中国美利奴(新疆军垦型)种羊场超细品系核心群群体遗传结构分析  

Studies on Population Genetics Structure of Super-fine Breed Nuclear Population of Chinese Merino(Xinjiang Army Westland Reclamation Model) County in Xinjiang

作　　者：曾献存[1] 石国庆[2] 贾斌[1] 王建华 何启宏 张永胜 彭林泽[1] 余智勇[1] 

机构地区：[1]石河子大学动物科技学院,石河子832003 [2]新疆农垦科学院,石河子832003 [3]新疆农八师紫泥泉种羊场,石河子832003

出　　处：《中国畜牧兽医》2007年第8期142-145,共4页China Animal Husbandry & Veterinary Medicine

基　　金：国家科学技术部"863计划引导"项目:应用高新生物技术选育超细毛羊的研究(2005AA001420)

摘　　要：利用10个微卫星标记对新疆紫泥泉国家二级种羊场中国美利奴(新疆军垦型)羊超细品系核心群基因组DNA的遗传多样性进行了检测。统计了各位点的多态信息含量(PIC)、遗传杂合度(H)、有效等位基因数(E)和基因纯合率(Rh)等遗传指标。结果表明:除BMS772(PIC=0.2567),BM6506(PIC=0.4697)为中度多态外,其余微卫星位点均为高度多态;群体的平均PIC、H、E、Rh分别为0.5848、0.6333、3.0315和0.4841,该品系核心群的基因纯合率处于中等水平,具有较为丰富的多样性;10个微卫星标记中只有OARAE57位点处于哈代-温伯格平衡(P>0.05)。The Polymorphisms distribution of 10 microsatellite Loci were determined in 154 samples of Super-fine Breed nu clear Population in Chinese Merino（xinjiang army westland reclamation model） county. Polymorphism information content （PIC）, effective number of alleles（E）, gene heterozygosity（H） and Rate of homozygote of alleles （Rh） for all microsatellite loci were calculated. The resusts showed the 8 of 10 microsatellite Loci were highly polymorphic, and BMS772 and BM6506 was medium polymorphic ; The mean PIC, H,E, and Rh were 0. 5848,0. 6333,3. 0315,0. 4841 respectively, this population have high genetic diversity and medium rate of homozygote of alleles ; and just OARAE57 locus obeyd Hardy-Weinberg balance e quilibrium （P〉0.05）.

关 键 词：中国美利奴羊 微卫星 遗传多样性 

分 类 号：S826.86[农业科学—畜牧学]