Effect of Isolation of Hainan Island from the Mainland on the Genetic Variation of Podocarpus imbricatus

编号 zgly0000302212

文献类型 期刊论文

文献题名 Effect of Isolation of Hainan Island from the Mainland on the Genetic Variation of Podocarpus imbricatus

学科分类 220.99;林学其他学科

作者 LiJingwen  ZhangHuarong  LiJunqing 

作者单位 CollegeofResourcesandEnvironment 

母体文献 中国林学: 英文版 

年卷期 2003,5(3)

页码 6-9

年份 2003 

分类号 S791.24 

关键词 罗汉松  遗传变异  海南岛种群  中国大陆种群  地理隔离  RAPD分子标记 

文摘内容 Random amplified polymorphic DNA (RAPD) markers were used to analyze genetic variation of Podocarpus imbricatus in Hainan Island and Mainland of China. Two populations of Dacrydium pierrei were used as comparison materials. Both Podocarpus imbricatus and Dacrydium pierrei showed a low level of genetic diversity. However, Podocarpus imbricatus showed higher genetic diversity and higher population differentiation than Dacrydium pierrei. The geographic range may affect the geneticdiversity of Podocarpus imbricatus and Dacrydium pierrei signific antly. The UPGMA cluster tree showed that populations of Podocarpus imbricatus in Hainan Island and Guangxi Zhuang Autonomous Region were closer than those in Yunnan Province,indicating possible gene flow between Hainan Island and Guangxi Zhuang Autonomous Region. The young geological history of Hainan Island and the three times of unification and separation between Hainan Island and the Mainland may give the two species more possibilities of gene flow。