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黄藤遗传多样性的RAPD分析
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Journal Article
黄藤遗传多样性的RAPD分析
2005
Overview
利用RAPD标记从DNA水平对收集的4个天然黄藤种群进行遗传多样性分析。15条引物扩增得到154条片段，整个种的多态性位点比率为75．97％，Nei’s指数为0．2584，Shannon信息指数为0．3888。黄藤种的遗传多样性为0．2578，种群间的Nei遗传分化系数为0．1412，各种群间的遗传变异非常小。4个种群间的遗传相似性分析结果显示：毛感乡和尖峰岭种群间的遗传相似度最高，吊罗山和坝王岭种群间的遗传相似度最低。AMOVA分析结果表明：种群间基因分化系数为0．0262，大部分遗传变异（97．38％）来源于群体内。研究结果揭示：收集的天然黄藤种群具有较高的遗传多样性，有良好的保存和利用价值，尖峰岭种群可以作为重点保护。
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