RAPD analysis on genetic diversity of wild population of lespedeza michx.
2006
Zhang Jiyu, Yuan Qinghua, Wang Yanrong
Chinese. 利用RAPD标记分析胡枝子属14个野生居群遗传多样性,对其60个10碱基随机引物进行筛选,选择能产生多态性谱带的20个引物,共获得209个RAPD标记,182个显多态性,占总谱带数的87.08%。居群间观测等位基因数A a和有效等位基因数A e分别为1.8708和1.5868,Nei′s基因多样性指数H和Shannon′s信息指数I分别为0.3344和0.4921,揭示了居群间存在较高的遗传多样性。遗传距离介于0.1006~0.651之间,14个材料的聚类结果与形态学分类结果有相同的趋势。本研究对胡枝子属植物种质资源的保存和育种利用有一定参考价值。
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