| 倪胜利,李兴茂,王立明.20份美国冬小麦品种的遗传多样性分析[J].干旱地区农业研究,2012,30(4):248~252 |
| 20份美国冬小麦品种的遗传多样性分析 |
| SSR analysis of genetic diversity of twenty winter wheat cultivars introduced from USA |
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| DOI：10.7606/j.issn.1000-7601.2012.04.44 |
| 中文关键词: 冬小麦 遗传多样性 SSR 聚类分析 |
| 英文关键词:winter wheat genetic diversity SSR cluster |
| 基金项目:甘肃省自然科学基金暨中青年科技基金（3ZS061-A25-067）；甘肃省农科院农业科技创新专项（2010GAAS21） |
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| 中文摘要: |
| 为了解从美国引进的20个冬小麦品种的遗传差异及其遗传丰富度,提高其作为小麦种质资源的有效利用率,选择了具有多态性的24对SSR标记进行检测。结果表明：48条引物在20个冬小麦品种中检测到153条差异带, 每对引物多态性位点2～13个，平均6.37个，可以清楚地将供试品种分开；20个材料的遗传相似系数为0.62～0.84，平均遗传相似系数为0.72，供试品种的遗传基础有一定的差异性，其中相似系数最高的是1R2与1R24，为0.84。聚类分析在相似系数0.68处将20个品种聚为四类。 |
| 英文摘要: |
| In order to gain knowledge of genetic diversity of winter wheat, 20 cultivars introduced from USA were analyzed for polymorphism by some SSR markers developed in our laboratory. A set of 48 SSR markers were screend and a total of 153 allelic variants were detected in the 20 wheat cultivars, with the range of 2 to 13 alleles per marker and average of 6.37. The genetic similarity coefficient (GS) among the cultivars was 0.72 at average, and varied from 0.62 to 0.84. Based on 0.68 of GS, the cultivars used in this study were clustered into four groups. |
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