Phylogeny and biogeography of Sassafras (Lauraceae) disjunct between eastern Asia and eastern North America

doi:10.1007/s00606-007-0550-1

	Phylogeny and biogeography of Sassafras (Lauraceae) disjunct between eastern Asia and eastern North America
	Nie, Z.-L.; Wen, J.; Sun, H.
	2007-09-01
发表期刊	PLANT SYSTEMATICS AND EVOLUTION
ISSN	0378-2697
卷号	267 期号:1-4 页码:191-203
摘要	Sassafras (Lauraceae) consists of three species disjunct between eastern Asia (S. tzumu and S. randaiense) and eastern North America (S. albidum). Phylogenetic analysis based on sequences of nuclear ribosomal ITS and three chloroplast non-coding regions (rpl16, trnL-F, and psbA-trnH) showed that Sassafras is monophyletic and that the eastern North American S. albidum is sister to the clade of its two eastern Asian counterparts. Their intercontinental divergence was estimated to be 13.80 +/- 2.29-16.69 +/- 2.52 million years ago (mya) using the penalized likelihood method with the ITS and three chloroplast markers. Biogeographic analyses combined with fossil evidence suggest that Sassafras has a relict distribution in the Northern Hemisphere without a Gondwanan link. The divergence time of the two eastern Asian species (the continental Chinese Sassafras tzumu and S. randaiense endemic to Taiwan) is estimated to be 0.61 +/- 0.75-2.23 +/- 0.76 mya. Sassafras randaiense from Taiwan was most likely derived from an ancestor from continental China.
关键词	Disjunction Eastern Asia Eastern North America Lauraceae Sassafras Taiwan
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/151853/15526
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, Inst Bot, Lab Biodivers & Biogeog, Kunming, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China 3.Smithsonian Inst, Natl Museum Nat Hist, Dept Bot, Washington, DC 20560 USA 4.Chinese Acad Sci, Inst Bot, Lab Systemat & Evolut Bot, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Nie, Z.-L.,Wen, J.,Sun, H.. Phylogeny and biogeography of Sassafras (Lauraceae) disjunct between eastern Asia and eastern North America[J]. PLANT SYSTEMATICS AND EVOLUTION,2007,267(1-4):191-203.
APA	Nie, Z.-L.,Wen, J.,&Sun, H..(2007).Phylogeny and biogeography of Sassafras (Lauraceae) disjunct between eastern Asia and eastern North America.PLANT SYSTEMATICS AND EVOLUTION,267(1-4),191-203.
MLA	Nie, Z.-L.,et al."Phylogeny and biogeography of Sassafras (Lauraceae) disjunct between eastern Asia and eastern North America".PLANT SYSTEMATICS AND EVOLUTION 267.1-4(2007):191-203.

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