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中国栽培大豆群体结构不同分类方法的比较

DOI: 10.7685/j.issn.1000-2030.2011.02.003, PP. 13-17

Keywords: 群体结构,遗传多样性,STRUCTURE软件,聚类分析,大豆

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Abstract:

利用215个大豆品种的135个分子标记数据,用STRUCTURE软件、PowerMarker软件和地理生态类型3种分类方法研究了大豆品种的群体遗传结构,以探索适宜的分类方法。结果表明用STRUCTURE软件分类时,亚群间成对分化系数(Fst)的平均值最大,为0.1083,含有相同最高频率等位基因的位点数最小,为85,说明各亚群间遗传差异最大;亚群内遗传多样度(Hs)为0.491,多态性信息含量(PIC)为0.7376,群体内分化系数(Fis)为0.974,均为最小,说明亚群内个体间遗传相似性最高。因此,用STRUCTURE软件研究群体遗传结构最适宜。

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