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Phylogenetics

In biology, phylogenetics (/ˌfləˈnɛtɪks, -lə-/)[1][2][3] is the study of the evolutionary history and relationships among or within groups of organisms. These relationships are determined by phylogenetic inference methods that focus on observed heritable traits, such as DNA sequences, protein amino acid sequences, or morphology. The result of such an analysis is a phylogenetic tree—a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms.[4]

The tips of a phylogenetic tree can be living taxa or fossils, and represent the "end" or the present time in an evolutionary lineage. A phylogenetic diagram can be rooted or unrooted. A rooted tree diagram indicates the hypothetical common ancestor of the tree. An unrooted tree diagram (a network) makes no assumption about the ancestral line, and does not show the origin or "root" of the taxa in question or the direction of inferred evolutionary transformations.[5]

In addition to their use for inferring phylogenetic patterns among taxa, phylogenetic analyses are often employed to represent relationships among genes or individual organisms. Such uses have become central to understanding biodiversity, evolution, ecology, and genomes.

Phylogenetics is component of systematics that uses similarities and differences of the characteristics of species to interpret their evolutionary relationships and origins. Phylogenetics focuses on whether the characteristics of a species reinforce a phylogenetic inference that it diverged from the most recent common ancestor of a taxonomic group.[6]

In the field of cancer research, phylogenetics can be used to study the clonal evolution of tumors and molecular chronology, predicting and showing how cell populations vary throughout the progression of the disease and during treatment, using whole genome sequencing techniques.[7] The evolutionary processes behind cancer progression are quite different from those in species and are important to phylogenetic inference; these differences manifest in at least four areas: the types of aberrations that occur, the rates of mutation, the intensity, and high heterogeneity - variability - of tumor cell subclones.[8]

Phylogenetics can also aid in drug design and discovery. Phylogenetics allows scientists to organize species and can show which species are likely to have inherited particular traits that are medically useful, such as producing biologically active compounds - those that have effects on the human body. For example, in drug discovery, venom-producing animals are particularly useful. Venoms from these animals produce several important drugs, e.g., ACE inhibitors and Prialt (Ziconotide). To find new venoms, scientists turn to phylogenetics to screen for closely related species that may have the same useful traits. The phylogenetic tree shows which species of fish have an origin of venom, and related fish they may contain the trait. Using this approach in studying venomous fish, biologists are able to identify the fish species that may be venomous. Biologist have used this approach in many species such as snakes and lizards.[9] In forensic science, phylogenetic tools are useful to assess DNA evidence for court cases. The simple phylogenetic tree of viruses A-E shows the relationships between viruses e.g., all viruses are descendants of Virus A.

HIV forensics uses phylogenetic analysis to track the differences in HIV genes and determine the relatedness of two samples. Phylogenetic analysis has been used in criminal trials to exonerate or hold individuals. HIV forensics does have its limitations, i.e., it cannot be the sole proof of transmission between individuals and phylogenetic analysis which shows transmission relatedness does not indicate direction of transmission.[10]

Taxonomy and classification edit

 
One small clade of fish, showing how venom has evolved multiple times.[9]

Taxonomy is the identification, naming, and classification of organisms. Compared to systemization, classification emphasizes whether a species has characteristics of a taxonomic group.[6] The Linnaean classification system developed in the 1700s by Carolus Linnaeus is the foundation for modern classification methods. Linnaean classification relies on an organism's phenotype or physical characteristics to group and organize species.[11] With the emergence of biochemistry, organism classifications are now usually based on phylogenetic data, and many systematists contend that only monophyletic taxa should be recognized as named groups. The degree to which classification depends on inferred evolutionary history differs depending on the school of taxonomy: phenetics ignores phylogenetic speculation altogether, trying to represent the similarity between organisms instead; cladistics (phylogenetic systematics) tries to reflect phylogeny in its classifications by only recognizing groups based on shared, derived characters (synapomorphies); evolutionary taxonomy tries to take into account both the branching pattern and "degree of difference" to find a compromise between them.

Inference of a phylogenetic tree edit

Usual methods of phylogenetic inference involve computational approaches implementing the optimality criteria and methods of parsimony, maximum likelihood (ML), and MCMC-based Bayesian inference. All these depend upon an implicit or explicit mathematical model describing the evolution of characters observed.[12]

Phenetics, popular in the mid-20th century but now largely obsolete, used distance matrix-based methods to construct trees based on overall similarity in morphology or similar observable traits (i.e. in the phenotype or the overall similarity of DNA, not the DNA sequence), which was often assumed to approximate phylogenetic relationships.

Prior to 1950, phylogenetic inferences were generally presented as narrative scenarios. Such methods are often ambiguous and lack explicit criteria for evaluating alternative hypotheses.[13][14][15]

Impacts of taxon sampling edit

In phylogenetic analysis, taxon sampling selects a small group of taxa to represent the evolutionary history of its broader population.[16] This process is also known as stratified sampling or clade-based sampling.[17] The practice occurs given limited resources to compare and analyze every species within a target population.[16] Based on the representative group selected, the construction and accuracy of phylogenetic trees vary, which impacts derived phylogenetic inferences.[17]

Unavailable datasets, such as an organism's incomplete DNA and protein amino acid sequences in genomic databases, directly restrict taxonomic sampling.[17] Consequently, a significant source of error within phylogenetic analysis occurs due to inadequate taxon samples. Accuracy may be improved by increasing the number of genetic samples within its monophyletic group. Conversely, increasing sampling from outgroups extraneous to the target stratified population may decrease accuracy. Long branch attraction is an attributed theory for this occurrence, where nonrelated branches are incorrectly classified together, insinuating a shared evolutionary history.[16]

 
Percentage of inter-ordinal branches reconstructed with a constant number of bases and four phylogenetic tree construction models; neighbor-joining (NJ), minimum evolution (ME), unweighted maximum parsimony (MP), and maximum likelihood (ML). Demonstrates phylogenetic analysis with fewer taxa and more genes per taxon matches more often with the replicable consensus tree. The dotted line demonstrates an equal accuracy increase between the two taxon sampling methods. Figure is property of Michael S. Rosenberg and Sudhir Kumar as presented in the journal article Taxon Sampling, Bioinformatics, and Phylogenomics.[17]

There are debates if increasing the number of taxa sampled improves phylogenetic accuracy more than increasing the number of genes sampled per taxon. Differences in each method's sampling impact the number of nucleotide sites utilized in a sequence alignment, which may contribute to disagreements. For example, phylogenetic trees constructed utilizing a more significant number of total nucleotides are generally more accurate, as supported by phylogenetic trees' bootstrapping replicability from random sampling.

The graphic presented in Taxon Sampling, Bioinformatics, and Phylogenomics, compares the correctness of phylogenetic trees generated using fewer taxa and more sites per taxon on the x-axis to more taxa and fewer sites per taxon on the y-axis. With fewer taxa, more genes are sampled amongst the taxonomic group; in comparison, with more taxa added to the taxonomic sampling group, fewer genes are sampled. Each method has the same total number of nucleotide sites sampled. Furthermore, the dotted line represents a 1:1 accuracy between the two sampling methods. As seen in the graphic, most of the plotted points are located below the dotted line, which indicates gravitation toward increased accuracy when sampling fewer taxa with more sites per taxon. The research performed utilizes four different phylogenetic tree construction models to verify the theory; neighbor-joining (NJ), minimum evolution (ME), unweighted maximum parsimony (MP), and maximum likelihood (ML). In the majority of models, sampling fewer taxon with more sites per taxon demonstrated higher accuracy.

Generally, with the alignment of a relatively equal number of total nucleotide sites, sampling more genes per taxon has higher bootstrapping replicability than sampling more taxa. However, unbalanced datasets within genomic databases make increasing the gene comparison per taxon in uncommonly sampled organisms increasingly difficult.[17]

History edit

Overview edit

The term "phylogeny" derives from the German Phylogenie, introduced by Haeckel in 1866,[18] and the Darwinian approach to classification became known as the "phyletic" approach.[19] It can be traced back to Aristotle, who wrote in his Posterior Analytics, "We may assume the superiority ceteris paribus [other things being equal] of the demonstration which derives from fewer postulates or hypotheses."

Ernst Haeckel's recapitulation theory edit

The modern concept of phylogenetics evolved primarily as a disproof of a previously widely accepted theory. During the late 19th century, Ernst Haeckel's recapitulation theory, or "biogenetic fundamental law", was widely accepted. It was often expressed as "ontogeny recapitulates phylogeny", i.e. the development of a single organism during its lifetime, from germ to adult, successively mirrors the adult stages of successive ancestors of the species to which it belongs. But this theory has long been rejected.[20][21] Instead, ontogeny evolves – the phylogenetic history of a species cannot be read directly from its ontogeny, as Haeckel thought would be possible, but characters from ontogeny can be (and have been) used as data for phylogenetic analyses; the more closely related two species are, the more apomorphies their embryos share.

