Phylogeny and biogeographic diversification of Maianthemum (Ruscaceae: Polygonatae)

doi:10.1016/j.ympev.2008.07.017

	Phylogeny and biogeographic diversification of Maianthemum (Ruscaceae: Polygonatae)
	Meng, Ying 1,2,3; Wen, Jun 1,4,5; Nie, Ze-Long 1,3; Sun, Hang1 ; Yang, Yong-Ping1,2
	2008-11-01
发表期刊	MOLECULAR PHYLOGENETICS AND EVOLUTION
ISSN	1055-7903
卷号	49 期号:2 页码:424-434
摘要	Maianthemum (Ruscaceae) comprises 28-38 species and includes the two traditionally recognized genera: Maianthemum sensu stricto and Smilacina. Thirty-seven samples representing 22 species of Maianthemum and six closely related outgroup taxa were sequenced for eight chloroplast and nuclear markers (trnL-F, rps16, rpl16, psbA-trnH, rbcL, ndhF, trnK, and ITS) with a total length of nearly 10,000 base pairs. Phylogenetic analyses supported the monophyly of Maianthemum with Maianthemum sensu stricto nested within Smilacina. Almost all species from the eastern Himalayan region in SW China except for Maianthemum tatsienense and M. stenolobum form a well supported clade. This clade is characterized morphologically by short filaments and large anthers, relatively large flowers, and pubescent stems and leaves. Maianthemum tatsienense and M. stenolobum from SW to central China form another clade. The other species from eastern Asia (central to NE China and Japan) and the New World fall into several clades. The intercontinental disjunction between eastern Asia and North America in Maianthemum sensu stricto is estimated to be at 1.68 million years ago (mya) with the Bayesian relaxed clock relying on uncorrelated rates. A recent radiation at about 2.04 mya is suggested in the high mountains of SW China, corresponding to the geographical heterogeneity in that region after the uplift of the Himalayas. Long distance dispersal by birds may have facilitated the evolution of their intercontinental disjunction and their biogeographic diversifications in SW China. (C) 2008 Elsevier Inc. All rights reserved.; Maianthemum (Ruscaceae) comprises 28-38 species and includes the two traditionally recognized genera: Maianthemum sensu stricto and Smilacina. Thirty-seven samples representing 22 species of Maianthemum and six closely related outgroup taxa were sequenced for eight chloroplast and nuclear markers (trnL-F, rps16, rpl16, psbA-trnH, rbcL, ndhF, trnK, and ITS) with a total length of nearly 10,000 base pairs. Phylogenetic analyses supported the monophyly of Maianthemum with Maianthemum sensu stricto nested within Smilacina. Almost all species from the eastern Himalayan region in SW China except for Maianthemum tatsienense and M. stenolobum form a well supported clade. This clade is characterized morphologically by short filaments and large anthers, relatively large flowers, and pubescent stems and leaves. Maianthemum tatsienense and M. stenolobum from SW to central China form another clade. The other species from eastern Asia (central to NE China and Japan) and the New World fall into several clades. The intercontinental disjunction between eastern Asia and North America in Maianthemum sensu stricto is estimated to be at 1.68 million years ago (mya) with the Bayesian relaxed clock relying on uncorrelated rates. A recent radiation at about 2.04 mya is suggested in the high mountains of SW China, corresponding to the geographical heterogeneity in that region after the uplift of the Himalayas. Long distance dispersal by birds may have facilitated the evolution of their intercontinental disjunction and their biogeographic diversifications in SW China. (C) 2008 Elsevier Inc. All rights reserved.
关键词	Eastern Asia Eastern Himalaya Biogeographic Diversification Maianthemum North America Ruscaceae Smilacina
学科领域	Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
DOI	10.1016/j.ympev.2008.07.017
收录类别	SCI
语种	英语
WOS记录号	WOS:000261034400002
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/2625
专题	中国科学院青藏高原研究所昆明部
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Lab Biodivers & Biogeog, Kunming 650204, Yunnan, Peoples R China 2.Chinese Acad Sci, Inst Tibetan Plateau Res Kunming, Kunming 650204, Yunnan, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 4.Smithsonian Inst, Natl Museum Nat Hist, Dept Bot, Washington, DC 20013 USA 5.Chinese Acad Sci, Inst Bot, Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Meng, Ying,Wen, Jun,Nie, Ze-Long,et al. Phylogeny and biogeographic diversification of Maianthemum (Ruscaceae: Polygonatae)[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2008,49(2):424-434.
APA	Meng, Ying,Wen, Jun,Nie, Ze-Long,Sun, Hang,&Yang, Yong-Ping.(2008).Phylogeny and biogeographic diversification of Maianthemum (Ruscaceae: Polygonatae).MOLECULAR PHYLOGENETICS AND EVOLUTION,49(2),424-434.
MLA	Meng, Ying,et al."Phylogeny and biogeographic diversification of Maianthemum (Ruscaceae: Polygonatae)".MOLECULAR PHYLOGENETICS AND EVOLUTION 49.2(2008):424-434.

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