Intercontinental biogeography of subfamily Orontioideae (Symplocarpus, Lysichiton, and Orontium) of Araceae in eastern Asia and North America
Ze-Long Nie; Hang Sun; Heng Li; Jun Wen
2006-07-01
发表期刊MOLECULAR PHYLOGENETICS AND EVOLUTION
ISSN1055-7903
卷号40期号:1页码:155-165
摘要Symplocarpus, Lysichiton, and Orontium (Orontioideae) are three of the few north temperate genera of the primarily tropical Araceae. Symplocarpus is disjunctly distributed in eastern Asia (3 spp.) and eastern North America (1 sp.); Lysichiton has an intercontinental discontinuous distribution in eastern Asia (1 sp.) and northwestern North America (1 sp.); and the monotypic Orontium is restricted to eastern North America. Phylogenetic analysis of the trnL-F and ndhF sequences supports (1) the monophyly of both Symplocarpus and Lysichiton, (2) the sister-group relationship of Symplocarpus and Lysichiton, and (3) the clade of Orontium, Symplocarpus, and Lysichiton. Although Symplocarpus shows a much wider disjunction than Lysichiton, the estimated divergence time of the former [4.49 +/- 1.69 or 6.88 +/- 4.18 million years ago (mya)] was similar to that of the latter (4.02 +/- 1.60 or 7.18 +/- 4.33 mya) based on the penalized likelihood and the Bayesian dating methods, respectively. Eastern Asia was suggested to be the ancestral area of the Symplocarpus Lysichiton clade based on the dispersal-vicariance analysis. Our biogeographic results support independent migrations of Symplocarpus and Lysichiton across the Bering land bridge in the late Tertiary (Pliocene/late Miocene). Fossil evidence suggests Orontioideae dated back to the late Cretaceous in the temperate Northern Hemisphere (72 mya). The relative rate test shows similar substitution rates of the trnL-F sequences between the proto and the true aroids, although the latter has substantially higher species diversity. The proto Araceae perhaps suffered from a higher rate of extinction in the temperate zone associated with periods of climatic cooling in the Tertiary. (c) 2006 Elsevier Inc. All rights reserved.
关键词Araceae Disjunction Eastern Asia Eastern North America Orontium Lysichiton Symplocarpus Western North America
学科领域Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
DOI10.1016/j.ympev.2006.03.012
收录类别SCI
语种英语
WOS研究方向Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
WOS类目Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
WOS记录号WOS:000238805700014
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被引频次:36[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/2693
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
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Ze-Long Nie,Hang Sun,Heng Li,et al. Intercontinental biogeography of subfamily Orontioideae (Symplocarpus, Lysichiton, and Orontium) of Araceae in eastern Asia and North America[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2006,40(1):155-165.
APA Ze-Long Nie,Hang Sun,Heng Li,&Jun Wen.(2006).Intercontinental biogeography of subfamily Orontioideae (Symplocarpus, Lysichiton, and Orontium) of Araceae in eastern Asia and North America.MOLECULAR PHYLOGENETICS AND EVOLUTION,40(1),155-165.
MLA Ze-Long Nie,et al."Intercontinental biogeography of subfamily Orontioideae (Symplocarpus, Lysichiton, and Orontium) of Araceae in eastern Asia and North America".MOLECULAR PHYLOGENETICS AND EVOLUTION 40.1(2006):155-165.
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