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茄子种质资源遗传多样性和群体结构分析

DOI: 10.7685/j.issn.1000-2030.2013.05.003, PP. 13-20

Keywords: 茄子,遗传多样性,群体结构,SRAP

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Abstract:

采用SRAP分子标记技术,对国内外70份茄子材料的遗传多样性和群体结构进行了分析。结果表明21对引物共扩增出375条条带,平均每条引物扩增出17.8条条带,其中多态性条带共72个,多态性比例为19.2%,各种质间遗传相似系数变幅为0.3889~0.9583,平均值为0.7053,表明参试材料间存在着一定的遗传差异,但遗传基础比较狭窄。群体结构分析则得出84.29%的材料遗传结构相对比较单一,仅15.71%拥有复杂的遗传背景。从材料划分类群来看,遗传多样性和群体结构分析结果基本一致,只有少数遗传背景复杂的材料类群划分有些差异。

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