Molecular phylogeography of alpine plant Metagentiana striata (Gentianaceae)

NWIPB OpenIR

	Molecular phylogeography of alpine plant Metagentiana striata (Gentianaceae)
	Chen, Sheng-Yun 1,3; Wu, Gui-Li 2; Zhang, De-Jun 1,3; Gao, Qing-Bo 1,3; Duan, Yi-Zhong 1,3; Zhang, Fa-Qi 1,3; Chen, Shi-Long 1
	2008-07-01
发表期刊	JOURNAL OF SYSTEMATICS AND EVOLUTION
卷号	46 期号:4 页码:573-585
文章类型	Article
摘要	Herbaceous plants have a short life cycle and are sensitive to environmental changes. Thus, they may serve as good models to elucidate historical processes of plant populations since Quaternary glaciations. Molecular phylogeographic analysis is a powerful tool to reveal the population history of plants and animals. To understand the geographic history of alpine plants in the Qinghai-Tibet Plateau, which is still poorly known, we surveyed sequence variation of the chloroplast DNA (cpDNA) noncoding fragment trnH (GUG)-psbA intergenic spacer throughout the range of Metagentiana striata (Maxim.) T. N. Ho, S. W. Liu & S. L. Chen, an annual and herbaceous alpine plant in the Qinghai-Tibet Plateau and adjacent areas. Seven haplotypes were detected by analyzing 155 individuals from 13 populations of this species. One haplotype (A) was common and widespread, and three haplotypes (E, F and G) were unique in their populations. The center of haplotype diversity is located in the Hengduan Mountains of southeastern Qinghai-Tibet Plateau, with 2-3 haplotypes present in each of four populations. In populations from the northeastern and eastern Qinghai-Tibet Plateau as well as from adjacent regions, however, only a single haplotype was found in each population, with different populations having different haplotypes. An analysis of molecular variance (AMOVA) for populations of M striata showed that the genetic variation mainly resided among populations (73.05%), and the estimates of interpopulation differentiation were very high (G(ST)=0.805, F(ST)=0.731, N(ST)=0.859). Further, a significant phylogeographic structure was present (N(ST) > G(ST), P<0.05) whereas the value of average gene flow was low (N(m)=0.184) in the entire geographical range. Along with the nested clade analysis (NCA), our results suggested that the Hengduan Mountains of southeastern Qinghai-Tibet Plateau served as a possible refugium during the Quaternary glaciations, and the interglacial or post-glacial range expansion by plants from the refugium followed by allopatric and past fragmentation shaped the present distribution patterns of haplotypes and populations.
关键词	Alpine Plant Cpdna Hengduan Mountains Metagentiana Striata Molecular Phylogeography Refugium Trnh (Gug)-psba
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	QINGHAI-TIBETAN PLATEAU ; CHLOROPLAST DNA ; ICE AGES ; POPULATION-STRUCTURE ; GLACIAL REFUGIA ; POSTGLACIAL RECOLONIZATION ; PHENOTYPIC ASSOCIATIONS ; GENETIC CONSEQUENCES ; SEQUENCE VARIATION ; CLADISTIC-ANALYSIS
收录类别	SCI
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000257723400014
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/6874
专题	中国科学院西北高原生物研究所
作者单位	1.Chinese Acad Sci, NW Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Peoples R China 2.Lanzhou Univ, Key Lab Arid & Grassland Ecol, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chen, Sheng-Yun,Wu, Gui-Li,Zhang, De-Jun,et al. Molecular phylogeography of alpine plant Metagentiana striata (Gentianaceae)[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2008,46(4):573-585.
APA	Chen, Sheng-Yun.,Wu, Gui-Li.,Zhang, De-Jun.,Gao, Qing-Bo.,Duan, Yi-Zhong.,...&Chen, Shi-Long.(2008).Molecular phylogeography of alpine plant Metagentiana striata (Gentianaceae).JOURNAL OF SYSTEMATICS AND EVOLUTION,46(4),573-585.
MLA	Chen, Sheng-Yun,et al."Molecular phylogeography of alpine plant Metagentiana striata (Gentianaceae)".JOURNAL OF SYSTEMATICS AND EVOLUTION 46.4(2008):573-585.