| 内蒙古3种生态型扁蓿豆遗传多样性与亲缘关系的分析 |
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| 引用本文： | 李志勇,师文贵,李鸿雁,李兴酉,刘磊. 内蒙古3种生态型扁蓿豆遗传多样性与亲缘关系的分析[J]. 西北植物学报, 2009, 29(12) |
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| 作者姓名： | 李志勇 师文贵 李鸿雁 李兴酉 刘磊 |
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| 作者单位： | 中国农业科学院,草原研究所,农业部草地资源与生态重点开放实验室,呼和浩特,010010 |
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| 基金项目： | 牧草种质资源保护项目，农业部农作物种质资源保护与利用项目 |
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| 摘 要： | 采用SSR分子标记结合21个表型性状对来自内蒙古3种生态型扁蓿豆种质资源的遗传多样性和亲缘关系进行了分析.结果表明:3种生态型的22份扁蓿豆材料在考察的4个质量性状上差异明显;在17个数量性状上,总体变异程度为黄花型扁蓿豆>扁蓿豆>细叶扁蓿豆;表型性状的遗传相似系数在31.59～113.27间,变异系数为43.30%.SSR分析结果显示,18对引物平均多态性比率为80.09%,引物平均等位位点数为6.06,位点多态性信息含量平均为0.32,遗传相似系数在0.37～0.47间,变异系数为61.80%.表型性状聚类、SSR分子标记聚类及主成分分析结果均显示,黄花型扁蓿豆和扁蓿豆的亲缘关系较近,与细叶扁蓿豆的亲缘关系较远.
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| 关 键 词： | 扁蓿豆 表型性状 遗传多样性 亲缘关系 |
Genetic Diversity and Relationship of Three Medicago ruthenica Ecotypes from Inner Mongolia |
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| LI Zhi-yong,SHI Wen-gui,LI Hong-yan,LI Xing-you,LIU Lei. Genetic Diversity and Relationship of Three Medicago ruthenica Ecotypes from Inner Mongolia[J]. Acta Botanica Boreali-Occidentalia Sinica, 2009, 29(12) |
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| Authors: | LI Zhi-yong SHI Wen-gui LI Hong-yan LI Xing-you LIU Lei |
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| Affiliation: | LI Zhi-yong,SHI Wen-gui,LI Hong-yan,LI Xing-you,LIU Lei(Key Laboratory of Grassl, Resources , Ecology Ministry of Agriculture,Grassl, Research Institute of the Chinese Academy of Agriculture Science,Hohhot 010010,China) |
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| Abstract: | Genetic diversity and relationship were studied by SSR marker and 21 phenotypic characters among three Medicago ruthenica ecotypes collected from Inner Mongolia.The results showed that there were significant differences among the three Medicago ruthenica ecotypes in 4 qualitative characters.In the 17 quantitative character,variation of overall characters on three Medicago ruthenica ecotypes was in the order of yellow type Medicago ruthenica>Medicago ruthenica>Medicago ruthenica var.oblongifolia.The genetic ... |
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| Keywords: | SSR Medicago ruthenica phenotypic trait SSR genetic diversity relationship |
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