A complex pattern of post-divergence expansion, contraction, introgression, and asynchronous responses to Pleistocene climate changes in two Dipelta sister species from western China
Tian, Bin1,2; Fu, Yi2; Milne, Richard, I3; Mao, Kang-Shan4; Sun, Yong-Shuai5,6; Ma, Xiang-Guang1; Sun, Hang1
通讯作者Sun, Yong-Shuai(sunyongshuai@xtbg.ac.cn) ; Sun, Hang(sunhang@mail.kib.ac.cn)
2019-08-20
发表期刊JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN1674-4918
页码16
摘要The well-known vicariance and dispersal models dominate in understanding the allopatric pattern for related species and presume the simultaneous occurrence of speciation and biogeographic events. However, the formation of allopatry could postdate the species divergence. We examined this hypothesis using DNA sequence data from three chloroplast fragments and five nuclear loci of Dipelta floribunda Maxim. and D. yunnanensis Franch, two shrub species with the circum Sichuan Basin distribution, combining the climatic niche modeling approach. The best-fit model supported by the approximate Bayesian computation analysis indicated that D. floribunda and D. yunnanensis diverged during the mid-Pleistocene period, consistent with the largest glacial period in the Qinghai-Tibet Plateau. The historically interspecific gene flow was identified, but seemed to have ceased after the last interglacial period, when the range of D. floribunda moved northward from the south of the Sichuan Basin. Furthermore, populations of D. floribunda had expanded obviously in the north of the Sichuan Basin after the last glacial maximum (LGM). Relatively, the range of D. yunnanensis expanded before the LGM, and reduced during the post-LGM especially in the north of the Sichuan Basin, reflecting the asynchronous responses of related species to contemporary climate changes. Our results suggested that complex topography should be considered in understanding distributional patterns, even for closely related species and their demographic responses.
关键词allopatric pattern asynchronous demographic response hABC introgression Pleistocene climate change Sichuan Basin
DOI10.1111/jse.12524
收录类别SCI
语种英语
WOS记录号WOS:000481939900001
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/68687
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
通讯作者Sun, Yong-Shuai; Sun, Hang
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog, Kunming 650204, Yunnan, Peoples R China
2.Southwest Forestry Univ, State Forestry Adm, Key Lab Biodivers Conservat Southwest China, Kunming 650224, Yunnan, Peoples R China
3.Univ Edinburgh, Inst Mol Plant Sci, Edinburgh EH9 3JH, Midlothian, Scotland
4.Sichuan Univ, Coll Life Sci, Minist Educ, Key Lab Bioresource & Ecoenvironm, Chengdu 610065, Sichuan, Peoples R China
5.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China
6.Chinese Acad Sci, Ctr Plant Ecol, Core Bot Gardens, Mengla 666303, Yunnan, Peoples R China
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Tian, Bin,Fu, Yi,Milne, Richard, I,et al. A complex pattern of post-divergence expansion, contraction, introgression, and asynchronous responses to Pleistocene climate changes in two Dipelta sister species from western China[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2019:16.
APA Tian, Bin.,Fu, Yi.,Milne, Richard, I.,Mao, Kang-Shan.,Sun, Yong-Shuai.,...&Sun, Hang.(2019).A complex pattern of post-divergence expansion, contraction, introgression, and asynchronous responses to Pleistocene climate changes in two Dipelta sister species from western China.JOURNAL OF SYSTEMATICS AND EVOLUTION,16.
MLA Tian, Bin,et al."A complex pattern of post-divergence expansion, contraction, introgression, and asynchronous responses to Pleistocene climate changes in two Dipelta sister species from western China".JOURNAL OF SYSTEMATICS AND EVOLUTION (2019):16.
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