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题名: Origins and evolution of cinnamon and camphor: A phylogenetic and historical biogeographical analysis of the Cinnamomum group (Lauraceae)
作者: Huang, Jian-Feng1; Li, Lang1; van der Werff, Henk2; Li, Hsi-Wen3; Rohwer, Jens G.4; Crayn, Darren M.5; Meng, Hong-Hu1, 9; van der Merwe, Marlien6; Conran, John G.7, 8; Li, Jie1
刊名: MOLECULAR PHYLOGENETICS AND EVOLUTION
关键词: Cinnamomum group ; Lauraceae ; Amphi-Pacific disjunction ; Boreotropical paleoflora ; Molecular phylogeny ; Biogeography
英文摘要: Tropical and subtropical amphi-Pacific disjunction is among the most fascinating distribution patterns, but received little attention. Here we use the fossil-rich Cinnamomum group, a primarily tropical and subtropical Asian lineage with some species distributed in Neotropics, Australasia and Africa to shed light upon this disjunction pattern. Phylogenetic and biogeographic analyses were carried out using sequences of three nuclear loci from 94 Cinnamomum group and 13 outgroup samples. Results show that although there are three clades within a monophyletic Cinnamomum group, Cinnamomum and previously recognized subdivisions within this genus were all rejected as natural groups. The Cinnamomum group appears to have originated in the widespread boreotropical paleoflora of Laurasia during the early Eocene (ca. 55 Ma). The formation and breakup of the boreotropics seems to have then played a key role in the formation of intercontinental disjunctions within the Cinnamomum group. The first cooling interval (5048 Ma) in the late early Eocene resulted in a floristic discontinuity between Eurasia and North America causing the tropical and subtropical amphi-Pacific disjunction. The second cooling interval in the mid Eocene (42-38 Ma) resulted in the fragmentation of the boreotropics within Eurasia, leading to an African-Asian disjunction. Multiple dispersal events from North into South America occurred from the early Eocene to late Miocene and a single migration event from Asia into Australia appears to have occurred in the early Miocene. (C) 2015 Elsevier Inc. All rights reserved.
出版日期: 2016-03-01
卷号: 96, 页码:33-44
DOI标识: 10.1016/j.ympev.2015.12.007
语种: 英语
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内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/26006
Appears in Collections:离退休_期刊论文

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作者单位: 1.Chinese Acad Sci, Plant Phylogenet & Conservat Grp, Ctr Integrat Conservat, Xishuangbanna Trop Bot Garden, Kunming 650223, Yunnan, Peoples R China
2.Missouri Bot Garden, POB 299, St Louis, MO 63166 USA
3.Chinese Acad Sci, Kunming Inst Bot, Herbarium KUN, Kunming 650204, Yunnan, Peoples R China
4.Univ Hamburg, Biozentrum, Klein Flottbek & Bot Garten, Ohnhorststr 18, D-22609 Hamburg, Germany
5.James Cook Univ, Australian Trop Herbarium, Cairns, Qld 4878, Australia
6.Royal Bot Gardens & Domain Trust, Natl Herbarium NSW, Sydney, NSW 2000, Australia
7.Univ Adelaide, Sch Biol Sci, Australian Ctr Evolutionary Biol & Biodivers, Adelaide, SA 5005, Australia
8.Univ Adelaide, Sch Biol Sci, Sprigg Geobiol Ctr, Adelaide, SA 5005, Australia
9.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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