Rabicano, sometimes called white ticking, is a horse coat color characterized by limited roaning in a specific pattern: its most minimal form is expressed by white hairs at the top of a horse's tail,[1] often is expressed by additional interspersed white hairs seen first at the flank, then other parts of the body radiating out from the flank, where the white hairs will be most pronounced.[2] Rabicano is distinct from true roan, which causes evenly interspersed white hairs throughout the body, except for solid-colored head and legs.[1]
The word, "rabicano" is of Spanish origin - rabo meaning "tail" and cano meaning "white" - thus, it described a horse with white hairs in its tail.[3] The word appears very early in epic poems in Italian literature: Argalia, a character in Orlando Innamorato (1495), rides a horse named "Rabicano". So too does Astolfo. In Italian, the term simply means "roan" and might therefore have been a descriptive name.
Characteristics
This chestnut rabicano has white hairs arranged in bands or rings around the base of the tail, a trait called a coon tail or skunk tail
The characteristics most often associated with the rabicano pattern are white hairs at the tailhead and the flank, where the body of the horse is joined by the hindquarters.[4] Like other patterns and colors, the expression of the rabicano trait varies. Most of the factors affecting these variations are unknown, however, it is known that horses with a chestnut or chestnut-based coat express white patterns such as rabicano more readily; that is, they tend to have more white. Minimal expression may include a few white hairs in those areas, but is often not mentioned in descriptions of an individual horse's color.[4] Rabicano is a white pattern that falls into the category of roaning or scattered white hairs, the genetics of which are not yet fully understood,[5] but are apparently a different genetic mechanism from true roan.[1]
Classic Rabicano markings on flanks and a skunk tail
The original definition of "rabicano" referred to the presence of white hairs in the base of the tail, a characteristic called a "skunk" or coon tail.[6] The term "coon tail" is associated with white hairs in the form of striping at the tailhead.[4] The sides of the tail at the tailhead may have much white hair. Extensively marked rabicanos sometimes exhibit striations in their pattern on the ribs, giving them a striped appearance.[7]
Prevalence and inheritance
Rabicano on a bay most often is exhibited on the mane and tail
"Skunk tail" white hairs on a bay horse
The rabicano pattern is thought to be a dominant gene in some families,[4] however other forms of white ticking not following the rabicano pattern may exist and be controlled by separate mechanisms. Rabicano is present even in breeds which do not possess any true roan individuals, such as Arabian horses.[8][9] In the Arabian, Rabicano patterning is even defined as "roan."[4] Rabicano may occur on any base color and may occur in conjunction with any other white pattern, including true roan or gray.
Higher expression of the rabicano pattern on the flanks may produce a coat easy to mistake for true roan. However, in highly expressed rabicanos, the distribution of white hairs along the barrel may produce faint striping or stippling over the ribs, which is not seen in true roans. Furthermore, the skin of some rabicanos may be slightly mottled with pink, particularly on the abdomen and groin.[10] This trait is not seen in true roans, and suggests that, like the white hairs associated with other white markings and patterns, the white hairs of a rabicano may be rooted in unpigmented skin cells. However, the genetic and developmental controls of such roaning are poorly understood,[11] and has not yet been formally studied.[4]
While rabicano itself does not produce white markings on the face and legs, it can be confused with some of the numerous sabino patterns, one of which has been mapped to the KIT gene.[citation needed] Other color patterns mapped to KIT include tobiano and true roan.[12][13][14] This may explain the close association between rabicano and sabino, which are often observed in the same horse.[citation needed]
This horse could be either roan or rabicano; lack of white hairs on forehand and presence of skunk tail suggest rabicano, but overall body pattern is more typical of a roan.
Rarely is rabicano patterning extensive enough to be confused with true roan.[4] It is, however, possible for a horse to carry both rabicano and roan genes.[1] Rabicanos are not true roans and can be distinguished from true roans by the following:
Roaning on rabicanos is centralized at the junction of the stifle and the flank; true roan is evenly distributed over the whole body except the points.
Rabicanos usually have skunk tails or rings of white hairs in the tail, while true roans do not.
Rabicano roaning often spreads, while true roans usually become darker.
Rabicanos do not develop corn marks when their skin is damaged.
Sabino patterning usually is expressed with high white legs markings with white sometimes extending onto the belly, face, and chin; sabinos often lack the white hairs at the base of the tail that characterize rabicano. A horse may carry the genes for both patterns, however.[1]
^ abcdeCaudill, Andrea (25 July 2010). . America's Horse Daily. America's Horse Daily. Archived from the original on 22 September 2010. Retrieved 28 January 2014.
