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草业学报  2010 

野生马蹄金种质遗传多样性的SRAP研究

, PP. 164-170

Keywords: 马蹄金,SRAP,遗传多样性,聚类分析

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Abstract:

为评价野生马蹄金种质的遗传多样性,从80对SRAP引物中筛选出19对多态性高、稳定性好的引物,用于研究21份马蹄金材料,获得如下结果:1)19对引物共扩增出212条带,平均每对引物扩增出11.1条,其中多态性条带156条,平均每对引物8.2条,多态率为73.58%。材料间遗传相似系数变化范围为0.444~0.980,平均值为0.7112。结果表明,供试马蹄金材料具有较为丰富的遗传多样性。2)对所有材料的聚类分析发现,在GS值为0.78处所有供试材料可聚为3个类群,大部分来源地相同或生态环境相似的材料聚为一类,表明供试材料的聚类和生态地理环境具有一定的相关性。

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