Timeline of key points edit

 
Branching tree diagram from Heinrich Georg Bronn's work (1858)
 
Phylogenetic tree suggested by Haeckel (1866)
  • 14th century, lex parsimoniae (parsimony principle), William of Ockam, English philosopher, theologian, and Franciscan friar, but the idea actually goes back to Aristotle, as a precursor concept. He introduced the concept of Occam's razor, which is the problem solving principle that recommends searching for explanations constructed with the smallest possible set of elements. Though he did not use these exact words, the principle can be summarized as "Entities must not be multiplied beyond necessity." The principle advocates that when presented with competing hypotheses about the same prediction, one should prefer the one that requires fewest assumptions.
  • 1763, Bayesian probability, Rev. Thomas Bayes,[22] a precursor concept. Bayesian probability began a resurgence in the 1950's, allowing scientists in the computing field to pair traditional Bayesian statistics with other more modern techniques. It is now used as a blanket term for several related interpretations of probability as an amount of epistemic confidence.
  • 18th century, Pierre Simon (Marquis de Laplace), perhaps first to use ML (maximum likelihood), precursor concept. His work gave way to the Laplace distribution, which can be directly linked to least absolute deviations.
  • 1809, evolutionary theory, Philosophie Zoologique, Jean-Baptiste de Lamarck, precursor concept, foreshadowed in the 17th century and 18th century by Voltaire, Descartes, and Leibniz, with Leibniz even proposing evolutionary changes to account for observed gaps suggesting that many species had become extinct, others transformed, and different species that share common traits may have at one time been a single race,[23] also foreshadowed by some early Greek philosophers such as Anaximander in the 6th century BC and the atomists of the 5th century BC, who proposed rudimentary theories of evolution[24]
  • 1837, Darwin's notebooks show an evolutionary tree[25]
  • 1840, American Geologist Edward Hitchcock published what is considered to be the first paleontological "Tree of Life". Many critiques, modifications, and explanations would follow.[26]
     
    This chart displays one of the first published attempts at a paleontological "Tree of Life" by Geologist Edward Hitchcock. (1840)
  • 1843, distinction between homology and analogy (the latter now referred to as homoplasy), Richard Owen, precursor concept. Homology is the term used to characterize the similarity of features that can be parsimoniously explained by common ancestry. Homoplasy is the term used to describe a feature that has been gained or lost independently in separate lineages over the course of evolution.
  • 1858, Paleontologist Heinrich Georg Bronn (1800–1862) published a hypothetical tree to illustrating the paleontological "arrival" of new, similar species following the extinction of an older species. Bronn did not propose a mechanism responsible for such phenomena, precursor concept.[27]
  • 1858, elaboration of evolutionary theory, Darwin and Wallace,[28] also in Origin of Species by Darwin the following year, precursor concept
  • 1866, Ernst Haeckel, first publishes his phylogeny-based evolutionary tree, precursor concept. Haeckel introduces the now-disproved recapitulation theory.
  • 1893, Dollo's Law of Character State Irreversibility,[29] precursor concept. Dollo's Law of Irreversibility states that "an organism never comes back exactly to its previous state due to the indestructible nature of the past, it always retains some trace of the transitional stages through which it has passed."[30]
  • 1912, ML (maximum likelihood recommended, analyzed, and popularized by Ronald Fisher, precursor concept. Fisher is one of the main contributors to the early 20th-century revival of Darwinism, and has been called the "greatest of Darwin's successors" for his contributions to the revision of the theory of evolution and his use of mathematics to combine Mendelian genetics and natural selection in the 20th century "modern synthesis".
  • 1921, Tillyard uses term "phylogenetic" and distinguishes between archaic and specialized characters in his classification system[31]
  • 1940, term "clade" coined by Lucien Cuénot
  • 1949, Jackknife resampling, Maurice Quenouille (foreshadowed in '46 by Mahalanobis and extended in '58 by Tukey), precursor concept
  • 1950, Willi Hennig's classic formalization.[32] Hennig is considered the founder of phylogenetic systematics, and published his first works in German of this year. He also asserted a version of the parsimony principle, stating that the presence of amorphous characters in different species 'is always reason for suspecting kinship, and that their origin by convergence should not be presumed a priori'. This has been considered a foundational view of phylogenetic inference.
  • 1952, William Wagner's ground plan divergence method[33]
  • 1953, "cladogenesis" coined[34]
  • 1960, "cladistic" coined by Cain and Harrison[35]
  • 1963, first attempt to use ML (maximum likelihood) for phylogenetics, Edwards and Cavalli-Sforza[36]
  • 1965
    • Camin-Sokal parsimony, first parsimony (optimization) criterion and first computer program/algorithm for cladistic analysis both by Camin and Sokal[37]
    • character compatibility method, also called clique analysis, introduced independently by Camin and Sokal (loc. cit.) and E. O. Wilson[38]
  • 1966
    • English translation of Hennig[39]
    • "cladistics" and "cladogram" coined (Webster's, loc. cit.)
  • 1969
    • dynamic and successive weighting, James Farris[40]
    • Wagner parsimony, Kluge and Farris[41]
    • CI (consistency index), Kluge and Farris[41]
    • introduction of pairwise compatibility for clique analysis, Le Quesne[42]
  • 1970, Wagner parsimony generalized by Farris[43]
  • 1971
    • first successful application of ML (maximum likelihood) to phylogenetics (for protein sequences), Neyman[44]
    • Fitch parsimony, Walter M. Fitch.[45] These gave way to the most basic ideas of maximum parsimony. Fitch is known for his work on reconstructing phylogenetic trees from protein and DNA sequences. His definition of orthologous sequences has been referenced in many research publications.
    • NNI (nearest neighbour interchange), first branch-swapping search strategy, developed independently by Robinson[46] and Moore et al.
    • ME (minimum evolution), Kidd and Sgaramella-Zonta[47] (it is unclear if this is the pairwise distance method or related to ML as Edwards and Cavalli-Sforza call ML "minimum evolution")
  • 1972, Adams consensus, Adams[48]
  • 1976, prefix system for ranks, Farris[49]
  • 1977, Dollo parsimony, Farris[50]
  • 1979
    • Nelson consensus, Nelson[51]
    • MAST (maximum agreement subtree)((GAS) greatest agreement subtree), a consensus method, Gordon[52]
    • bootstrap, Bradley Efron, precursor concept[53]
  • 1980, PHYLIP, first software package for phylogenetic analysis, Joseph Felsenstein. A free computational phylogenetics package of programs for inferring evolutionary trees (phylogenies). One such example tree created by PHILYP, called a "drawgram", generates rooted trees. This image shown in the figure below shows the evolution of phylogenetic trees over time.
  • 1981
    • majority consensus, Margush and MacMorris[54]
    • strict consensus, Sokal and Rohlf[55]
       
      This image depicts a PHILYP generated drawgram. This drawgram is an example of one of the possible trees the software is capable of generating.
      first computationally efficient ML (maximum likelihood) algorithm.[56] Felsenstein created the Felsenstein Maximum Likelihood method, used for the inference of phylogeny which evaluates a hypothesis about evolutionary history in terms of the probability that the proposed model and the hypothesized history would give rise to the observed data set.
  • 1982
    • PHYSIS, Mikevich and Farris
    • branch and bound, Hendy and Penny[57]
  • 1985
    • first cladistic analysis of eukaryotes based on combined phenotypic and genotypic evidence Diana Lipscomb[58]
    • first issue of Cladistics
    • first phylogenetic application of bootstrap, Felsenstein[59]
    • first phylogenetic application of jackknife, Scott Lanyon[60]
  • 1986, MacClade, Maddison and Maddison
  • 1987, neighbor-joining method Saitou and Nei[61]
  • 1988, Hennig86 (version 1.5), Farris
    • Bremer support (decay index), Bremer[62]
  • 1989
    • RI (retention index), RCI (rescaled consistency index), Farris[63]
    • HER (homoplasy excess ratio), Archie[64]
  • 1990
    • combinable components (semi-strict) consensus, Bremer[65]
    • SPR (subtree pruning and regrafting), TBR (tree bisection and reconnection), Swofford and Olsen[66]
  • 1991
    • DDI (data decisiveness index), Goloboff[67][68]
    • first cladistic analysis of eukaryotes based only on phenotypic evidence, Lipscomb
  • 1993, implied weighting Goloboff[69]
  • 1994, reduced consensus: RCC (reduced cladistic consensus) for rooted trees, Wilkinson[70]
  • 1995, reduced consensus RPC (reduced partition consensus) for unrooted trees, Wilkinson[71]
  • 1996, first working methods for BI (Bayesian Inference) independently developed by Li,[72] Mau,[73] and Rannala and Yang[74] and all using MCMC (Markov chain-Monte Carlo)
  • 1998, TNT (Tree Analysis Using New Technology), Goloboff, Farris, and Nixon
  • 1999, Winclada, Nixon
  • 2003, symmetrical resampling, Goloboff[75]
  • 2004, 2005, similarity metric (using an approximation to Kolmogorov complexity) or NCD (normalized compression distance), Li et al.,[76] Cilibrasi and Vitanyi.[77]

