Climate niche differentiation between two passerines despite ongoing gene flow

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	Climate niche differentiation between two passerines despite ongoing gene flow
	Shaner PJL 1; Tsao TH 1; Lin RC 1; Liang W 2; Yeh CF 1; Yang XJ 3; Lei FM 4; Zhou F 5; Yang CC 2; Le MH 6
刊名	JOURNAL OF ANIMAL ECOLOGY
	2015
卷号	84 期号:3 页码:829-839
关键词	divergence with gene flow ecological niche modelling niche evolution parapatry secondary contact speciation
通讯作者	t43028@ntnu.edu.tw
合作状况	其它
英文摘要	Niche evolution underpins the generation and maintenance of biological diversity, but niche conservatism, in which niches remain little changed over time in closely related taxa, and the role of ecology in niche evolution are continually debated. To test whether climate niches are conserved in two closely related passerines in East Asia - the vinous-throated (Paradoxornis webbianus) and ashy-throated (P.alphonsianus) parrotbills - we established their potential allopatric and sympatric regions using ecological niche models and compared differences in their climate niches using niche overlap indices in background tests and multivariate statistical analyses. We also used polymorphism data on 44 nuclear genes to infer their divergence demography. We found that these two parrotbills occupy different climate niches, in both their allopatric and potential sympatric regions. Because the potential sympatric region is the area predicted to be suitable for both parrotbills based on the ecological niche models, it can serve as a natural common garden. Therefore, their observed niche differences in this potential sympatry were not simply rendered by phenotypic plasticity and probably had a genetic basis. Our genetic analyses revealed that the two parrotbills are not evolutionarily independent for the most recent part of their divergence history. The two parrotbills diverged c. 856000years ago and have had substantial gene flow since a presumed secondary contact c. 290000years ago. This study provides an empirical case demonstrating that climate niches may not be homogenized in nascent species in spite of substantial, ongoing gene flow, which in turn suggests a role for ecology in promoting and maintaining diversification among incipient species.
收录类别	SCI
资助信息	This project was funded by a grant from National Science Council of Taiwan to SHL, National Natural Science Foundation of China (Nos. 31071938, 31272328) and Program for New Century Excellent Talents in University (NCET-10- 0111) to WL.
语种	英语
公开日期	2015-06-09
内容类型	期刊论文
源URL	[http://159.226.149.42:8088/handle/152453/8350]
专题	昆明动物研究所_鸟类学昆明动物研究所_遗传资源与进化国家重点实验室
作者单位	1.Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan 2.Ministry of Education Key Laboratory for Tropical Plant and Animal Ecology, College of Life Sciences, Hainan Normal University, Haikou 571158, China 3.China State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China 4.Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, China 5.College of Animal Science and Technology, Guangxi University, Nanning 530005, China 6.Department of Zoological Museum, Institute of Ecology and Biological Resources, 18 Hoang Quoc Viet – Cau Giay, Hanoi, VietNam 7.Department of Natural Resources and Environmental Studies, National Dong Hwa University, Hualien 97401, Taiwan
推荐引用方式 GB/T 7714	Shaner PJL,Tsao TH,Lin RC,et al. Climate niche differentiation between two passerines despite ongoing gene flow[J]. JOURNAL OF ANIMAL ECOLOGY,2015,84(3):829-839.
APA	Shaner PJL.,Tsao TH.,Lin RC.,Liang W.,Yeh CF.,...&Li SH[*].(2015).Climate niche differentiation between two passerines despite ongoing gene flow.JOURNAL OF ANIMAL ECOLOGY,84(3),829-839.
MLA	Shaner PJL,et al."Climate niche differentiation between two passerines despite ongoing gene flow".JOURNAL OF ANIMAL ECOLOGY 84.3(2015):829-839.