一头公牛中的双相互易位杂合性

Double reciprocal translocation heterozygosity in a bull.

作者信息

De Schepper G G, Aalbers J G, Te Brake J H

出版信息

Vet Rec. 1982 Feb 27;110(9):197-9. doi: 10.1136/vr.110.9.197.

DOI:10.1136/vr.110.9.197

Abstract

A double reciprocal translocation has been found in a morphologically normal but infertile bull (Bos taurus), using trypsin-Giemsa banding. The karyotype of the bull can be written as: 60,XY,t(2q-;20q+),t(8q-;27q+). Cytophotometric studies supported the findings in the karyograms and identified the breakpoints in the chromosomes involved. The possible effect of this translocation heterozygosity on male fertility is discussed.

摘要

利用胰蛋白酶 - 吉姆萨显带技术，在一头形态正常但不育的公牛（Bos taurus）中发现了一种双相互易位。这头公牛的核型可写成：60,XY,t(2q-;20q+),t(8q-;27q+)。细胞光度学研究支持了核型图中的结果，并确定了相关染色体的断点。本文讨论了这种易位杂合性对雄性生育力的可能影响。