夏南牛体尺性状与微卫星DNA的相关分析  

Correlation Analysis of Microsatellite DNA Markers and Body Size Traits in Xianan Cattle

作　　者：汪聪勇[1] 高腾云[1] 祁兴磊 陈江凌[1] 茹宝瑞 王之保 

机构地区：[1]河南农业大学牧医工程学院,郑州450002 [2]泌阳县畜牧局,河南泌阳463700 [3]河南省畜禽改良站,郑州450008

出　　处：《西南大学学报（自然科学版）》2010年第2期44-51,共8页Journal of Southwest University(Natural Science Edition)

基　　金：河南省世界银行贷款肉牛发展资助项目(豫牧计字2000-33)

摘　　要：试验选择18月龄的夏南牛母牛40头,选用8个微卫星DNA标记,研究了夏南牛群体遗传变异,并分析了体尺性状与8个微卫星标记的关系.结果表明:8个微卫星标记BM2113、BM1824、ETH225、IDVGA2、IDV-GA46、IDVGA55、BM3413和TGLA44等位基因数分别为7,6,6,6,6,4,6和6;多态信息含量分别为0.764,0.775,0.786,0.701,0.723,0.570,0.759和0.776;杂合度分别为0.801,0.784,0.824,0.744,0.772,0.648,0.802和0.815.8个微卫星标记分别对夏南牛不同体尺性状存在正效应或负效应.Forty 18-month-old Xianan cows and 8 microsatellite DNA markers（BM2113,BM1824,ETH225,IDVGA2,IDVGA46,IDVGA55,BM3413 and TGLA44） were used to study the population genetic variation Xianan cattle and the relationships between the gene loci and their body size traits.The results showed that the these 8 microsatellite markers had 7,6,6,6,6,4,6 and 6 alleles,their（polymorphism information content） PIC was 0.764,0.775,0.786,0.701,0.723,0.570,0.759 and 0.776 and their heterozygosis was 0.801,0.784,0.824,0.744,0.772,0.648,0.802 and 0.815,respectively.The microsatellites were found to be in positive or negative correlation with some body size traits in the population.

关 键 词：夏南牛 遗传变异 体尺性状 微卫星DNA 

分 类 号：S823[农业科学—畜牧学]