^Price, Steven D.; Jessie Shiers; William Steinkraus (2007). The Lyons Press Horseman's Dictionary: Full Explanations of More than 2,000 Terms and Phrases Used by Horsemen. Don Burt. Globe Pequot. p. 175. ISBN978-1-59921-036-0. rabicano: A coat color in which a few, scattered white hairs appear amid a darker-colored background, usually on the hindquarters and dock
^Juan de la Cruz Puig. Antologia de Poetas Argentinos,1910. pg. 131. "Rabicano: caballo que tiene cerdas blancas á la raíz de la cola." [Rabicano: a horse that has white hairs at the root of the tail]
^ abcdefgSponenberg, Dan Phillip (2003-04-11). "4/Patterns of White Occurring on Base Colors". Equine Coat Color Genetics (2 ed.). Wiley-Blackwell. p. 69. ISBN978-0-8138-0759-1. Retrieved 2008-08-03.
^Veterinary Genetics Laboratory. "Introduction to Coat Color Genetics". The Regents of the University of California. Retrieved 2008-06-04.
^Behning, Laura. . Morgan Colors. Archived from the original on 2008-09-14. Retrieved 2008-08-03.
^Peters, Anne (2002-05-04). "A roan by any other name is a roan". Thoroughbred Times. Lexington: Thoroughbred Times Co. Inc. Retrieved 2008-06-04.
^Sponenberg 2003, p. 70, indicates that roan has reappeared in Thoroughbreds via a new mutation in a single horse
^Overton, Rebecca (2004-12-15). (PDF). Quarter Horse News. American Quarter Horse Association. pp. 24–6. Archived from the original (PDF) on 2007-09-27. Retrieved 2008-06-04.
^B. Kostelnik. "Rabicano". The Horse Colors Site. Hippo-Logistics. Retrieved 2008-08-03.
^"Introduction to Coat Color Genetics". UC Davis. Retrieved 2008-08-03. The inheritance of scattered white hairs, sometimes called roaning, is not defined.
^Marklund, S; M Moller; K Sandberg; L Andersson (1999). "Close association between sequence polymorphism in the KIT gene and the roan coat color in horses". Mammalian Genome. 10 (3): 283–288. doi:10.1007/s003359900987. PMID 10051325. S2CID 32790547.
^brooks, SA; TL Lear; DL Adelson; E Bailey (2007). "A chromosome inversion near the KIT gene and the Tobiano spotting pattern in horses". Cytogenetic and Genome Research. 119 (3–4): 225–230. doi:10.1159/000112065. PMID 18253033. S2CID 22835035.
^Andersson, L; K Sandberg (March 1982). "A linkage group composed of three coat color genes and three serum protein loci in horses". Journal of Heredity. 73 (2): 91–4. PMID 7096983.
January 06, 2023
rabicano, sometimes, called, white, ticking, horse, coat, color, characterized, limited, roaning, specific, pattern, most, minimal, form, expressed, white, hairs, horse, tail, often, expressed, additional, interspersed, white, hairs, seen, first, flank, then, . Rabicano sometimes called white ticking is a horse coat color characterized by limited roaning in a specific pattern its most minimal form is expressed by white hairs at the top of a horse s tail 1 often is expressed by additional interspersed white hairs seen first at the flank then other parts of the body radiating out from the flank where the white hairs will be most pronounced 2 Rabicano is distinct from true roan which causes evenly interspersed white hairs throughout the body except for solid colored head and legs 1 An extensively expressed rabicano Arabian horse Classic skunk tail Contents 1 Etymology 2 Characteristics 3 Prevalence and inheritance 4 Vs roan 5 Vs sabino 6 See also 7 ReferencesEtymology EditThe word rabicano is of Spanish origin rabo meaning tail and cano meaning white thus it described a horse with white hairs in its tail 3 The word appears very early in epic poems in Italian literature Argalia a character in Orlando Innamorato 1495 rides a horse named Rabicano So too does Astolfo In Italian the term simply means roan and might therefore have been a descriptive name Characteristics Edit This chestnut rabicano has white hairs arranged in bands or rings around the base of the tail a trait called a coon tail or skunk tail The characteristics most often associated with the rabicano pattern are white hairs at the tailhead and the flank where the body of the horse is joined by the hindquarters 4 Like other patterns and colors the expression of the rabicano trait varies Most of the factors affecting these variations are unknown however it is known that horses with a chestnut or chestnut based coat express white patterns such as rabicano more readily that is they tend to have more white Minimal expression may include a few white hairs in those areas but is often not mentioned in descriptions of an individual horse s color 4 Rabicano is a white pattern that falls into the category of roaning or scattered white hairs the genetics of which are not yet fully understood 5 but are apparently a different genetic mechanism from true roan 1 Classic Rabicano markings on flanks and a skunk tail The original definition of rabicano referred to the presence of white hairs in the base of the tail a characteristic called a skunk or coon tail 6 The term coon tail is associated with white hairs in the form of striping at the tailhead 4 The sides of the tail at the tailhead may have much white hair Extensively marked rabicanos sometimes exhibit striations in their pattern on the ribs giving them a striped appearance 7 Prevalence and inheritance Edit Rabicano on a bay most often is exhibited on the mane and tail Skunk tail white hairs on a bay horse The rabicano pattern is thought to be a dominant