Chloroplast DNA variation and phylogeography of Ligularia tongolensis (Asteraceae), a species endemic to the Hengduan Mountains region of China

doi:10.1111/j.1759-6831.2011.00117.x

	Chloroplast DNA variation and phylogeography of Ligularia tongolensis (Asteraceae), a species endemic to the Hengduan Mountains region of China
	Wang, Jin-Feng 1,2; Pan, Yue-Zhi1 ; Gong, Xun1 ; Chiang, Yu-Chung 3; Kuroda, Chiaki 4
通讯作者	Gong, X (reprint author), Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
	2011-03-01
发表期刊	JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN	1674-4918
卷号	49 期号:2 页码:108-119
摘要	In this research, we aimed to study the genetic variation and phylogeographic pattern of Ligularia tongolensis, a perennial herb endemic to the Hengduan Mountains region of China. We sequenced two chloroplast DNA (cpDNA) intergenic spacers (trnQ-5'rps16, trnL-rpl32) in 140 individuals from 14 populations of three groups (Jinshajiang vs. Yalongjiang vs. Wumeng) within this species range. High levels of haplotype diversity (Hd = 0.814) and total genetic diversity (Ht = 0.862) were detected at the species level, based on a total of 12 haplotypes identified. Low levels of intrapopulation diversity (Hs = 0.349), high levels of genetic divergence (Gst = 0.595, Nst = 0.614, Fst = 0.597), and the absence of isolation by distance tests were also found in L. tongolensis. Furthermore, H2 and H5, the dominant haplotypes that located at internal nodes and deviated from extinct ancestral haplotype in the network, were found to be shared between Jinshajiang and Yalongjiang groups. These results indicate that past fragmentation may be the important factor responsible for the present phylogeographical pattern of L. tongolensis. Meanwhile, the locations occupied by each group might have served as independent refugia for L. tongolensis during the Quaternary glaciation. Unimodal mismatch distribution and star-like genealogies indicated this species underwent past demographic expansion events, with expansion ages of 274 ka BP.
关键词	Genetic Variation Ligularia Tongolensis Phylogeography Quaternary Glaciation
学科领域	Plant Sciences
DOI	10.1111/j.1759-6831.2011.00117.x
收录类别	SCI
语种	英语
WOS记录号	WOS:000289534100003
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/5299
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, Kunming Inst Bot, Kunming 650204, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Natl Sun Yat Sen Univ, Dept Biol Sci, Kaohsiung 80424, Taiwan 4.Rikkyo Univ, Dept Chem, Tokyo 1718501, Japan
推荐引用方式 GB/T 7714	Wang, Jin-Feng,Pan, Yue-Zhi,Gong, Xun,et al. Chloroplast DNA variation and phylogeography of Ligularia tongolensis (Asteraceae), a species endemic to the Hengduan Mountains region of China[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2011,49(2):108-119.
APA	Wang, Jin-Feng,Pan, Yue-Zhi,Gong, Xun,Chiang, Yu-Chung,&Kuroda, Chiaki.(2011).Chloroplast DNA variation and phylogeography of Ligularia tongolensis (Asteraceae), a species endemic to the Hengduan Mountains region of China.JOURNAL OF SYSTEMATICS AND EVOLUTION,49(2),108-119.
MLA	Wang, Jin-Feng,et al."Chloroplast DNA variation and phylogeography of Ligularia tongolensis (Asteraceae), a species endemic to the Hengduan Mountains region of China".JOURNAL OF SYSTEMATICS AND EVOLUTION 49.2(2011):108-119.

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