| 青海省马铃薯主要栽培品种的SSR遗传多样性 |
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| 引用本文： | 滕长才,张永成,张凤军.青海省马铃薯主要栽培品种的SSR遗传多样性[J].分子植物育种,2009,7(3). |
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| 作者姓名： | 滕长才 张永成 张凤军 |
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| 作者单位： | 青海省农林科学院,青海省马铃薯育种重点实验室,西宁,810016 |
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| 基金项目： | 国家科技项目，青海省重点科技攻关项目，现代农业产业技术体系建设专项基金 |
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| 摘 要： | 利用SSR标记分析了12份马铃薯栽培品种的遗传多样性及其亲缘关系,结果表明:(1)30对SSR引物共扩增出388条带,其中多态性条带为359条.(2)12份材料的遗传距离介于0.238 5～0.4801 cM之间,平均值为0.397 6 cM.(3)利用由非加权类平均法聚类分析表明,在遗传相似系数0.63处将12份材料被划分为五类:两类为晚熟(其中从国际马铃薯中心引进的青薯9号品种为一类;青薯168,2号,3号,4号品种为另一类),两类为早熟(其中青薯5号品种为一类;青薯8号品种和02-1-1品系为另一类),一类为中熟(因育成的地域不同而分为两个亚类).结果表明,青海省现有主要栽培的马铃薯品种遗传多样性水平较低.为拓宽育成品种的遗传基础,应充分发掘野生二倍体的遗传潜力.
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| 关 键 词： | 马铃薯 遗传多样性 SSR标记 聚类分析 |
Genetic Diversity of Leading Potato Cultivars in Qinghai Province Revealed by SSR |
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| Teng Changcai,Zhang Yongcheng,Zhang Fengjun.Genetic Diversity of Leading Potato Cultivars in Qinghai Province Revealed by SSR[J].Molecular Plant Breeding,2009,7(3). |
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| Authors: | Teng Changcai Zhang Yongcheng Zhang Fengjun |
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| Institution: | Teng Changcai Zhang Yongcheng Zhang Fengjun Qinghai Academy of Agriculture , Forestry Science,The Key Laboratory for Potato Breeding of Qinghai Province,Xining,810016 |
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| Abstract: | The genetic diversity and relationships among twelve potato cultivars were investigated by SSR (simple sequence repeats) markers. Three conclusions can be drawn from this study: (1) A total of 388 bands were amplified using 30 SSR primer pairs, among which 359 were polymorphic bands. (2) The genetic distances between twelve potato cultivars ranged from 0.238 5 cM to 0.480 1 cM, and the average value was 0.397 6 cM. (3) The UPGMA (unweighted pair group method arithmetic averages) analysis based on SSR datas ... |
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