gene in some families 4 however other forms of white ticking not following the rabicano pattern may exist and be controlled by separate mechanisms Rabicano is present even in breeds which do not possess any true roan individuals such as Arabian horses 8 9 In the Arabian Rabicano patterning is even defined as roan 4 Rabicano may occur on any base color and may occur in conjunction with any other white pattern including true roan or gray Higher expression of the rabicano pattern on the flanks may produce a coat easy to mistake for true roan However in highly expressed rabicanos the distribution of white hairs along the barrel may produce faint striping or stippling over the ribs which is not seen in true roans Furthermore the skin of some rabicanos may be slightly mottled with pink particularly on the abdomen and groin 10 This trait is not seen in true roans and suggests that like the white hairs associated with other white markings and patterns the white hairs of a rabicano may be rooted in unpigmented skin cells However the genetic and developmental controls of such roaning are poorly understood 11 and has not yet been formally studied 4 While rabicano itself does not produce white markings on the face and legs it can be confused with some of the numerous sabino patterns one of which has been mapped to the KIT gene citation needed Other color patterns mapped to KIT include tobiano and true roan 12 13 14 This may explain the close association between rabicano and sabino which are often observed in the same horse citation needed Vs roan EditSee also Roan horse Classic Flank ticking This horse could be either roan or rabicano lack of white hairs on forehand and presence of skunk tail suggest rabicano but overall body pattern is more typical of a roan Rarely is rabicano patterning extensive enough to be confused with true roan 4 It is however possible for a horse to carry both rabicano and roan genes 1 Rabicanos are not true roans and can be distinguished from true roans by the following Roaning on rabicanos is centralized at the junction of the stifle and the flank true roan is evenly distributed over the whole body except the points Rabicanos usually have skunk tails or rings of white hairs in the tail while true roans do not Rabicano roaning often spreads while true roans usually become darker Rabicanos do not develop corn marks when their skin is damaged Vs sabino EditSee also Sabino horse Sabino patterning usually is expressed with high white legs markings with white sometimes extending onto the belly face and chin sabinos often lack the white hairs at the base of the tail that characterize rabicano A horse may carry the genes for both patterns however 1 See also EditEquine coat color Equine coat color geneticsReferences Edit Wikimedia Commons has media related to Rabicano a b c d e Caudill Andrea 25 July 2010 Skunk Tailed America s Horse Daily America s Horse Daily Archived from the original on 22 September 2010 Retrieved 28 January 2014 Price Steven D Jessie Shiers William Steinkraus 2007 The Lyons Press Horseman s Dictionary Full Explanations of More than 2 000 Terms and Phrases Used by Horsemen Don Burt Globe Pequot p 175 ISBN 978 1 59921 036 0 rabicano A coat color in which a few scattered white hairs appear amid a darker colored background usually on the hindquarters and dock Juan de la Cruz Puig Antologia de Poetas Argentinos 1910 pg 131 Rabicano caballo que tiene cerdas blancas a la raiz de la cola Rabicano a horse that has white hairs at the root of the tail a b c d e f g Sponenberg Dan Phillip 2003 04 11 4 Patterns of White Occurring on Base Colors Equine Coat Color Genetics 2 ed Wiley Blackwell p 69 ISBN 978 0 8138 0759 1 Retrieved 2008 08 03 Veterinary Genetics Laboratory Introduction to Coat Color Genetics The Regents of the University of California Retrieved 2008 06 04 Behning Laura Rabicano Roan Flaxen and Frame Overo Morgan Horses Morgan Colors Archived from the original on 2008 09 14 Retrieved 2008 08 03 Peters Anne 2002 05 04 A roan by any other name is a roan Thoroughbred Times Lexington Thoroughbred Times Co Inc Retrieved 2008 06 04 Sponenberg 2003 p 70 indicates that roan has reappeared in Thoroughbreds via a new mutation in a single horse Overton Rebecca 2004 12 15 In The Genes PDF Quarter Horse News American Quarter Horse Association pp 24 6 Archived from the original PDF on 2007 09 27 Retrieved 2008 06 04 B Kostelnik Rabicano The Horse Colors Site Hippo Logistics Retrieved 2008 08 03 Introduction to Coat Color Genetics UC Davis Retrieved 2008 08 03 The inheritance of scattered white hairs sometimes called roaning is not defined Marklund S M Moller K Sandberg L Andersson 1999 Close association between sequence polymorphism in the KIT gene and the roan coat color in horses Mammalian Genome 10 3 283 288 doi 10 1007 s003359900987 PMID 10051325 S2CID 32790547 brooks SA TL Lear DL Adelson E Bailey 2007 A chromosome inversion near the KIT gene and the Tobiano spotting pattern in horses Cytogenetic and Genome Research 119 3 4 225 230 doi 10 1159 000112065 PMID 18253033 S2CID 22835035 Andersson L K Sandberg March 1982 A linkage group composed of three coat color genes and three serum protein loci in horses Journal of Heredity 73 2 91 4 PMID 7096983 Retrieved from https en wikipedia org w index php title Rabicano amp oldid 1124991226, wikipedia, wiki, book, books, library,
