Strong genetic differentiation of Primula sikkimensis in the East Himalaya-Hengduan Mountains
Wang, Feng-Ying1,2; Ge, Xue-Jun3; Gong, Xun4; Hu, Chi-Ming1; Hao, Gang
2008-02-01
发表期刊BIOCHEMICAL GENETICS
ISSN0006-2928
卷号46期号:1-2页码:75-87
摘要The East Himalaya-Hengduan Mountains region is the center of diversity of the genus Primula, and P. sikkimensis is one of the most common members of the genus in the region. In this study, the genetic diversity and structure of P. sikkimensis populations in China were assessed using inter-simple sequence repeat (ISSR) and chloroplast microsatellite markers. The 254 individuals analyzed represented 13 populations. High levels of genetic diversity were revealed by ISSR markers. At the species level, the expected heterozygosity and Shannon's index were 0.4032 and 0.5576, respectively. AMOVA analysis showed that 50.3% of the total genetic diversity was partitioned among populations. Three pairs of chloroplast microsatellite primers tested yielded a total of 12 size variants and 15 chloroplast haplotypes. Strong cpDNA genetic differentiation (G(ST) = 0.697) and evidence for phylogeographic structure were detected (N-ST = 0.788, significantly higher than G(ST)). Estimated rates of pollen-mediated gene flow are approximately 27% greater than estimated rates of seed-mediated gene flow in P. sikkimensis. Both seed and pollen dispersal, however, are limited, and gene flow among populations appears to be hindered by the patchiness of the species' habitats and their geographic isolation. These features may have played important roles in shaping the genetic structure of P. sikkimensis. A minimum-spanning tree of chloroplast DNA haplotypes was constructed, and possible glacial refugia of P. sikkimensis were identified.
关键词Chloroplast Microsatellite East Himalaya-hengduan Mountains Issr Primula Sikkimensis
学科领域Biochemistry & Molecular Biology ; Genetics & Heredity
DOI10.1007/s10528-007-9131-9
收录类别SCI
语种英语
WOS研究方向Biochemistry & Molecular Biology ; Genetics & Heredity
WOS类目Biochemistry & Molecular Biology ; Genetics & Heredity
WOS记录号WOS:000252766900008
引用统计
被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/2523
专题资源植物与生物技术所级重点实验室
作者单位1.Chinese Acad Sci, S China Bot Garden, Guangzhou 510650, Peoples R China
2.Shanghai Bot Garden, Shanghai 200231, Peoples R China
3.Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510275, Peoples R China
4.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
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Wang, Feng-Ying,Ge, Xue-Jun,Gong, Xun,et al. Strong genetic differentiation of Primula sikkimensis in the East Himalaya-Hengduan Mountains[J]. BIOCHEMICAL GENETICS,2008,46(1-2):75-87.
APA Wang, Feng-Ying,Ge, Xue-Jun,Gong, Xun,Hu, Chi-Ming,&Hao, Gang.(2008).Strong genetic differentiation of Primula sikkimensis in the East Himalaya-Hengduan Mountains.BIOCHEMICAL GENETICS,46(1-2),75-87.
MLA Wang, Feng-Ying,et al."Strong genetic differentiation of Primula sikkimensis in the East Himalaya-Hengduan Mountains".BIOCHEMICAL GENETICS 46.1-2(2008):75-87.
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