摘要
采用聚丙烯酰胺凝胶电泳法对246只青海藏羊的血样进行了血清淀粉酶多态性的研究。结果发现:①藏羊的血清淀粉酶有三种同工酶:AMY1,AMY2和AMY3,但只有AMY2具有多态性;②AMY2位点上存在AMY2A和AMY2O两种表型,其表型频率分别为25.61%和74.39%;③根据绵羊AMY2受一对等位基因AMY2 ̄A和AMY2 ̄0的支配,AMY2 ̄A对AMY2 ̄0呈显性的假说,其等位基因频率分别为0.1375和0.8625。
The polymorphism of serum amylase was investigated in 246 blood samplescollected from Qinghai Tibetan-sheep by means of a polyacrylamide gel electrophoresis.Theresults were as follows:(1)There were three isozvmes of serum amylase:AMYI,AMY2 andAMY3,but onlv AMY2 existed the polymorphism in the Tibetan-sheep;(2)There were twophenotypes including AMY2 A and AMY2 0 on the locus of AMY2 and its frequencies ofphenotype were 25.6%and 74.39%resp.;(3)The frequencies of AMY2 ̄A and AMY2 ̄0 alleleswere 0.1375 and 0.8625 resp. on the basis of hypothesis that AMY2 was controlled by a pairof alleles and the AMY2 ̄A allele was dominant to AMY2 ̄0 allele.
出处
《青海畜牧兽医杂志》
1994年第5期7-9,共3页
Chinese Qinghai Journal of Animal and Veterinary Sciences
关键词
血清
淀粉酶
同工酶
多态性
藏羊
Serum amylase,Isozyme,Polymorphism,Tibetan-sheep,Qinghai province