Brassicoraphanus is any intergeneric hybrid between the genera Brassica (cabbages, etc.) and Raphanus (radish). The name comes from the combination of the genus names. Both diploid hybrids and allopolyploid hybrids are known and share this name.
Early experimental crosses between species of these two genera had been sterile or nearly sterile, but large-scale experiments by Soviet agronomist Georgi Dmitrievich Karpechenko using Raphanus sativus and Brassica oleracea were remarkable because some of the plants produced hundreds of seeds. The second generation were allopolyploids, the result of gametes with doubled chromosome numbers.[1][2][3] As Karpechenko realized, this process had created a new species, and it could justifiably be called a new genus, and proposed the name Raphanobrassica for them, but the earlier name Brassicoraphanus has priority. Plants of this parentage are now known as radicole.[4]
Two other fertile forms of Brassicoraphanus are known by the following informal names:
The Raparadish group are allopolyploid hybrids between Raphanus sativus and Brassica rapa, used as fodder crops
The Radicole group are allopolyploid hybrids between Raphanus sativus and Brassica oleracea, used as fodder crops
Currently, it is thought that a great part of the flowering plants have some hybridization and polyploidization among their ancestors.[6]
ReferencesEdit
^Karpechenko, G. D. (December 1928). "Polyploid hybrids of Raphanus sativus X Brassica oleracea L.". Bulletin of Applied Botany. 17: 305–408.
^Karpechenko, G. D. (1989) [1928]. "Polyploid hybrids of Raphanus sativus L. X Brassica oleracea L.". In Janick, J. (ed.). Classic papers in horticultural science. The Blackburn Press. pp. 442–525. ISBN9781930665064.
^Karpechenko, G. D. (December 1928). "Polyploid hybrids of Raphanus sativus X Brassica oleracea L.". Zeitschrift für Induktive Abstammungs- und Vererbungslehre. 48 (1): 1–85. doi:10.1007/bf01740955. ISSN 1617-4615. S2CID 116381242.
^Shemilt, L. W., ed. (1983). Chemistry and world food supplies : the new frontiers, Chemrawn II : invited papers presented at the International Conference on Chemistry and World Food Supplies, Manila, Philippines, 6-10 December 1982 (1st ed.). Oxford: Pergamon Press. p. 573. ISBN0080292437. OCLC 9557528.
^Choudhary, B. R.; Joshi, P.; Singh, K. (2000-10-10). "Synthesis, morphology and cytogenetics of Raphanofortii (TTRR, 2n = 38): a new amphidiploid of hybrid Brassica tournefortii (TT, 2n = 20) × Raphanus caudatus (RR, 2n=18)". Theoretical and Applied Genetics. 101 (5–6): 990–999. doi:10.1007/s001220051572. ISSN 0040-5752. S2CID 22139768.
^Otto, Sarah P.; Whitton, Jeannette (2000). "Polyploidy: incidence and evolution". Annual Review of Genetics. 34: 401–437. doi:10.1146/annurev.genet.34.1.401. PMID 11092833.
BibliographyEdit
Terasawa, Y. (1933). "Crossing between Brassico-raphanus and B. chinensis and Raphanus sativus". Japanese Journal of Genetics. 8 (4): 229–230. doi:10.1266/jjg.8.229.
Lee, Soo-Seong; Lee, Sun-Ae; Yang, Jungmin; Kim, Jongkee (2010-11-27). "Developing stable progenies of ×Brassicoraphanus, an intergeneric allopolyploid between Brassica rapa and Raphanus sativus, through induced mutation using microspore culture". Theoretical and Applied Genetics. 122 (5): 885–891. doi:10.1007/s00122-010-1494-3. ISSN 0040-5752. PMID 21113703. S2CID 22306496.
