TAILIEUCHUNG - báo cáo khoa học: "C-band variants of telocentric chromosomes in swine : evidence and inheritance studies"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: C-band variants of telocentric chromosomes in swine : evidence and inheritance studies | Génét. Sél. Evol. 1983 15 4 469-478 C-band variants of telocentric chromosomes in swine evidence and inheritance studies 1 M. SWITONSKI R. FRIES and G. STRANZINGER Swiss Federal Institute of Technology Zurich Institute of Animal Production Breeding Section CH-8092 Zurich Summary Using Q- and C-band sequential staining variability in the size of C-bands was found in several pig chromosome pairs. Distinct variability in the size of C-bands was found in pairs 16 17 and 18 and suspected in pairs 13 and 15. For pairs 16 17 and 18 inheritance studies in 11 families were carried out. It was found that C-band variants were stable within individuals and were inherited according to the Mendelian principle. The phenomenon of this C-band polymorphism in relation to its importance and application for cytogenetic investigations and animal breeding is discussed. Key words Swine chromosomes c-bands polymorphism. Resume Les variants des bandes c de chromosomes télocentriques chez le pore description et mode de transmission Grace à I utilisation des methodes de coloration séquentielle des bandes Q et c on a pu mettre en evidence une variabilité de taille des bandes c de differentes paires de chromosomes du pore. De nettes variations dans la taille des bandes c ont été observées au niveau des paires chromosomiques 16 17 et 18 et soụpẹonnệes au niveau des paires 13 et 15. Une analyse génétique des variations des bandes c des paires 16 17 et 18 a été entreprise dans 11 families. Il apparait que les variants observes sont stables chez les individus et se transmettent selon un mode mendelien. L article discute 1 intérêt et les applications de ce polymorphisme des bandes c en cytogénétique et selection animate. Mots clés Porcins cytogénétique bandes c polymorphisme. I This work was supported by the Schweizerische Arbeitsgemeinschaft fur Kiinstliche Besamung Brugg and a fellowship of the ETH Ziirich. Present address Academy of Agriculture Department of Genetics and Animal Breeding Wofynska

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