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1. Genetic diversity and intraspecific genetic differentiation of Ostryopsis davidiana (Betulaceae) revealed by AFLP | |||
LU Zhiqiang,TIAN Bin,LIU Bingbing,LIU Jianquan,WAN Dongshi | |||
Biology 28 February 2014 | |||
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Abstract:Ostryopsis davidiana is endemic to China and widely distributed in northern China. In this study, AFLP markers were used to estimate the genetic diversity and intraspecific genetic differentiation of this species. Three out of fifteen selective primers combinations were applied to analyze 144 individuals of 18 populations of O. davidiana from entire geographical range in China. Finally, a total of 154 fragments with 84 polymorphic sites were produced. Excluding the average between-population diversity, the total population diversity, average within-population diversity and the Nei's gene diversity of southern group (SG) are higher than northern group (NG). One of the possible explanations for this result is that NG may originate from SG. Moreover, Bayesian clustering analysis (K = 2) suggested that populations of SG and NG were assigned to their respective groups with high possibility. Additionally, UPGMA clustering method further suggested all the populations from O. davidiana were also clustered into two groups corresponding to their geographical distributions. This species expanding from south to north before the time when the fast uplifts of Qing Mountains happened then experiencing a strong intraspecific genetic differentiation for the two groups isolated by the Mountains may provide the most reasonable explanation for these results. | |||
TO cite this article:LU Zhiqiang,TIAN Bin,LIU Bingbing, et al. Genetic diversity and intraspecific genetic differentiation of Ostryopsis davidiana (Betulaceae) revealed by AFLP[OL].[28 February 2014] http://en.paper.edu.cn/en_releasepaper/content/4587889 |
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