我国牛科（Bovidae）中3种动物的染色体组型比较分析

Comparative Study of Three Zoons in Chinese Bovidae on Karyatype

比较分析我国牛科中３种动物（即羚牛、绵羊、黄牛）的染色体组型，从染色体数目和形态上比较它们之间的差异，并讨论这３种动物彼此之间的进化亲缘关系和进行杂交育种的可能性，为畜牧育种培养新类型提供细胞遗传学的依据。

The karyotype of Chinese budercus taxicolor,sheep and yellow cattle is compared.The re-sult shows that the number of chromosome arms and sex chromosome are eqtial and same in budercus taxicolor and sheep, although sheep have more submetacentrir chromosome (only one pair)than bud-ercus taxicolor. In cattle are all subaercentic chromosome. Their sex chromosomes are different fromthose of budercus taxicolor.So budercus taxicolor is closer to sheep than to cattle in blood relation-ship.