| 崇明白山羊群体间的遗传分化 |
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| 引用本文： | 陈士超,郑佩培,罗倩倩,刘志学.崇明白山羊群体间的遗传分化[J].中国畜牧杂志,2010,46(19). |
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| 作者姓名： | 陈士超 郑佩培 罗倩倩 刘志学 |
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| 作者单位： | 同济大学生命科学与技术学院;安徽师范大学生命科学学院; |
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| 基金项目： | 上海市科委重大科技攻关项目，国家863重点项目 |
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| 摘 要： | 在采用ISSR分子标记方法检测崇明白山羊群体遗传变异的基础上,分析群体间的遗传分化水平,探讨影响群体遗传分化的主要因素。结果表明:3个山羊群体间的遗传分化系数Gst在0.0283～0.0431之间,平均仅为0.0342,说明群体间的遗传分化水平很低,遗传变异绝大部分存在于群体内,AMOVA测度遗传分化参数Fst=4.59%,与用Gst分析的结果一致;Mantel test检验显示,不同地域山羊群体的分布不符合地理隔离模式,而且群体间的基因流十分通畅;亲缘关系的UPGMA聚类结果与已知的亲缘关系相吻合。
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| 关 键 词： | ISSR 遗传分化 基因流 地理隔离 山羊 |
Genetic Differentiation of Populations of Indigenous Goat in Chongming Island |
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| CHEN Shi-chao,ZHENG Pei-pei,LUO Qian-qian,LIU Zhi-xue.Genetic Differentiation of Populations of Indigenous Goat in Chongming Island[J].Chinese Journal of Animal Science,2010,46(19). |
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| Authors: | CHEN Shi-chao ZHENG Pei-pei LUO Qian-qian LIU Zhi-xue |
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| Institution: | CHEN Shi-chao~1,ZHENG Pei-pei~1,LUO Qian-qian~2,LIU Zhi-xue~(1*) (1.College of Life Science and Technology,Tongji University,Shanghai 200092,2.College of Life Science,Anhui Normal University,Anhui Wuhu 241000,China) |
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| Abstract: | Genetic differentiation and its impact factors were analyzed among indigenous goat populations of Chongming Island,based on genetic variations of different populations by ISSR.Results showed that coefficients of genetic differentiation of three goat populations was between 0.0283 and 0.0431,with the average of 0.0342,demonstrating that genetic differentiation level was very low among populations and most genetic variations existed within population,which is agreement with the results of AMOVA analysis.The d... |
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| Keywords: | ISSR genetic differentiation gene flow geographical isolation goat |
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