DOI: 10.1111/ele.12891
Scopus记录号: 2-s2.0-85038001102
论文题名: Hybridization can promote adaptive radiation by means of transgressive segregation
作者: Kagawa K. ; Takimoto G.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2018
卷: 21, 期: 2 起始页码: 264
结束页码: 274
语种: 英语
英文关键词: Adaptive radiation
; ecological speciation
; evolutionary simulation
; hybridization
; individual-based model
; sympatric speciation
; transgressive segregation
英文摘要: Understanding the mechanisms of rapid adaptive radiation has been a central problem of evolutionary ecology. Recently, there is a growing recognition that hybridization between different evolutionary lineages can facilitate adaptive radiation by creating novel phenotypes. Yet, theoretical plausibility of this hypothesis remains unclear because, for example, hybridization can negate pre-existing species richness. Here, we theoretically investigate whether and under what conditions hybridization promotes ecological speciation and adaptive radiation using an individual-based model to simulate genome evolution following hybridization between two allopatrically evolved lineages. The model demonstrated that transgressive segregation through hybridization can facilitate adaptive radiation, most powerfully when novel vacant ecological niches are highly dissimilar, phenotypic effect size of mutations is small and there is moderate genetic differentiation between parental lineages. These results provide a theoretical basis for the effect of hybridization facilitating adaptive radiation. © 2017 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107501
Appears in Collections: 气候减缓与适应
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作者单位: The Institute of Statistical Mathematics, 10-3 Midori-cho, Tachikawa, Tokyo, Japan; Department of Fish Ecology and Evolution, Center for Ecology, Evolution & Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland; Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan
Recommended Citation:
Kagawa K.,Takimoto G.. Hybridization can promote adaptive radiation by means of transgressive segregation[J]. Ecology Letters,2018-01-01,21(2)