青海黑白花奶牛血清亲血色蛋白的多态性

Polymorphism of Serum Haptoglobin in Black-white Cow in Qinghai Province

采用聚丙烯酰胺凝胶圆盘电泳法对西宁地区１６２头青海黑白花奶牛血清亲血色蛋白的多态性进行了研究。结果查明：血清亲血色蛋白有Ｈｐ１－１，Ｈｐ１－２和Ｈｐ２－２三种表型，其中Ｈｐ１－１为优势表型（７４．３８％）。根据Ｈｐ表型受一对共显性等位基因Ｈｐ￣１和Ｈｐ￣２控制的假设，其等位基因频率分别为０．８２５０和０．１７５０。

The polymorphism of serum haptoglobin was investigated in the blood samples collected from 162 Black-white cows in Xining area of Qinghai province by means of a poly-acrylamide gel electrophoresis disc. The results showed that there were three phenotypesHp1-1,Hp1-2 and Hp2-2 on a locus of serum haptoglobin and Hp1-1 type was a preponderantphenotype(74. 38%).According to a hypothesis that the phenotypes of serum haptoglobinwere controlled by a pair of codominance allele,the frequencies of Hp￣1 and Hp￣2 alleles couldbe 0. 8250 and 0. 1750 resp.