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北方园艺  2014 

基于成熟期的桃品种遗传多样性SSR分析

, PP. 88-93

Keywords: ,简单重复序列(SSR),遗传多样性,成熟期

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Abstract:

以95份桃育成品种为试材,利用32对SSR分子标记对桃育成品种进行遗传多样性分析。结果表明筛选的18对SSR引物共检测出93个等位基因,其中多态性等位基因为50个。桃群体的平均Nei’s基因多样度为0.5652,Shannon遗传表型指数为1.1125,说明桃总群体遗传变异偏低。针对桃的成熟期进行遗传分析,发现早熟和中熟类群遗传数据相似,推测二者亲缘关系相近;同理,推测晚熟品种与前二者关系较远。表明桃的成熟期与其等位基因相关,该研究结果可为进一步研究桃的遗传分析奠定基础。

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