| 小麦抗蚜品种的遗传多样性SSR标记分析 |
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| 引用本文： | 仇松英,张松令,史忠良,谢福来,高炜,史晓芳.小麦抗蚜品种的遗传多样性SSR标记分析[J].农学学报,2011(4). |
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| 作者姓名： | 仇松英 张松令 史忠良 谢福来 高炜 史晓芳 |
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| 作者单位： | 山西省农业科学院小麦研究所;浙江大学浙江加州纳米研究院; |
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| 基金项目： | 山西省科技攻关项目“小麦外源抗逆基因的导入与利用研究”(2006031001-01);“小麦抗麦红吸浆虫新品种选育及利用研究”(2007031001-5) |
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| 摘 要： | 分析小麦抗蚜品种(系)的遗传多样性,为进一步培育和推广抗蚜品种提供依据。在田间对956份小麦品种(系)损失率鉴定结果的基础上,取47份年度间鉴定抗性结果较为一致的材料,按损失率大小,由小到大排列起来,利用筛选的18对多态性SSR标记检测了参试材料的遗传多态性。结果表明,18对SSR标记在47份不同抗性品种中检测到99个等位基因,能够将所有品种区分开来,每对引物可以检测到1~10个等位基因,平均为5.21个。47个小麦品种间的相对遗传距离在0.33~0.94之间,平均为0.65。高抗品种间相对遗传距离平均为0.59(0.39~0.77);中抗品种间的相对遗传距离平均为0.62(0.39~0.83);感虫品种间的相对遗传距离平均为0.62(0.37~0.83);高感品种间的相对遗传距离平均为0.64(0.37~0.84)。SSR标记聚类分析在相对遗传距离为0.67处将供试材料分为7大类群。选育和推广抗虫品种时尽可能选择聚类图中亲缘关系较远的材料。抗虫品种‘临远95-5322’单独聚为一类,同其余品种具有较远的亲缘关系,可作为新的抗源用于抗虫育种。
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| 关 键 词： | 小麦 麦蚜 SSR 遗传多样性 遗传距离 |
Genetic Diversity Analysis of Aphids Resistant Wheat Varieties by Simple Sequence Repeat (SSR) Markers |
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| Qiu Songying ,Zhang Songling ,Shi Zhongliang ,Xie Fulai ,Gao Wei ,Shi Xiaofang.Genetic Diversity Analysis of Aphids Resistant Wheat Varieties by Simple Sequence Repeat (SSR) Markers[J].Journal of Agriculture,2011(4). |
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| Authors: | Qiu Songying Zhang Songling Shi Zhongliang Xie Fulai Gao Wei Shi Xiaofang |
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| Institution: | Qiu Songying 1,Zhang Songling 1,Shi Zhongliang 1,Xie Fulai 1,Gao Wei 1,Shi Xiaofang 2 ( 1 Wheat Research Institute,Shanxi Academy of Agricultural Sciences,Linfen 041000,Shanxi,China,2 Zhejiang California Nanotechnology Research Institute,Zhejiang University,Hangzhou 310020,Zhejiang,China) |
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| Abstract: | Based on field appraisal results for yield loss caused by aphids, 47 wheat varieties/lines with different degrees of aphid resistance were studied by 18 SSR markers to explore the genetic diversity of wheat aphids. Eighteen SSR markers were screened and a total of 99 allelic variants were detected in 47 wheat varieties, ranging from 1 to 10 alleles per marker with an average of 5.21. The mean of alleles of high resistance insect (HR) wheat varieties was 3.83, that of resistance insect (R) varieties was 3.88... |
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| Keywords: | Wheat Varieties Wheat Aphids SSR Genetic Diversity Genetic Distance |
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