Phylogeography of Camellia taliensis  (Theaceae) inferred from chloroplast and nuclear DNA: insights into evolutionary history and conservation

doi:10.1186/1471-2148-12-92

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	Phylogeography of Camellia taliensis (Theaceae) inferred from chloroplast and nuclear DNA: insights into evolutionary history and conservation
	Liu,Yang 1; Yang,Shi-xiong 2; Ji,Peng-zhang 3; Gao,Li-zhi1
	2012-06-21
发表期刊	BMC Evolutionary Biology
ISSN	1471-2148
卷号	12 期号:1
摘要	AbstractBackgroundAs one of the most important but seriously endangered wild relatives of the cultivated tea, Camellia taliensis harbors valuable gene resources for tea tree improvement in the future. The knowledge of genetic variation and population structure may provide insights into evolutionary history and germplasm conservation of the species.ResultsHere, we sampled 21 natural populations from the species' range in China and performed the phylogeography of C. taliensis by using the nuclear PAL gene fragment and chloroplast rpl32-trnL intergenic spacer. Levels of haplotype diversity and nucleotide diversity detected at rpl32-trnL (h?=?0.841; π?=?0.00314) were almost as high as at PAL (h?=?0.836; π?=?0.00417). Significant chloroplast DNA population subdivision was detected (GST?=?0.988; NST?=?0.989), suggesting fairly high genetic differentiation and low levels of recurrent gene flow through seeds among populations. Nested clade phylogeographic analysis of chlorotypes suggests that population genetic structure in C. taliensis has been affected by habitat fragmentation in the past. However, the detection of a moderate nrDNA population subdivision (GST?=?0.222; NST?=?0.301) provided the evidence of efficient pollen-mediated gene flow among populations and significant phylogeographical structure (NST?>?GST; P?
DOI	10.1186/1471-2148-12-92
语种	英语
WOS记录号	BMC:10.1186/1471-2148-12-92
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/61731
专题	中国科学院昆明植物研究所
通讯作者	Gao,Li-zhi
作者单位	1.Kunming Institute of Botany, Chinese Academy of Sciences; Plant Germplasm and Genomics Center, Germplasm Bank of Wild Species 2.Kunming Institute of Botany, Chinese Academy of Sciences; Key Laboratory of Biodiversity and Biogeography 3.Yunnan Academy of Agricultural Sciences; Tea Research Institute
推荐引用方式 GB/T 7714	Liu,Yang,Yang,Shi-xiong,Ji,Peng-zhang,et al. Phylogeography of Camellia taliensis (Theaceae) inferred from chloroplast and nuclear DNA: insights into evolutionary history and conservation[J]. BMC Evolutionary Biology,2012,12(1).
APA	Liu,Yang,Yang,Shi-xiong,Ji,Peng-zhang,&Gao,Li-zhi.(2012).Phylogeography of Camellia taliensis (Theaceae) inferred from chloroplast and nuclear DNA: insights into evolutionary history and conservation.BMC Evolutionary Biology,12(1).
MLA	Liu,Yang,et al."Phylogeography of Camellia taliensis (Theaceae) inferred from chloroplast and nuclear DNA: insights into evolutionary history and conservation".BMC Evolutionary Biology 12.1(2012).