TAILIEUCHUNG - Báo cáo sinh học: "Dominant curly coat in horses"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Dominant curly coat in horses | 257 Genet Sei Evol 1990 22 257-260 Elsevier INRA Note Dominant curly coat in horses DP Sponenberg Virginia-Maryland. Regional College of Veterinary Medicine _ Department of Pathology Virginia Tech Blacksburg VA 2406I USA Received 18 January 1989 accepted 20 December 1989 Summary - Records from the American Bashkir Curly Horse Registry indicate that of 457 registered horses 25 had no curly-coated parents and this occurred in purebreds of breeds where curliness is rare 224 had 1 curly coated parent 122 had 2 curly coated parents and 86 had parents of unknown status. Complete production records on some individuals have revealed that matings between curly coated horses produced 47 curly coated and 11 normal coated offspring. Matings between curly and normal coated horses produced 29 curly and 17 normal coated offspring. The results are consistent with a dominant gene causing curly coat in horses although a separate previously documented recessive gene for curliness also exists. The symbol Crd for dominant curliness is suggested for the dominant gene. horse curly coat Resume Dominance de la robe à polls bouclés chez le cheval . L analyse des 457 dossiers de I American Bashkir Curly Horse Registry a montré que 25 chevaux provenaient de parents sans robe bouclée 224 avaient un parent à robe bouclee 122 avaient les deux parents à robe bọuclée et 86 provenaient de parents chez lesquels cette information étaịt inconnue. Les 25 chevaux issus de parents sans robe bouclée appartenaient a des races OÙ la robe bouclée est rare. Une étude détaứlée de certains dossiers a révélé que I accouplement entre chevaux à robe bouclée a produit 47 chevaux à robe bouclée et 11 chevaux à robe normale tandis que I accouplement entre chevaux à robe boucléeet chevaux à robe normale a produit 29 chevaux à robe bouclée et 17 à robe normale. Ces résultats indiquent la presence d un gene dominant causant la robe bouclée bien qu un gene rdcessif ait éié décrit anterieurement. Le symbol Crd est suggéré

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