Molecular phylogenetics and biogeography of the eastern Asian-eastern North American disjunct Mitchella and its close relative Damnacanthus (Rubiaceae, Mitchelleae)
Huang, Wei-Ping1,2; Sun, Hang1; Deng, Tao1; Razafimandimbison, Sylvain G.4,5; Nie, Ze-Long1; Wen, Jun3
2013-02-01
发表期刊BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN0024-4074
卷号171期号:2页码:395-412
摘要Mitchella is a small genus of the Rubiaceae with only two species. It is the only herbaceous semishrub of the family showing a disjunct distribution in eastern Asia and eastern North America, extending to Central America. Its phylogeny and biogeographical diversification remain poorly understood. In this study, we conducted phylogenetic and biogeographical analyses for Mitchella and its close relative Damnacanthus based on sequences of the nuclear internal transcribed spacer (ITS) and four plastid markers (rbcL, atpB-rbcL, rps16 and trnL-F). Mitchella is monophyletic, consisting of an eastern Asian M. undulata clade and a New World M. repens clade. Our results also support Michella as the closest relative to the eastern Asian Damnacanthus. The divergence time between the two intercontinental disjunct Mitchella species was dated to 7.73 Mya, with a 95% highest posterior density (HPD) of 3.14-12.53 Mya, using the Bayesian relaxed clock estimation. Ancestral area reconstructions suggest that the genus originated in eastern Asia. The semishrub Mitchella appears to have arisen from its woody ancestor in eastern Asia and then migrated to North America via the Bering land bridge in the late Miocene. (C) 2013 The Linnean Society of London Botanical Journal of the Linnean Society, 2013, 171, 395-412.
关键词Bering Land Bridge Intercontinental Disjunction
资助信息Natural Sciences Foundation of China [NSFC 30970193, 30828001, 30625004, 40930209, 31061160184]; One Hundred Talents Program of the Chinese Academy of Sciences [2011312D11022]; NSFC; Yunnan Natural Science Foundation [U1136601]; John D. and Catherine T. MacArthur Foundation; Laboratory of Analytical Biology of the National Museum of Natural History, Smithsonian Institution; Natural Sciences Foundation of China(NSFC 30970193; One Hundred Talents Program of the Chinese Academy of Sciences(2011312D11022); NSFC; Yunnan Natural Science Foundation(U1136601); John D. and Catherine T. MacArthur Foundation; Laboratory of Analytical Biology of the National Museum of Natural History, Smithsonian Institution; 30828001; 30625004; 40930209; 31061160184)
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/16266
专题中国科学院东亚植物多样性与生物地理学重点实验室
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Smithsonian Inst, Natl Museum Nat Hist, Dept Bot, Washington, DC 20013 USA
4.Stockholm Univ, Royal Swedish Acad Sci, Bergius Fdn, SE-10691 Stockholm, Sweden
5.Stockholm Univ, Dept Bot, SE-10691 Stockholm, Sweden
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Huang, Wei-Ping,Sun, Hang,Deng, Tao,et al. Molecular phylogenetics and biogeography of the eastern Asian-eastern North American disjunct Mitchella and its close relative Damnacanthus (Rubiaceae, Mitchelleae)[J]. BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2013,171(2):395-412.
APA Huang, Wei-Ping,Sun, Hang,Deng, Tao,Razafimandimbison, Sylvain G.,Nie, Ze-Long,&Wen, Jun.(2013).Molecular phylogenetics and biogeography of the eastern Asian-eastern North American disjunct Mitchella and its close relative Damnacanthus (Rubiaceae, Mitchelleae).BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,171(2),395-412.
MLA Huang, Wei-Ping,et al."Molecular phylogenetics and biogeography of the eastern Asian-eastern North American disjunct Mitchella and its close relative Damnacanthus (Rubiaceae, Mitchelleae)".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 171.2(2013):395-412.
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