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题名: Phylogeny and biogeography of Sassafras (Lauraceae) disjunct between eastern Asia and eastern North America
作者: Nie, Z.-L.; Wen, J.; Sun, H.
刊名: PLANT SYSTEMATICS AND EVOLUTION
出版日期: 2007-09-01
卷号: 267, 期号:1-4, 页码:191-203
关键词: disjunction ; eastern Asia ; eastern North America ; Lauraceae ; Sassafras ; Taiwan
学科分类: Plant Sciences; Evolutionary Biology
DOI: 10.1007/s00606-007-0550-1
通讯作者: Nie, ZL (reprint author), Chinese Acad Sci, Inst Bot, Lab Biodivers & Biogeog, Kunming, Peoples R China. wenj@si.edu
文章类型: Article
英文摘要: 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.
类目[WOS]: Plant Sciences ; Evolutionary Biology
研究领域[WOS]: Plant Sciences ; Evolutionary Biology
关键词[WOS]: NUCLEAR RIBOSOMAL DNA ; HISTORICAL BIOGEOGRAPHY ; MOLECULAR DIVERGENCE ; LIKELIHOOD APPROACH ; EVOLUTIONARY TREES ; LITSEA COMPLEX ; POTOMAC GROUP ; SEQUENCES ; CHLOROPLAST ; TAIWAN
收录类别: SCI
语种: 英语
WOS记录号: WOS:000249460600016
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/15526
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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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

Recommended Citation:
Nie, Z.-L.; Wen, J.; Sun, H..Phylogeny and biogeography of Sassafras (Lauraceae) disjunct between eastern Asia and eastern North America,PLANT SYSTEMATICS AND EVOLUTION,2007,267(1-4):191-203
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