Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: A cytogenetic survey was carried out on fattening male and female pigs of different lines in a local herd and on | Génét. Sél. Evol. 1986 18 4 367-374 A Robertsonian translocation in swine M. SCHWERIN D. GOLISCH E. RITTER Research Centre of Animal Production Dummerstorf-Rostock 2551 Dummerstorf German Democratic Republic Summary A cytogenetic survey was carried out on fattening male and female pigs of different lines in a local herd and on . boars of German Democratic Republic. In 5 of 66 fattening animals and 4 of 461 . boars analysed a Robertsonian translocation was observed. The translocation was identified as a 13 17 fusion translocation by the G-banding technique. These animals were translocation heterozygotes with 2n 37 XX or XY t 13 q 17q . The results obtained are discussed. Key words Fusion translocation swine. Resume Une translocation Robertsonienne chez le pore domestique Une étude cytogénétique a été réalisée en République Démocratique Allemande sur des pores males et femelies à 1 engraissement appartenant à differentes lignées et sur des verrats d insémina-tion artificielle. Une translocation Robertsonienne a été mise en évidence chez 5 des 66 animaux à 1 engraissement et chez 4 des 461 verrats d insemination artificielle. Cette translocation a été identifiee par la methode des bandes G comme une translocation de type fusion 13 17. Les animaux étaient porteurs d une translocation à 1 état heterozygote avec 2n 37 XX OU XY t 13q 17q . Les résultats obtenus sont discutés. Mots clés Translocation Robertsonienne pore. I. Introduction Robertsonian translocations are distributed widely in cattle. This type of chromosome aberration was first reported as the 1 29 translocation which resulted from a centric fusion between the largest and the smallest autosomes in the Swedish Red and White cattle Gustavsson Rockborn 1964 . Since then the same or other types of Robertsonian translocation have been found in many cattle breeds. In contrast in swine 368 M. SCHWERIN D. GOLISCH E. RITTER reciprocal translocations are more common. So in the last ten years several types of .
