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题名: Phylogenetic assessment and biogeographic analyses of tribe Peracarpeae (Campanulaceae)
作者: Zhou, Z ; Wen, J ; Li, GD ; Sun Hang(孙航)
刊名: PLANT SYSTEMATICS AND EVOLUTION
关键词: Curculigo orchioides ; cycloartane triterpenoid glycoside ; curculigosaponins N-O ; PHENOLIC GLYCOSIDES
英文摘要: Peracarpeae is a small tribe consisting of three genera: Homocodon, Heterocodon and Peracarpa, with a disjunct distribution between eastern Asia and western North America. Homocodon is endemic to southwestern China and was previously placed in the western North American genus Heterocodon. Our phylogenetic analysis using four plastid markers (matK, atpB, rbcL and trnL-F) suggests the polyphyly of Peracarpeae. Homocodon is sister to a clade consisting of the eastern Asian Adenophora, Hanabusaya and species of Campanula from the Mediterranean region and North America, rather than forming a clade with Heterocodon. Homocodon and its Eurasia relatives are estimated to have diverged in the early Miocene (16.84 mya, 95% HPD 13.35-21.45 mya). The eastern Asian Peracarpa constitutes a clade with the North American Heterocodon, Githopsis and three species of Campanula, supporting a disjunction between eastern Asia and North America in Campanulaceae. The Asian-North American disjunct lineages diverged in the early Miocene (16.17 mya, 95% HPD 13.12-20.9 mya). The biogeographic analyses suggest that Homocodon may be a relict of an early radiation in eastern Asia, and that Peracarpa and its closest North American relatives most likely originated from a Eurasian ancestor.
出版日期: 2012
卷号: 298, 期号:2, 页码:323-336
语种: 英语
收录类别: sci
学科分类: Plant Sciences; Evolutionary Biology
ISSN号: 0378-2697
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/10489
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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Zhou, Z; Wen, J; Li, GD; Sun, H.Phylogenetic assessment and biogeographic analyses of tribe Peracarpeae (Campanulaceae),PLANT SYSTEMATICS AND EVOLUTION,2012,298(2):323-336
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