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SSR在琼海和三亚两普通野生稻居群中的遗传变异

Variation in Simple Sequence Repeats in Two Common Wild Rice Populations from Qionghai and Sanya

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【作者】 陈良兵朱美霞胡炳义

【Author】 Liangbing Chen1,2*, Meixia Zhu3, Bingyi Hu2 (1 College of Life Science and Technology, Guangxi University, Nanning 530004) (2 Life Science Department, Zhoukou Teaching College, Zhoukou 466000) (3 Hebei Engeering College, Handan 056038)

【机构】 广西大学生命科学与技术学院河北工程学院周口师范学院生命科学系 南宁530004周口师范学院生命科学系周口466000邯郸056038周口466000

【摘要】 通过分析37个SSR座位在琼海与三亚两普通野生稻(Oryzarufipogon)居群中的遗传变异,结果表明,SSR座位在三亚普通野生稻居群中的变异高于其在琼海普通野生稻居群中的变异。根据遗传相似性和遗传距离公式得到琼海与三亚普通野生稻居群间的遗传相似性为0.6385,遗传距离为0.4486cM。Wright的FST检验结果表明,这37个SSR座位在两居群之间存在着中等程度的遗传分化,FST=0.3909。此分化结果主要是由两居群间弱的基因漂移导致的(Nm=0.3895)。

【Abstract】 We studied variation in 37 simple sequence repeats (SSRs) in 2 populations of common wild rice Oryza rufipogon from Qionghai and Sanya in Hainan. SSRs had more genetic variability in the Sanya than in the Qionghai population. The genetic identity and distance between the 2 popula- tions were 0.6385 and 0.4486 cM, respectively. The result of Wright’s FST showed that 37 SSRs had moderate genetic differentiation within the Qionghai and Sanya populations, with an FST=0.3909, which was mainly caused by lower gene flow, with an Nm=0.3895.

  • 【文献出处】 植物学通报 ,Chinese Bulletin of Botany , 编辑部邮箱 ,2006年02期
  • 【分类号】S511.9
  • 【被引频次】5
  • 【下载频次】80
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