Outside biology edit

 
Phylogeny of Indo-European languages[78]

Phylogenetic tools and representations (trees and networks) can also be applied to philology, the study of the evolution of oral languages and written text and manuscripts, such as in the field of quantitative comparative linguistics.[79]

Computational phylogenetics can be used to investigate a language as an evolutionary system. The evolution of human language closely corresponds with human's biological evolution which allows phylogenetic methods to be applied. The concept of a "tree" serves as an efficient way to represent relationships between languages and language splits. It also serves as a way of testing hypotheses about the connections and ages of language families. For example, relationships among languages can be shown by using cognates as characters.[80][81] The phylogenetic tree of Indo-European languages shows the relationships between several of the languages in a timeline, as well as the similarity between words and word order.

There are three types of criticisms about using phylogenetics in philology, the first arguing that languages and species are different entities, therefore you can not use the same methods to study both. The second being how phylogenetic methods are being applied to linguistic data. And the third, discusses the types of data that is being used to construct the trees.[80]

Bayesian phylogenetic methods, which are sensitive to how treelike the data is, allow for the reconstruction of relationships among languages, locally and globally. The main two reasons for the use of Bayesian phylogenetics are that (1) diverse scenarios can be included in calculations and (2) the output is a sample of trees and not a single tree with true claim.[82]

The same process can be applied to texts and manuscripts. In Paleography, the study of historical writings and manuscripts, texts were replicated by scribes who copied from their source and alterations - i.e., 'mutations' - occurred when the scribe did not precisely copy the source.[83]

Phylogenetic screens edit

Phylogenetic screens involve the pharmacological examination of closely related groups of organisms. Advances in cladistics analysis through rapid computer programs and molecular techniques have improved the precision of phylogenetic determination, allowing for the identification of species with pharmacological potential.

Phylogenetic screens have been used in a rudimentary manner in the past, such as studying the Apocynaceae family of plants known for their alkaloid-producing species like Catharanthus, which produces vincristine, an antileukemia drug. However, modern techniques now enable researchers to study close relatives of a species to uncover either (1) higher abundance of important bioactive compounds (e.g., species of Taxus for taxol) or (2) natural variants of known pharmaceuticals (e.g., species of Catharanthus for different forms of vincristine or vinblastine.[citation needed]

Looking at Fig 6. it contains the phylogenetic screen of biodiversity within the fungi family. As seen inside the circle there are subtrees present that were done via phylogenetic analysis. These relations help understand the evolutionary history of various groups of organisms, identifying relationships between different species, and predicting future evolutionary changes. If we were to take biodiversity information from existing knowledge there might be relations between species or subgroups that we didn't know. But with emerging imagery systems and new analysis techniques more genetic relation can be found in biodiverse fields. The image below can help with conservation efforts as there are rare species of fungi involved, that could be beneficial to ecosystems all around.[84]

 
Phylogenetic Subtree of fungi containing different biodiverse sections of the fungi group.

Phylogenetic tree shapes edit

Whole-genome sequence data of pathogens obtained from outbreaks or epidemics of infectious diseases can provide important insights into transmission dynamics and inform public health strategies. Previous studies have relied on integrating genomic and epidemiological data to reconstruct transmission events. However, recent research has explored the possibility of deducing transmission patterns solely from genomic data using phylodynamics, which involves analyzing the properties of pathogen phylogenies. Phylodynamics uses theoretical models to compare predicted branch lengths with actual branch lengths in phylogenies to infer transmission patterns. Additionally, coalescent theory, which describes probability distributions on trees based on population size, has been adapted for epidemiological purposes. Another potential source of information within phylogenies that has been explored is "tree shape". These approaches are computationally intensive but have the potential to provide valuable insights into pathogen transmission dynamics.[85]

 
Pathogen Transmission Trees

The structure of the host contact network has a profound impact on the dynamics of outbreaks or epidemics, and outbreak management strategies rely on the type of transmission patterns driving the outbreak. One can expect that pathogen genomes spreading through different contact network structures, such as chains, homogenous networks, or networks with super-spreaders, would accumulate mutations in distinct patterns, resulting in noticeable differences in the shape of phylogenetic trees, as illustrated in Fig. 1. Analyzation of the structural characteristics of phylogenetic trees generated from simulated bacterial genome evolution across multiple types of contact networks  was conducted. Simple topological properties of phylogenetic trees that, when combined, can be used to classify trees into chain-like, homogenous, or super-spreading dynamics, revealing transmission dynamics. These properties form the basis of a computational classifier are used to classify real-world outbreaks. Remarkably, the computational predictions of overall transmission dynamics for each outbreak align with known epidemiology [86]

 
Graphical Representation of Phylogenetic Tree analysis

Different transmission networks result in quantitatively different tree shapes to determine whether tree shapes captured information about the underlying disease transmission patterns within an outbreak, we simulated evolution of a bacterial genome over three types of outbreak contact network—homogenous, super-spreading and chain—and summarized the resulting phylogenies with five metrics describing tree shape. Figures 2 and 3 illustrate the distributions of these metrics across the three types of outbreaks, revealing clear differences in tree topology depending on the underlying host contact network. Super-spreader networks gave rise to phylogenies with higher Colless imbalance, longer ladder patterns, lower Δw and deeper trees than transmission networks with a homogeneous distribution of contacts. Trees derived from chain-like networks were less variable, deeper, more imbalanced and narrower than the other trees. Other topological summary metrics considered did not resolve the three outbreak types as fully (Supplementary Information). Scatter plots can be used for pathogen transmission analysis to visualize the relationship between two variables, such as the number of infected individuals and the time since infection. For example, a scatter plot can be used to examine the relationship between the number of cases of a pathogen and the amount of time since the first case was reported. This can help to identify trends and patterns in the data, such as whether the spread of the pathogen is increasing or decreasing over time. Scatter plots can also be used to identify any outliers or clusters of data points, which can provide insight into potential transmission routes or super-spreader events. Overall, scatter plots can be a useful tool in pathogen transmission analysis to identify patterns and trends in the data, and to inform public health interventions and control measures.[86]

 
Pathogen Transfer Box Plot data

The box plot imagery on the right displays the pathogen transformation data. Box plots are often used in statistical analysis to compare different groups or to visualize changes in a single group over time. They are particularly useful when dealing with large datasets or when comparing several groups, as they can quickly highlight differences or similarities in the data. Box plots, also known as box-and-whisker plots, are useful in statistical analysis to provide a summary of the distribution of a dataset. They display the range, median, quartiles, and potential outliers of the data in a visual manner. Box plots are commonly used to compare different groups or to analyze changes in a single group over time. They are especially helpful when working with large datasets or when comparing multiple groups, as they can easily identify any differences or similarities in the data. This makes box plots a valuable tool for analyzing pathogen transmission data, as they can help to identify important features in the distribution of the data.[86]

See also edit

References edit

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Bibliography edit

  • Schuh, Randall T.; Brower, Andrew V.Z. (2009). Biological Systematics: principles and applications (2nd ed.). Ithaca: Comstock Pub. Associates/Cornell University Press. ISBN 978-0-8014-4799-0. OCLC 312728177.
  • Forster, Peter; Renfrew, Colin, eds. (2006). Phylogenetic Methods and the Prehistory of Languages. McDonald Institute Press, University of Cambridge. ISBN 978-1-902937-33-5. OCLC 69733654.
  • Baum, David A.; Smith, Stacey D. (2013). Tree Thinking: an introduction to phylogenetic biology. Greenwood Village, CO: Roberts and Company. ISBN 978-1-936221-16-5. OCLC 767565978.
  • Stuessy, Tod F. (2009). Plant Taxonomy: The Systematic Evaluation of Comparative Data. Columbia University Press. ISBN 978-0-231-14712-5.

