| 新疆13个绵羊群体遗传多样性及遗传分化的研究 |
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| 引用本文： | 汤存伟,余雄,刘武军,张浩,石亮,邢巍婷,程黎明,黄锡霞,马晓燕.新疆13个绵羊群体遗传多样性及遗传分化的研究[J].家畜生态,2011(1):13-19. |
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| 作者姓名： | 汤存伟 余雄 刘武军 张浩 石亮 邢巍婷 程黎明 黄锡霞 马晓燕 |
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| 作者单位： | 新疆农业大学动物科学学院;新疆伊犁职业技术学院;新疆维吾尔自治区畜禽繁育改良总站; |
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| 基金项目： | 新疆维吾尔自治区“十一五”重大专项(200731135); 世行项目(GEF052456CHA) |
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| 摘 要： | 利用10个微卫星标记对新疆13个绵羊群体的遗传多样性和遗传分化进行了分析。通过计算多态信息含量（PIC）、平均杂合度（H）、群体内近交系数（Fis）、遗传分化系数（Fst）、总群体近交系数（Fit）和基因流（Nm）等参数,评估各品种遗传多样性和品种间遗传分化。结果表明：13个绵羊群体10个微卫星标记的平均多态信息含量为0.6803;平均杂合度为0.7192,其中中国美利奴羊平均杂合度最高为0.7530,山区和田羊最低为0.6754;13个绵羊群体总近交系数为0.1066,群体内近交系数为0.0565,群体间基因分化系数为0.0531,说明5.65%的遗传变异来自群体间,94.35%的遗传变异来自群体内个体间的差异;基因流Nm平均值为4.4621（3.0808~7.4589）,说明各种群间存在或者在过去某个时期发生基因交流;各种群间平均遗传距离较低,为0.1702,平均遗传一致度数值较高,为0.8448,也再次证明了新疆13个绵羊群体间分化程度不高。基于Nei′s标准遗传距离运用UPGMA聚类法获得的新疆13个绵羊群体的聚类图与其品种育成史和地理分布基本相一致。
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| 关 键 词： | 新疆 绵羊 微卫星 遗传多样性 遗传分化 |
Stndy on Genetic Diversity and Genetic Differentiation of 13 Sheep Populations in Xinjiang Uygur Autonomous Region |
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| TANG Cun-wei,YU Xiong,LIU Wu-jun,ZHANG Hao,SHI Liang,XING Wei-ting,CHENG Li-ming,HUANG Xi-xia,MA Xiao-yan.Stndy on Genetic Diversity and Genetic Differentiation of 13 Sheep Populations in Xinjiang Uygur Autonomous Region[J].Ecology of Domestic Animal,2011(1):13-19. |
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| Authors: | TANG Cun-wei YU Xiong LIU Wu-jun ZHANG Hao SHI Liang XING Wei-ting CHENG Li-ming HUANG Xi-xia MA Xiao-yan |
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| Institution: | TANG Cun-wei1,YU Xiong1,LIU Wu-jun1,ZHANG Hao2,SHI Liang1,XING Wei-ting1,CHENG Li-ming1,2,HUANG Xi-xia1,MA Xiao-yan1(1.College of Animal Science,Xinjiang Agricultural University,Urumqi,Xinjiang 830052,China,2.Yili vocational-technical school,Yili,Xinjiang 835000,3.Improving chief administration of livestock and poultry breeding,Xinjiang Uygur Autonomous Region,Xinjiang 830009,China) |
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| Abstract: | The genetic diversity and genetic differentiation of 13 sheep populations in Xinjiang Uygur Autonomous Region of China were surveyed using 10 microsatellite markers.Using polymorphism information content(PIC),average heterozygosity(H),the heterozygote deficit within population(Fis),the global heterozygote deficit across of all populations(Fit),the coefficients of genetic differentiation(Fst) and gene flow(Nm),we evaluated the genetic diversity and genetic differentiation.The results showed that the mean pol... |
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| Keywords: | Xingjiang sheep microsatellite genetic diversity genetic differentiation |
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