External linksEdit
October 20, 2023
brassicoraphanus, intergeneric, hybrid, between, genera, brassica, cabbages, raphanus, radish, name, comes, from, combination, genus, names, both, diploid, hybrids, allopolyploid, hybrids, known, share, this, name, scientific, classificationkingdom, plantae, u. Brassicoraphanus is any intergeneric hybrid between the genera Brassica cabbages etc and Raphanus radish The name comes from the combination of the genus names Both diploid hybrids and allopolyploid hybrids are known and share this name BrassicoraphanusScientific classificationKingdom Plantae unranked Angiosperms unranked Eudicots unranked RosidsOrder BrassicalesFamily BrassicaceaeGenus BrassicoraphanusSageretSynonymsRaphanobrassicaEarly experimental crosses between species of these two genera had been sterile or nearly sterile but large scale experiments by Soviet agronomist Georgi Dmitrievich Karpechenko using Raphanus sativus and Brassica oleracea were remarkable because some of the plants produced hundreds of seeds The second generation were allopolyploids the result of gametes with doubled chromosome numbers 1 2 3 As Karpechenko realized this process had created a new species and it could justifiably be called a new genus and proposed the name Raphanobrassica for them but the earlier name Brassicoraphanus has priority Plants of this parentage are now known as radicole 4 Two other fertile forms of Brassicoraphanus are known by the following informal names The Raparadish group are allopolyploid hybrids between Raphanus sativus and Brassica rapa used as fodder crops The Radicole group are allopolyploid hybrids between Raphanus sativus and Brassica oleracea used as fodder crops Raphanofortii is the allopolyploid hybrid between Brassica tournefortii and Raphanus caudatus 5 Currently it is thought that a great part of the flowering plants have some hybridization and polyploidization among their ancestors 6 References Edit Karpechenko G D December 1928 Polyploid hybrids of Raphanus sativus X Brassica oleracea L Bulletin of Applied Botany 17 305 408 Karpechenko G D 1989 1928 Polyploid hybrids of Raphanus sativus L X Brassica oleracea L In Janick J ed Classic papers in horticultural science The Blackburn Press pp 442 525 ISBN 9781930665064 Karpechenko G D December 1928 Polyploid hybrids of Raphanus sativus X Brassica oleracea L Zeitschrift fur Induktive Abstammungs und Vererbungslehre 48 1 1 85 doi 10 1007 bf01740955 ISSN 1617 4615 S2CID 116381242 Shemilt L W ed 1983 Chemistry and world food supplies the new frontiers Chemrawn II invited papers presented at the International Conference on Chemistry and World Food Supplies Manila Philippines 6 10 December 1982 1st ed Oxford Pergamon Press p 573 ISBN 0080292437 OCLC 9557528 Choudhary B R Joshi P Singh K 2000 10 10 Synthesis morphology and cytogenetics of Raphanofortii TTRR 2n 38 a new amphidiploid of hybrid Brassica tournefortii TT 2n 20 Raphanus caudatus RR 2n 18 Theoretical and Applied Genetics 101 5 6 990 999 doi 10 1007 s001220051572 ISSN 0040 5752 S2CID 22139768 Otto Sarah P Whitton Jeannette 2000 Polyploidy incidence and evolution Annual Review of Genetics 34 401 437 doi 10 1146 annurev genet 34 1 401 PMID 11092833 Bibliography EditTerasawa Y 1933 Crossing between Brassico raphanus and B chinensis and Raphanus sativus Japanese Journal of Genetics 8 4 229 230 doi 10 1266 jjg 8 229 Lee Soo Seong Lee Sun Ae Yang Jungmin Kim Jongkee 2010 11 27 Developing stable progenies of Brassicoraphanus an intergeneric allopolyploid between Brassica rapa and Raphanus sativus through induced mutation using microspore culture Theoretical and Applied Genetics 122 5 885 891 doi 10 1007 s00122 010 1494 3 ISSN 0040 5752 PMID 21113703 S2CID 22306496 External links EditObserved Instances of Speciation Retrieved from https en wikipedia org w index php title Brassicoraphanus amp oldid 1021958321, wikipedia, wiki, book, books, library,