External links edit

  •   The dictionary definition of phylogenetics at Wiktionary

phylogenetics, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, february, 20. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Phylogenetics news newspapers books scholar JSTOR February 2024 Learn how and when to remove this template message In biology phylogenetics ˌ f aɪ l oʊ dʒ e ˈ n ɛ t ɪ k s l e 1 2 3 is the study of the evolutionary history and relationships among or within groups of organisms These relationships are determined by phylogenetic inference methods that focus on observed heritable traits such as DNA sequences protein amino acid sequences or morphology The result of such an analysis is a phylogenetic tree a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms 4 The tips of a phylogenetic tree can be living taxa or fossils and represent the end or the present time in an evolutionary lineage A phylogenetic diagram can be rooted or unrooted A rooted tree diagram indicates the hypothetical common ancestor of the tree An unrooted tree diagram a network makes no assumption about the ancestral line and does not show the origin or root of the taxa in question or the direction of inferred evolutionary transformations 5 In addition to their use for inferring phylogenetic patterns among taxa phylogenetic analyses are often employed to represent relationships among genes or individual organisms Such uses have become central to understanding biodiversity evolution ecology and genomes Phylogenetics is component of systematics that uses similarities and differences of the characteristics of species to interpret their evolutionary relationships and origins Phylogenetics focuses on whether the characteristics of a species reinforce a phylogenetic inference that it diverged from the most recent common ancestor of a taxonomic group 6 In the field of cancer research phylogenetics can be used to study the clonal evolution of tumors and molecular chronology predicting and showing how cell populations vary throughout the progression of the disease and during treatment using whole genome sequencing techniques 7 The evolutionary processes behind cancer progression are quite different from those in species and are important to phylogenetic inference these differences manifest in at least four areas the types of aberrations that occur the rates of mutation the intensity and high heterogeneity variability of tumor cell subclones 8 Phylogenetics can also aid in drug design and discovery Phylogenetics allows scientists to organize species and can show which species are likely to have inherited particular traits that are medically useful such as producing biologically active compounds those that have effects on the human body For example in drug discovery venom producing animals are particularly useful Venoms from these animals produce several important drugs e g ACE inhibitors and Prialt Ziconotide To find new venoms scientists turn to phylogenetics to screen for closely related species that may have the same useful traits The phylogenetic tree shows which species of fish have an origin of venom and related fish they may contain the trait Using this approach in studying venomous fish biologists are able to identify the fish species that may be venomous Biologist have used this approach in many species such as snakes and lizards 9 In forensic science phylogenetic tools are useful to assess DNA evidence for court cases The simple phylogenetic tree of viruses A E shows the relationships between viruses e g all viruses are descendants of Virus A HIV forensics uses phylogenetic analysis to track the differences in HIV genes and determine the relatedness of two samples Phylogenetic analysis has been used in criminal trials to exonerate or hold individuals HIV forensics does have its limitations i e it cannot be the sole proof of transmission between individuals and phylogenetic analysis which shows transmission relatedness does not indicate direction of transmission 10 Contents 1 Taxonomy and classification 2 Inference of a phylogenetic tree 3 Impacts of taxon sampling 4 History 4 1 Overview 4 2 Ernst Haeckel s recapitulation theory 4 3 Timeline of key points 5 Outside biology 6 Phylogenetic screens 7 Phylogenetic tree shapes 8 See also 9 References 10 Bibliography 11 External linksTaxonomy and classification editMain article Taxonomy nbsp One small clade of fish showing how venom has evolved multiple times 9 Taxonomy is the identification naming and classification of organisms Compared to systemization classification emphasizes whether a species has characteristics of a taxonomic group 6 The Linnaean classification system developed in the 1700s by Carolus Linnaeus is the foundation for modern classification methods Linnaean classification relies on an organism s phenotype or physical characteristics to group and organize species 11 With the emergence of biochemistry organism classifications are now usually based on phylogenetic data and many systematists contend that only monophyletic taxa should be recognized as named groups The degree to which classification depends on inferred evolutionary history differs depending on the school of taxonomy phenetics ignores phylogenetic speculation altogether trying to represent the similarity between organisms instead cladistics phylogenetic systematics tries to reflect phylogeny in its classifications by only recognizing groups based on shared derived characters synapomorphies evolutionary taxonomy tries to take into account both the branching pattern and degree of difference to find a compromise between them Inference of a phylogenetic tree editMain article Computational phylogenetics Usual methods of phylogenetic inference involve computational approaches implementing the optimality criteria and methods of parsimony maximum likelihood ML and MCMC based Bayesian inference All these depend upon an implicit or explicit mathematical model describing the evolution of characters observed 12 Phenetics popular in the mid 20th century but now largely obsolete used distance matrix based methods to construct trees based on overall similarity in morphology or similar observable traits i e in the phenotype or the overall similarity of DNA not the DNA sequence which was often assumed to approximate phylogenetic relationships Prior to 1950 phylogenetic inferences were generally presented as narrative scenarios Such methods are often ambiguous and lack explicit criteria for evaluating alternative hypotheses 13 14 15 Impacts of taxon sampling editIn phylogenetic analysis taxon sampling selects a small group of taxa to represent the evolutionary history of its broader population 16 This process is also known as stratified sampling or clade based sampling 17 The practice occurs given limited resources to compare and analyze every species within a target population 16 Based on the representative group selected the construction and accuracy of phylogenetic trees vary which impacts derived phylogenetic inferences 17 Unavailable datasets such as an organism s incomplete DNA and protein amino acid sequences in genomic databases directly restrict taxonomic sampling 17 Consequently a significant source of error within phylogenetic analysis occurs due to inadequate taxon samples Accuracy may be improved by increasing the number of genetic samples within its monophyletic group Conversely increasing sampling from outgroups extraneous to the target stratified population may decrease accuracy Long branch attraction is an attributed theory for this occurrence where nonrelated branches are incorrectly classified together insinuating a shared evolutionary history 16 nbsp Percentage of inter ordinal branches reconstructed with a constant number of bases and four phylogenetic tree construction models neighbor joining NJ minimum evolution ME unweighted maximum parsimony MP and maximum likelihood ML Demonstrates phylogenetic analysis with fewer taxa and more genes per taxon matches more often with the replicable consensus tree The dotted line demonstrates an equal accuracy increase between the two taxon sampling methods Figure is property of Michael S Rosenberg and Sudhir Kumar as presented in the journal article Taxon Sampling Bioinformatics and Phylogenomics 17 There are debates if increasing the number of taxa sampled improves phylogenetic accuracy more than increasing the number of genes sampled per taxon Differences in each method s sampling impact the number of nucleotide sites utilized in a sequence alignment which may contribute to disagreements For example phylogenetic trees constructed utilizing a more significant number of total nucleotides are generally more accurate as supported by phylogenetic trees bootstrapping replicability from random sampling The graphic presented in Taxon Sampling Bioinformatics and Phylogenomics compares the correctness of phylogenetic trees generated using fewer taxa and more sites per taxon on the x axis to more taxa and fewer sites per taxon on the y axis With fewer taxa more genes are sampled amongst the taxonomic group in comparison with more taxa added to the taxonomic sampling group fewer genes are sampled Each method has the same total number of nucleotide sites