TAILIEUCHUNG - Báo cáo sinh học: "Cytogenetic investigation in Saanen and Alpine artificial insemination bucks."

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Cytogenetic investigation in Saanen and Alpine artificial insemination bucks. | 449 Genet Sei Evol 1991 23 449-454 Elsevier INRA Note Cytogenetic investigation in Saanen and Alpine artificial insemination bucks. Identification of a Robertsonian translocation E Guillemot1 F Gary HM Berland1 V Durand2 R Darré1 EP Cribiu2 1 Ecole Nationale Vétérinaire de Toulouse Laboratoire INRA de Cytogénétique 23 chemin des Capelles F 31076 Toulouse Cedex 2 Institut National de la Recherche Agronomique Laboratoire de Cytogénétique Centre de Recherche de Jouy 78352 Jouy-en-Josas Cedex France Received 21 June 1991 accepted 23 July 1991 Summary - The cytogenetic study of 224 Al Saanen and Alpine he-goats revealed the presence of a Saanen animal carrying a Robertsonian translocation. The chromosomes involved in this translocation were determined using G GTG and c CBG banding techniques. The chromosomes in question were identified as chromosomes 6 and 15. goat chromosome Robertsonian translocation Resume Etude cytogénétique des boucs d insemination artificielle de races Saanen et Alpine. Mise en evidence d une translocation robertsonienne. L étude cytogénétique de 224 boucs d insemination artificielle de races Saanen et Alpine a permis de mettre en evidence la presence d un animal de race Saanen porteur d une translocation robertson-ienne. Les chromosomes impliqués dans cette translocation ont été determines à I aide des techniques de marquage G GTG et c CBG . Les chromosomes concernés sont le 6 et le 15. caprin chromosome translocation robertsonienne Correspondence and reprints 450 E Guillemot et al INTRODUCTION In domesticated species numerical chromosome aberrations are readily eliminated by natural selection whereas structural abnormalities may give rise to polymorphic systems whose deleterious effects on fertility have been established in cattle Gustavsson 1969 Refsdal 1976 Kovacks and Csulky 1980 . In goats the most widespread structural aberrations are Robertsonian translocations Cribiu and Lherm 1986 . Since these translocations are widespread in the Saanen

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