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题名: Molecular phylogeny of Anaphalis (Asteraceae, Gnaphalieae) with biogeographic implications in the Northern Hemisphere
作者: Nie, Ze-Long1, 2; Funk, Vicki2; Sun Hang(孙航)1; Deng, Tao1; Meng, Ying1, 3; Wen, Jun2
刊名: JOURNAL OF PLANT RESEARCH
关键词: Anaphalis ; Asian-North American disjunction ; Asteraceae ; Eastern Himalayas ; Gnaphalieae ; Phylogeny
英文摘要: Anaphalis is the largest Asian genus in the tribe Gnaphalieae (Asteraceae) and has its greatest species diversity in the eastern Himalayas. The nuclear internal and external transcribed spacers were sequenced for Anaphalis species, with an emphasis on the eastern Himalayan taxa to examine the monophyly and construct the phylogenetic relationships of and within the genus. The results suggest that all species of Anaphalis are nested with Helichrysum, showing a close relationship with a Mediterranean-Asian group of Helichrysum. Although the monophyly of Anaphalis is only weakly supported, two clades within the genus are well recognized, each consisting of two subgroups. The inferred phylogenetic relationships within Anaphalis correspond to the shape of leaf base, rather than the morphology of the capitula and phyllaries that are usually used for species delimitation and classification in the genus. All four subgroups of Anaphalis are common and diversified in the eastern Himalayas with multiple dispersals out of this region. The sole North American species of Anaphalis is best hypothesized to be the result of long-distance dispersal or overland migration via Bering land bridge from Asia. Our analyses suggest that the extant distribution of Anaphalis has most likely resulted one radiation into the eastern Himalayas followed by repeated independent dispersals and/or radiations mostly into eastern Asia but also into the western Himalayas, North America, and southeast Asia.
出版日期: 2013
卷号: 126, 期号:1, 页码:17-32
语种: 英语
ISSN号: 0918-9440
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/16264
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, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650201, Yunnan, Peoples R China
2.Smithsonian Inst, Natl Museum Nat Hist, Dept Bot, Washington, DC 20013 USA
3.Chinese Acad Sci, Inst Tibetan Plateau Res Kunming, Kunming Inst Bot, Kunming 650201, Yunnan, Peoples R China

Recommended Citation:
Nie, Ze-Long; Funk, Vicki; Sun, Hang; Deng, Tao; Meng, Ying; Wen, Jun.Molecular phylogeny of Anaphalis (Asteraceae, Gnaphalieae) with biogeographic implications in the Northern Hemisphere,JOURNAL OF PLANT RESEARCH,2013,126(1):17-32
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