sampled Furthermore the dotted line represents a 1 1 accuracy between the two sampling methods As seen in the graphic most of the plotted points are located below the dotted line which indicates gravitation toward increased accuracy when sampling fewer taxa with more sites per taxon The research performed utilizes four different phylogenetic tree construction models to verify the theory neighbor joining NJ minimum evolution ME unweighted maximum parsimony MP and maximum likelihood ML In the majority of models sampling fewer taxon with more sites per taxon demonstrated higher accuracy Generally with the alignment of a relatively equal number of total nucleotide sites sampling more genes per taxon has higher bootstrapping replicability than sampling more taxa However unbalanced datasets within genomic databases make increasing the gene comparison per taxon in uncommonly sampled organisms increasingly difficult 17 History editOverview edit The term phylogeny derives from the German Phylogenie introduced by Haeckel in 1866 18 and the Darwinian approach to classification became known as the phyletic approach 19 It can be traced back to Aristotle who wrote in his Posterior Analytics We may assume the superiority ceteris paribus other things being equal of the demonstration which derives from fewer postulates or hypotheses Ernst Haeckel s recapitulation theory edit The modern concept of phylogenetics evolved primarily as a disproof of a previously widely accepted theory During the late 19th century Ernst Haeckel s recapitulation theory or biogenetic fundamental law was widely accepted It was often expressed as ontogeny recapitulates phylogeny i e the development of a single organism during its lifetime from germ to adult successively mirrors the adult stages of successive ancestors of the species to which it belongs But this theory has long been rejected 20 21 Instead ontogeny evolves the phylogenetic history of a species cannot be read directly from its ontogeny as Haeckel thought would be possible but characters from ontogeny can be and have been used as data for phylogenetic analyses the more closely related two species are the more apomorphies their embryos share Timeline of key points edit nbsp Branching tree diagram from Heinrich Georg Bronn s work 1858 nbsp Phylogenetic tree suggested by Haeckel 1866 14th century lex parsimoniae parsimony principle William of Ockam English philosopher theologian and Franciscan friar but the idea actually goes back to Aristotle as a precursor concept He introduced the concept of Occam s razor which is the problem solving principle that recommends searching for explanations constructed with the smallest possible set of elements Though he did not use these exact words the principle can be summarized as Entities must not be multiplied beyond necessity The principle advocates that when presented with competing hypotheses about the same prediction one should prefer the one that requires fewest assumptions 1763 Bayesian probability Rev Thomas Bayes 22 a precursor concept Bayesian probability began a resurgence in the 1950 s allowing scientists in the computing field to pair traditional Bayesian statistics with other more modern techniques It is now used as a blanket term for several related interpretations of probability as an amount of epistemic confidence 18th century Pierre Simon Marquis de Laplace perhaps first to use ML maximum likelihood precursor concept His work gave way to the Laplace distribution which can be directly linked to least absolute deviations 1809 evolutionary theory Philosophie Zoologique Jean Baptiste de Lamarck precursor concept foreshadowed in the 17th century and 18th century by Voltaire Descartes and Leibniz with Leibniz even proposing evolutionary changes to account for observed gaps suggesting that many species had become extinct others transformed and different species that share common traits may have at one time been a single race 23 also foreshadowed by some early Greek philosophers such as Anaximander in the 6th century BC and the atomists of the 5th century BC who proposed rudimentary theories of evolution 24 1837 Darwin s notebooks show an evolutionary tree 25 1840 American Geologist Edward Hitchcock published what is considered to be the first paleontological Tree of Life Many critiques modifications and explanations would follow 26 nbsp This chart displays one of the first published attempts at a paleontological Tree of Life by Geologist Edward Hitchcock 1840 1843 distinction between homology and analogy the latter now referred to as homoplasy Richard Owen precursor concept Homology is the term used to characterize the similarity of features that can be parsimoniously explained by common ancestry Homoplasy is the term used to describe a feature that has been gained or lost independently in separate lineages over the course of evolution 1858 Paleontologist Heinrich Georg Bronn 1800 1862 published a hypothetical tree to illustrating the paleontological arrival of new similar species following the extinction of an older species Bronn did not propose a mechanism responsible for such phenomena precursor concept 27 1858 elaboration of evolutionary theory Darwin and Wallace 28 also in Origin of Species by Darwin the following year precursor concept 1866 Ernst Haeckel first publishes his phylogeny based evolutionary tree precursor concept Haeckel introduces the now disproved recapitulation theory 1893 Dollo s Law of Character State Irreversibility 29 precursor concept Dollo s Law of Irreversibility states that an organism never comes back exactly to its previous state due to the indestructible nature of the past it always retains some trace of the transitional stages through which it has passed 30 1912 ML maximum likelihood recommended analyzed and popularized by Ronald Fisher precursor concept Fisher is one of the main contributors to the early 20th century revival of Darwinism and has been called the greatest of Darwin s successors for his contributions to the revision of the theory of evolution and his use of mathematics to combine Mendelian genetics and natural selection in the 20th century modern synthesis 1921 Tillyard uses term phylogenetic and distinguishes between archaic and specialized characters in his classification system 31 1940 term clade coined by Lucien Cuenot 1949 Jackknife resampling Maurice Quenouille foreshadowed in 46 by Mahalanobis and extended in 58 by Tukey precursor concept 1950 Willi Hennig s classic formalization 32 Hennig is considered the founder of phylogenetic systematics and published his first works in German of this year He also asserted a version of the parsimony principle stating that the presence of amorphous characters in different species is always reason for suspecting kinship and that their origin by convergence should not be presumed a priori This has been considered a foundational view of phylogenetic inference 1952 William Wagner s ground plan divergence method 33 1953 cladogenesis coined 34 1960 cladistic coined by Cain and Harrison 35 1963 first attempt to use ML maximum likelihood for phylogenetics Edwards and Cavalli Sforza 36 1965 Camin Sokal parsimony first parsimony optimization criterion and first computer program algorithm for cladistic analysis both by Camin and Sokal 37 character compatibility method also called clique analysis introduced independently by Camin and Sokal loc cit and E O Wilson 38 1966 English translation of Hennig 39 cladistics and cladogram coined Webster s loc cit 1969 dynamic and successive weighting James Farris 40 Wagner parsimony Kluge and Farris 41 CI consistency index Kluge and Farris 41 introduction of pairwise compatibility for clique analysis Le Quesne 42 1970 Wagner parsimony generalized by Farris 43 1971 first successful application of ML maximum likelihood to phylogenetics for protein sequences Neyman 44 Fitch parsimony Walter M Fitch 45 These gave way to the most basic ideas of maximum parsimony Fitch is known for his work on reconstructing phylogenetic trees from protein and DNA sequences His definition of orthologous sequences has been referenced in many research publications NNI nearest neighbour interchange first branch swapping search strategy developed independently by Robinson 46 and Moore et al ME minimum evolution Kidd and Sgaramella Zonta 47 it is unclear if this is the pairwise distance method or related to ML as Edwards and Cavalli Sforza call ML minimum evolution 1972 Adams consensus Adams 48 1976 prefix system for ranks Farris 49 1977 Dollo parsimony Farris 50 1979 Nelson consensus Nelson 51 MAST maximum agreement subtree GAS greatest agreement subtree a consensus method Gordon 52 bootstrap Bradley Efron precursor concept 53 1980 PHYLIP first software package for phylogenetic analysis Joseph Felsenstein A free computational phylogenetics package of programs for inferring evolutionary trees phylogenies One such example tree created by PHILYP called a drawgram generates rooted trees This image shown in the figure below shows the evolution of phylogenetic trees over time 1981 majority consensus Margush and MacMorris 54 strict consensus Sokal and Rohlf 55 nbsp This image depicts a PHILYP generated drawgram This drawgram is an example of one