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广西地不容种质资源的ISSR分析
覃艳;黄宁珍;赵志国;李锋;   
1.广西壮族自治区中国科学院广西植物研究所;2.广西壮族自治区中国科学院广西植物研究所 广西桂林541006;3.广西桂林541006
摘要:
采用简单序列重复区间扩增(ISSR)分子标记技术对广西地不容3个野生居群和1个引种居群共92个个体进行了遗传多样性研究。10个引物共扩增出61条带,其中60条具多态性,多态性位点百分率为98.36%。4个居群多态性百分率在73.77%~86.89%。Nei’s基因多样性指数(H)为0.3379,Shannon信息多样性指数(Ⅰ)为0.5055。3个野生居群Nei’s遗传分化系数(Gst)表明:83.87%遗传变异分布在居群内,16.13%的遗传变异分布在居群间。引种居群与3个野生居群间的遗传一致度达0.8846。引种居群有效地保护了广西地不容的遗传多样性。
关键词:  广西地不容    遗传多样性    ISSR    种质资源
DOI:
分类号:
Fund project:广西科技攻关项目(0322024-3B)~~
  
Abstract:
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