TAILIEUCHUNG - Báo cáo sinh học: " Identification of chromosomes involved in a Robertsonian translocation in cattle"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Identification of chromosomes involved in a Robertsonian translocation in cattle | 555 Genet. Sei. Evol. 1989 21 555-560 Elsevier INRA Note Identification of chromosomes involved in a Robertsonian translocation in cattle . Cribiu1 M. Matejka2 R. Darre2 V. Durand1 . Berland2 and A. Bouvet1 1 Institut National de la Recherche Agronomỉque laboratoire de cytogénétique centre de recherches de Jouy-en-Josas 78350 Jouy-en-Josas 2 Ecole Nationale Vétérinaire de Toulouse laboratoire de cytogénétỉque 23 chemin des Capelles 31076 Toulouse Cédex France received 29 June 1989 accepted 30 August 1989 Summary - The chromosomes involved in the robertsonian translocation described after classical Giemsa staining by Darre etal. 1974 were determined using G GTG R RBA and C CBG banding techniques. The chromosomes in question were identified as chromosomes 9 and 23. cattle chromosome robertsonian translocation Résumé - Les chromosomes impliqués dans une translocation robertsonienne décrite tout d abord en coloration conventionnelle par Darre et al. 1974 ont été determines ò I aide des techniques de marquage G GTG R RBA et G CBG . Les chromosomes concerns sont le 9 et le 23. boeuf - chromosome - translocation robertsonienne INTRODUCTION In the field of animal cytogenetics cattle are the most extensively studied livestock species with about 20000 karyotyped animals. Chromosomal abnormalities reported in cattle usually involve robertsonian translocations among which the most widespread is the 1 29 translocation observed for the first time by Gustavs-son and Rockborn 1964 in the Swedish Red and White cattle and reported later in various breeds worldwide Popescu 1977 . Robertsonian translocations involving other autosomes have also been reported Berland et al. 1988 . However in contrast to the 1 29 translocation the other translocations have been reported only as isolated cases and for those described during the early seventies prior to the development of reliable banding methods the chromosomes involved have not been identified precisely. For example in 1974 a .

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