of the possible trees the software is capable of generating first computationally efficient ML maximum likelihood algorithm 56 Felsenstein created the Felsenstein Maximum Likelihood method used for the inference of phylogeny which evaluates a hypothesis about evolutionary history in terms of the probability that the proposed model and the hypothesized history would give rise to the observed data set 1982 PHYSIS Mikevich and Farris branch and bound Hendy and Penny 57 1985 first cladistic analysis of eukaryotes based on combined phenotypic and genotypic evidence Diana Lipscomb 58 first issue of Cladistics first phylogenetic application of bootstrap Felsenstein 59 first phylogenetic application of jackknife Scott Lanyon 60 1986 MacClade Maddison and Maddison 1987 neighbor joining method Saitou and Nei 61 1988 Hennig86 version 1 5 Farris Bremer support decay index Bremer 62 1989 RI retention index RCI rescaled consistency index Farris 63 HER homoplasy excess ratio Archie 64 1990 combinable components semi strict consensus Bremer 65 SPR subtree pruning and regrafting TBR tree bisection and reconnection Swofford and Olsen 66 1991 DDI data decisiveness index Goloboff 67 68 first cladistic analysis of eukaryotes based only on phenotypic evidence Lipscomb 1993 implied weighting Goloboff 69 1994 reduced consensus RCC reduced cladistic consensus for rooted trees Wilkinson 70 1995 reduced consensus RPC reduced partition consensus for unrooted trees Wilkinson 71 1996 first working methods for BI Bayesian Inference independently developed by Li 72 Mau 73 and Rannala and Yang 74 and all using MCMC Markov chain Monte Carlo 1998 TNT Tree Analysis Using New Technology Goloboff Farris and Nixon 1999 Winclada Nixon 2003 symmetrical resampling Goloboff 75 2004 2005 similarity metric using an approximation to Kolmogorov complexity or NCD normalized compression distance Li et al 76 Cilibrasi and Vitanyi 77 Outside biology edit nbsp Phylogeny of Indo European languages 78 Phylogenetic tools and representations trees and networks can also be applied to philology the study of the evolution of oral languages and written text and manuscripts such as in the field of quantitative comparative linguistics 79 Computational phylogenetics can be used to investigate a language as an evolutionary system The evolution of human language closely corresponds with human s biological evolution which allows phylogenetic methods to be applied The concept of a tree serves as an efficient way to represent relationships between languages and language splits It also serves as a way of testing hypotheses about the connections and ages of language families For example relationships among languages can be shown by using cognates as characters 80 81 The phylogenetic tree of Indo European languages shows the relationships between several of the languages in a timeline as well as the similarity between words and word order There are three types of criticisms about using phylogenetics in philology the first arguing that languages and species are different entities therefore you can not use the same methods to study both The second being how phylogenetic methods are being applied to linguistic data And the third discusses the types of data that is being used to construct the trees 80 Bayesian phylogenetic methods which are sensitive to how treelike the data is allow for the reconstruction of relationships among languages locally and globally The main two reasons for the use of Bayesian phylogenetics are that 1 diverse scenarios can be included in calculations and 2 the output is a sample of trees and not a single tree with true claim 82 The same process can be applied to texts and manuscripts In Paleography the study of historical writings and manuscripts texts were replicated by scribes who copied from their source and alterations i e mutations occurred when the scribe did not precisely copy the source 83 Phylogenetic screens editThis Needs rewriting and citing so as to be helpful clear and encyclopedic the section s tone or style may not reflect the encyclopedic tone used on Wikipedia See Wikipedia s guide to writing better articles for suggestions February 2024 Learn how and when to remove this template message Phylogenetic screens involve the pharmacological examination of closely related groups of organisms Advances in cladistics analysis through rapid computer programs and molecular techniques have improved the precision of phylogenetic determination allowing for the identification of species with pharmacological potential Phylogenetic screens have been used in a rudimentary manner in the past such as studying the Apocynaceae family of plants known for their alkaloid producing species like Catharanthus which produces vincristine an antileukemia drug However modern techniques now enable researchers to study close relatives of a species to uncover either 1 higher abundance of important bioactive compounds e g species of Taxus for taxol or 2 natural variants of known pharmaceuticals e g species of Catharanthus for different forms of vincristine or vinblastine citation needed Looking at Fig 6 it contains the phylogenetic screen of biodiversity within the fungi family As seen inside the circle there are subtrees present that were done via phylogenetic analysis These relations help understand the evolutionary history of various groups of organisms identifying relationships between different species and predicting future evolutionary changes If we were to take biodiversity information from existing knowledge there might be relations between species or subgroups that we didn t know But with emerging imagery systems and new analysis techniques more genetic relation can be found in biodiverse fields The image below can help with conservation efforts as there are rare species of fungi involved that could be beneficial to ecosystems all around 84 nbsp Phylogenetic Subtree of fungi containing different biodiverse sections of the fungi group Phylogenetic tree shapes editThis article may be confusing or unclear to readers In particular this section includes dense text that might be hard to understand by general audiences Please help clarify the article There might be a discussion about this on the talk page February 2024 Learn how and when to remove this template message Whole genome sequence data of pathogens obtained from outbreaks or epidemics of infectious diseases can provide important insights into transmission dynamics and inform public health strategies Previous studies have relied on integrating genomic and epidemiological data to reconstruct transmission events However recent research has explored the possibility of deducing transmission patterns solely from genomic data using phylodynamics which involves analyzing the properties of pathogen phylogenies Phylodynamics uses theoretical models to compare predicted branch lengths with actual branch lengths in phylogenies to infer transmission patterns Additionally coalescent theory which describes probability distributions on trees based on population size has been adapted for epidemiological purposes Another potential source of information within phylogenies that has been explored is tree shape These approaches are computationally intensive but have the potential to provide valuable insights into pathogen transmission dynamics 85 nbsp Pathogen Transmission TreesThe structure of the host contact network has a profound impact on the dynamics of outbreaks or epidemics and outbreak management strategies rely on the type of transmission patterns driving the outbreak One can expect that pathogen genomes spreading through different contact network structures such as chains homogenous networks or networks with super spreaders would accumulate mutations in distinct patterns resulting in noticeable differences in the shape of phylogenetic trees as illustrated in Fig 1 Analyzation of the structural characteristics of phylogenetic trees generated from simulated bacterial genome evolution across multiple types of contact networks was conducted Simple topological properties of phylogenetic trees that when combined can be used to classify trees into chain like homogenous or super spreading dynamics revealing transmission dynamics These properties form the basis of a computational classifier are used to classify real world outbreaks Remarkably the computational predictions of overall transmission dynamics for each outbreak align with known epidemiology 86 nbsp Graphical Representation of Phylogenetic Tree analysisDifferent transmission networks result in quantitatively different tree shapes to determine whether tree shapes captured information about the underlying disease transmission patterns within an outbreak we simulated evolution of a bacterial genome over three types of outbreak contact network homogenous super spreading and chain and summarized the resulting phylogenies with five metrics describing tree shape Figures 2 and 3 illustrate the distributions of these metrics across the three types of outbreaks revealing clear differences in tree topology depending on the underlying host contact network Super spreader networks gave rise to phylogenies with higher Colless imbalance longer ladder patterns lower Dw and deeper trees than transmission networks with a homogeneous distribution of contacts Trees derived from chain like networks were less variable deeper more imbalanced and narrower than the other trees Other topological summary metrics considered did not resolve the three outbreak types as fully Supplementary Information Scatter plots can be used for pathogen transmission analysis to visualize the relationship between two variables such as the number of infected individuals and the time since infection For example a scatter plot can be used to examine the relationship between the number of cases of a pathogen and the amount of time since the first case was reported This can help to identify trends and patterns in the data such as whether the spread of the pathogen is increasing or decreasing over time Scatter plots can also be used to identify any outliers or clusters of data points which can provide insight into potential transmission routes or super spreader events Overall scatter plots can be a useful tool in pathogen transmission analysis to identify patterns and trends in the data and to inform public health interventions and control measures 86 nbsp Pathogen Transfer Box Plot dataThe box plot imagery on the right displays the pathogen transformation data Box plots are often used in statistical analysis to compare different groups or to visualize changes in a single group over time They are particularly useful when dealing with large datasets or when comparing several groups as they can quickly highlight differences or similarities in the data Box plots also known as box and whisker plots are useful in statistical analysis to provide a summary of the distribution of a dataset They display the range median quartiles and potential outliers of the data in a visual manner Box plots are commonly used to compare different groups or to analyze changes in a single group over time They are especially helpful when working with large datasets or when comparing multiple groups as they can easily identify any differences or similarities in the data This makes box plots a valuable tool for analyzing pathogen transmission data as they can help to identify important features in the distribution of the data 86 See also editAngiosperm Phylogeny Group Bauplan Bioinformatics Biomathematics Coalescent theory EDGE of Existence programme Evolutionary taxonomy Language family Maximum parsimony Microbial phylogenetics Molecular phylogeny Ontogeny PhyloCode Phylodynamics Phylogenesis Phylogenetic comparative methods Phylogenetic network Phylogenetic nomenclature Phylogenetic tree viewers Phylogenetics software Phylogenomics Phylogeny psychoanalysis Phylogeography SystematicsReferences edit phylogenetic Dictionary com Unabridged Online n d phylogenetic Merriam Webster com Dictionary from Greek fylh fῦlon phyle phylon tribe clan race and genetikos genetikos origin source birth Liddell Henry George Scott Robert Jones Henry Stuart 1968 A Greek English lexicon 9 ed Oxford Clarendon Press p 1961 phylogeny Biology online Retrieved 15 February 2013 Itzik Peer 1 January 2001 Phylogenetic Trees www cs tau ac il a b Harris Katherine 23 June 2019 Taxonomy amp Phylogeny Biology LibreTexts Retrieved 19 April 2023 Herberts Cameron Annala Matti Sipola Joonatan Ng Sarah W S Chen Xinyi E Nurminen Anssi Korhonen Olga V Munzur Asli D Beja Kevin Schonlau Elena Bernales Cecily Q Ritch Elie Bacon Jack V W Lack Nathan A Nykter Matti August 2022 Deep whole genome ctDNA chronology of treatment resistant prostate cancer Nature 608 7921 199 208 Bibcode 2022Natur 608 199H doi 10 1038 s41586 022 04975 9 ISSN 1476 4687 PMID 35859180 S2CID 250730778 Schwartz Russell Schaffer Alejandro A April 2017 The evolution of tumour phylogenetics principles and practice Nature Reviews Genetics 18 4 213 229 doi 10 1038 nrg 2016 170 ISSN 1471 0056 PMC 5886015 PMID 28190876 a b Drug discovery Understanding Evolution 7 July 2021 Retrieved 23 April 2023 Bernard EJ Azad Y Vandamme AM Weait M Geretti AM 2007 HIV forensics pitfalls and acceptable standards in the use of phylogenetic analysis as evidence in criminal investigations of HIV transmission HIV Medicine 8 6 382 387 doi 10 1111 j 1468 1293 2007 00486 x ISSN 1464 2662 PMID 17661846 S2CID 38883310 CK 12 Foundation 6 March 2021 Linnaean Classification Biology LibreTexts Retrieved 19 April 2023 a href Template Cite book html title Template Cite book cite book a CS1 maint numeric names authors list link Phylogenetic Inference 15 February 2024 a href Template Cite book html title Template Cite book cite book a website ignored help Richard C Brusca amp Gary J Brusca 2003 Invertebrates 2nd ed Sunderland Massachusetts Sinauer Associates ISBN 978 0 87893 097 5 Bock W J 2004 Explanations in systematics Pp 49 56 In Williams D M and Forey P L eds Milestones in Systematics London Systematics Association Special Volume Series 67 CRC Press Boca Raton Florida Auyang Sunny Y 1998 Narratives and Theories in Natural History In Foundations of complex system theories in economics evolutionary biology and statistical physics Cambridge U K New York Cambridge University Press page needed a b c Rosenberg Michael 28 August 2001 Incomplete taxon sampling is not a problem for phylogenetic inference Proceedings of the National Academy of Sciences 98 19 10751 10756 Bibcode 2001PNAS 9810751R doi 10 1073 pnas 191248498 PMC 58547 PMID 11526218 a b c d e Rosenberg Michael Kumar Sudhir 1 February 2023 Taxon Sampling Bioinformatics and Phylogenetics Evolutionary Journal of the Linnean Society 52 1 119 124 doi 10 1080 10635150390132894 PMC 2796430 PMID 12554445 Retrieved 19 April 2023 Harper Douglas 2010 Phylogeny Online Etymology Dictionary Stuessy 2009 Blechschmidt Erich 1977 The Beginnings of Human Life Springer Verlag Inc p 32 The so called basic law of biogenetics is wrong No buts or ifs can mitigate this fact It is not even a tiny bit correct or correct in a different form making it valid in a certain percentage It is totally wrong Ehrlich Paul Richard Holm Dennis Parnell 1963 The Process of Evolution New York McGraw Hill p 66 Its shortcomings have been almost universally pointed out by modern authors but the idea still has a prominent place in biological mythology The resemblance of early vertebrate embryos is readily explained without resort to mysterious forces compelling each individual to reclimb its phylogenetic tree Bayes Mr Price Mr 1763 An Essay towards Solving a Problem in the Doctrine of Chances By the Late Rev Mr Bayes F R S Communicated by Mr Price in a Letter to John Canton A M F R S Philosophical Transactions of the Royal Society of London 53 370 418 doi 10 1098 rstl 1763 0053 Strickberger Monroe 1996 Evolution 2nd ed Jones amp Bartlett page needed The Theory of Evolution Teaching Company course Lecture 1 Darwin s Tree of Life Archived 13 March 2014 at the Wayback Machine Archibald J David 1 August 2009 Edward Hitchcock s Pre Darwinian 1840 Tree of Life Journal of the History of Biology 42 3 561 592 doi 10 1007 s10739 008 9163 y ISSN 1573 0387 PMID 20027787 S2CID 16634677 Archibald J David 2008 Edward Hitchcock s Pre Darwinian 1840 Tree of Life Journal of the History of Biology 42 3 561 92 CiteSeerX 10 1 1 688 7842 doi 10 1007 s10739 008 9163 y PMID 20027787 S2CID 16634677 Darwin Charles Wallace Alfred 1858 On the Tendency of Species to form Varieties and on the Perpetuation of Varieties and Species by Natural Means of Selection Journal of the Proceedings of the Linnean Society of London Zoology 3 9 45 62 doi 10 1111 j 1096 3642 1858 tb02500 x Dollo Louis 1893 Les lois de l evolution Bull Soc Belge Geol Paleont Hydrol 7 164 66 Galis Frietson Arntzen Jan W Lande Russell 2010 Dollo s Law and the Irreversibility of Digit Loss in Bachia Evolution 64 8 2466 76 discussion 2477 85 doi 10 1111 j 1558 5646 2010 01041 x PMID 20500218 S2CID 24520027 Retrieved 23 April 2023 Tillyard R J 2012 A New Classification of the Order Perlaria The Canadian Entomologist 53 2 35 43 doi 10 4039 Ent5335 2 S2CID 90171163 Hennig Willi 1950 Grundzuge einer Theorie der Phylogenetischen Systematik Basic features of a theory of phylogenetic systematics in German Berlin Deutscher Zentralverlag OCLC 12126814 page needed Wagner Warren Herbert 1952 The fern genus Diellia structure affinities and taxonomy University of California Publications in Botany 26 1 6 1 212 OCLC 4228844 Webster s 9th New Collegiate Dictionary full citation needed Cain A J Harrison G A 2009 Phyletic Weighting Proceedings of the Zoological Society of London 135 1 1 31 doi 10 1111 j 1469 7998 1960 tb05828 x The reconstruction of evolution in Abstracts of Papers Annals of Human Genetics 27 1 103 5 1963 doi 10 1111 j 1469 1809 1963 tb00786 x Camin Joseph H Sokal Robert R 1965 A Method for Deducing Branching Sequences in Phylogeny Evolution 19 3 311 26 doi 10 1111 j 1558 5646 1965 tb01722 x S2CID 20957422 Wilson Edward O 1965 A Consistency Test for Phylogenies Based on Contemporaneous Species Systematic Zoology 14 3 214 20 doi 10 2307 2411550 JSTOR 2411550 Hennig W 1966 Phylogenetic systematics Illinois University Press Urbana page needed Farris James S 1969 A Successive Approximations Approach to Character Weighting Systematic Zoology 18 4 374 85 doi 10 2307 2412182 JSTOR 2412182 a b Kluge A G Farris J S 1969 Quantitative Phyletics and the Evolution of Anurans Systematic Biology 18 1 1 32 doi 10 1093 sysbio 18 1 1 Quesne Walter J Le 1969 A Method of Selection of Characters in Numerical Taxonomy Systematic Zoology 18 2 201 205 doi 10 2307 2412604 JSTOR 2412604 Farris J S 1970 Methods for Computing Wagner Trees Systematic Biology 19 83 92 doi 10 1093 sysbio 19 1 83 Neyman Jerzy 1971 Molecular studies of evolution a source of novel statistical problems Statistical Decision Theory and Related Topics pp 1 27 doi 10 1016 B978 0 12 307550 5 50005 8 ISBN 978 0 12 307550 5 Fitch W M 1971 Toward Defining the Course of Evolution Minimum Change for a Specific Tree Topology Systematic Biology 20 4 406 16 doi 10 1093 sysbio 20 4 406 JSTOR 2412116 Robinson D F 1971 Comparison of labeled trees with valency three Journal of Combinatorial Theory Series B 11 2 105 19 doi 10 1016 0095 8956 71 90020 7 Kidd K K Sgaramella Zonta L A 1971 Phylogenetic analysis Concepts and methods American Journal of Human Genetics 23 3 235 52 PMC 1706731 PMID 5089842 Adams E N 1972 Consensus Techniques and the Comparison of Taxonomic Trees Systematic Biology 21 4 390 397 doi 10 1093 sysbio 21 4 390 Farris James S 1976 Phylogenetic Classification of Fossils with Recent Species Systematic Zoology 25 3 271 282 doi 10 2307 2412495 JSTOR 2412495 Farris J S 1977 Phylogenetic Analysis Under Dollo s Law Systematic Biology 26 77 88 doi 10 1093 sysbio 26 1 77 Nelson G 1979 Cladistic Analysis and Synthesis Principles and Definitions with a Historical Note on Adanson s Familles Des Plantes 1763 1764 Systematic Biology 28 1 21 doi 10 1093 sysbio 28 1 1 Gordon A D 1979 A Measure of the Agreement between Rankings Biometrika 66 1 7 15 doi 10 1093 biomet 66 1 7 JSTOR 2335236 Efron B 1979 Bootstrap methods another look at the jackknife Ann Stat 7 1 26 Margush T McMorris F 1981 Consensus trees Bulletin of Mathematical Biology 43 2 239 doi 10 1016 S0092 8240 81 90019 7 inactive 15 February 2024 a href Template Cite journal html title Template Cite journal cite journal a CS1 maint DOI inactive as of February 2024 link Sokal Robert R Rohlf F James 1981 Taxonomic Congruence in the Leptopodomorpha Re Examined Systematic Zoology 30 3 309 doi 10 2307 2413252 JSTOR 2413252 Felsenstein Joseph 1981 Evolutionary trees from DNA sequences A maximum likelihood approach Journal of Molecular Evolution 17 6 368 76 Bibcode 1981JMolE 17 368F doi 10 1007 BF01734359 PMID 7288891 S2CID 8024924 Hendy M D Penny David 1982 Branch and bound algorithms to determine minimal evolutionary trees Mathematical Biosciences 59 2 277 doi 10 1016 0025 5564 82 90027 X Lipscomb Diana 1985 The Eukaryotic Kingdoms Cladistics 1 2 127 40 doi 10 1111 j 1096 0031 1985 tb00417 x PMID 34965673 S2CID 84151309 Felsenstein J 1985 Confidence limits on phylogenies an approach using the bootstrap Evolution 39 4 783 791 doi 10 2307 2408678 JSTOR 2408678 PMID 28561359 Lanyon S M 1985 Detecting Internal Inconsistencies in Distance Data Systematic Biology 34 4 397 403 CiteSeerX 10 1 1 1000 3956 doi 10 1093 sysbio 34 4 397 Saitou N Nei M 1987 The neighbor joining method A new method for reconstructing phylogenetic trees Molecular Biology and Evolution 4 4 406 25 doi 10 1093 oxfordjournals molbev a040454 PMID 3447015 Bremer Kare 1988 The Limits of Amino Acid Sequence Data in Angiosperm Phylogenetic Reconstruction Evolution 42 4 795 803 doi 10 1111 j 1558 5646 1988 tb02497 x PMID 28563878 S2CID 13647124 Farris James S 1989 The Retention Index and the Rescaled Consistency Index Cladistics 5 4 417 419 doi 10 1111 j 1096 0031 1989 tb00573 x PMID 34933481 S2CID 84287895 Archie James W 1989 Homoplasy Excess Ratios New Indices for Measuring Levels of Homoplasy in Phylogenetic Systematics and a Critique of the Consistency Index Systematic Zoology 38 3 253 269 doi 10 2307 2992286 JSTOR 2992286 Bremer Kare 1990 Combinable Component Consensus Cladistics 6 4 369 372 doi 10 1111 j 1096 0031 1990 tb00551 x PMID 34933485 S2CID 84151348 D L Swofford and G J Olsen 1990 Phylogeny reconstruction In D M Hillis and G Moritz eds Molecular Systematics pages 411 501 Sinauer Associates Sunderland Mass Goloboff Pablo A 1991 Homoplasy and the Choice Among Cladograms Cladistics 7 3 215 232 doi 10 1111 j 1096 0031 1991 tb00035 x PMID 34933469 S2CID 85418697 Goloboff Pablo A 1991 Random Data Homoplasy and Information Cladistics 7 4 395 406 doi 10 1111 j 1096 0031 1991 tb00046 x S2CID 85132346 Goloboff Pablo A 1993 Estimating Character Weights During Tree Search Cladistics 9 1 83 91 doi 10 1111 j 1096 0031 1993 tb00209 x PMID 34929936 S2CID 84231334 Wilkinson M 1994 Common Cladistic Information and its Consensus Representation Reduced Adams and Reduced Cladistic Consensus Trees and Profiles Systematic Biology 43 3 343 368 doi 10 1093 sysbio 43 3 343 Wilkinson Mark 1995 More on Reduced Consensus Methods Systematic Biology 44 3 435 439 doi 10 2307 2413604 JSTOR 2413604 Li Shuying Pearl Dennis K Doss Hani 2000 Phylogenetic Tree Construction Using Markov Chain Monte Carlo Journal of the American Statistical Association 95 450 493 CiteSeerX 10 1 1 40 4461 doi 10 1080 01621459 2000 10474227 JSTOR 2669394 S2CID 122459537 Mau Bob Newton Michael A Larget Bret 1999 Bayesian Phylogenetic Inference via Markov Chain Monte Carlo Methods Biometrics 55 1 1 12 CiteSeerX 10 1 1 139 498 doi 10 1111 j 0006 341X 1999 00001 x JSTOR 2533889 PMID 11318142 S2CID 932887 Rannala Bruce Yang Ziheng 1996 Probability distribution of molecular evolutionary trees A new method of phylogenetic inference Journal of Molecular Evolution 43 3 304 11 Bibcode 1996JMolE 43 304R doi 10 1007 BF02338839 PMID 8703097 S2CID 8269826 Goloboff P 2003 Improvements to resampling measures of group support Cladistics 19 4 324 32 doi 10 1111 j 1096 0031 2003 tb00376 x hdl 11336 101057 S2CID 55516104 Li M Chen X Li X Ma B Vitanyi P M B December 2004 The Similarity Metric IEEE Transactions on Information Theory 50 12 3250 3264 doi 10 1109 TIT 2004 838101 S2CID 221927 Cilibrasi R Vitanyi P M B April 2005 Clustering by Compression IEEE Transactions on Information Theory 51 4 1523 1545 arXiv cs 0312044 doi 10 1109 TIT 2005 844059 S2CID 911 Pagel Mark 2017 Darwinian perspectives on the evolution of human languages Psychonomic Bulletin amp Review 24 1 151 157 doi 10 3758 s13423 016 1072 z ISSN 1069 9384 PMC 5325856 PMID 27368626 Heggarty Paul 2006 Interdisciplinary Indiscipline Can Phylogenetic Methods Meaningfully Be Applied to Language Data and to Dating Language PDF In Peter Forster Colin Renfrew eds Phylogenetic Methods and the Prehistory of Languages McDonald Institute Monographs McDonald Institute for Archaeological Research Archived from the original PDF on 28 January 2021 Retrieved 19 January 2021 a b Bowern Claire 14 January 2018 Computational Phylogenetics Annual Review of Linguistics 4 1 281 296 doi 10 1146 annurev linguistics 011516 034142 ISSN 2333 9683 Retzlaff Nancy Stadler Peter F 2018 Phylogenetics beyond biology Theory in Biosciences 137 2 133 143 doi 10 1007 s12064 018 0264 7 ISSN 1431 7613 PMC 6208858 PMID 29931521 Hoffmann Konstantin Bouckaert Remco Greenhill Simon J Kuhnert Denise 25 November 2021 Bayesian phylogenetic analysis of linguistic data using BEAST Journal of Language Evolution 6 2 119 135 doi 10 1093 jole lzab005 ISSN 2058 458X Spencer Matthew Davidson Elizabeth A Barbrook Adrian C Howe Christopher J 21 April 2004 Phylogenetics of artificial manuscripts Journal of Theoretical Biology 227 4 503 511 Bibcode 2004JThBi 227 503S doi 10 1016 j jtbi 2003 11 022 ISSN 0022 5193 PMID 15038985 Phylogenetics an overview ScienceDirect Topics www sciencedirect com Retrieved 28 April 2023 Colijn Caroline Gardy Jennifer 1 January 2014 Phylogenetic tree shapes resolve disease transmission patterns Evolution Medicine and Public Health 2014 1 96 108 doi 10 1093 emph eou018 ISSN 2050 6201 PMC 4097963 PMID 24916411 a b c Colijn Gardy Caroline Jennifer 9 June 2014 Phylogenetic Tree Shapes Resolve Disease Transmission Patterns Evolution Medicine and Public Health U S National Library of Medicine Evolution Medicine and Public Health 2014 1 96 108 doi 10 1093 emph eou018 PMC 4097963 PMID 24916411 a href Template Cite journal html title Template Cite journal cite journal a CS1 maint multiple names authors list link Bibliography editSchuh Randall T Brower Andrew V Z 2009 Biological Systematics principles and applications 2nd ed Ithaca Comstock Pub Associates Cornell University Press ISBN 978 0 8014 4799 0 OCLC 312728177 Forster Peter Renfrew Colin eds 2006 Phylogenetic Methods and the Prehistory of Languages McDonald Institute Press University of Cambridge ISBN 978 1 902937 33 5 OCLC 69733654 Baum David A Smith Stacey D 2013 Tree Thinking an introduction to phylogenetic biology Greenwood Village CO Roberts and Company ISBN 978 1 936221 16 5 OCLC 767565978 Stuessy Tod F 2009 Plant Taxonomy The Systematic Evaluation of Comparative Data Columbia University Press ISBN 978 0 231 14712 5 External links edit nbsp The dictionary definition of phylogenetics at Wiktionary Portal nbsp Evolutionary biology Retrieved from https en wikipedia org w index php title Phylogenetics amp oldid 1207741840, wikipedia, wiki, book, books, library,

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