DOI: 10.1111/ele.13466
论文题名: Eco-genetic additivity of diploids in allopolyploid wild wheats
作者: Huynh S. ; Broennimann O. ; Guisan A. ; Felber F. ; Parisod C.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期: 4 起始页码: 663
结束页码: 673
语种: 英语
中文关键词: Aegilops
; amplicon sequencing
; climate change
; comparative niche modelling
; comparative phylogeography
; niche conservatism
; polyploid speciation
; range filling
; species expansion
英文关键词: Aegilops
; diploidy
; ecosystem
; human
; phylogeography
; polyploidy
; wheat
; Diploidy
; Ecosystem
; Humans
; Phylogeography
; Polyploidy
; Triticum
英文摘要: Underpinnings of the distribution of allopolyploid species (hybrids with duplicated genome) along spatial and ecological gradients are elusive. As allopolyploid speciation combines the range of genetic and ecological characteristics of divergent diploids, allopolyploids initially show their additivity and are predicted to evolve differentiated ecological niches to establish in face of their competition. Here, we use four diploid wild wheats that differentially combined into four independent allopolyploid species to test for such additivity and assess the impact of ecological constraints on species ranges. Divergent genetic variation from diploids being fixed in heterozygote allopolyploids supports their genetic additivity. Spatial integration of comparative phylogeography and modelling of climatic niches supports ecological additivity of locally adapted diploid progenitors into allopolyploid species which subsequently colonised wide ranges. Allopolyploids fill suitable range to a larger extent than diploids and conservative evolution following the combination of divergent species appears to support their expansion under environmental changes. © 2020 John Wiley & Sons Ltd/CNRS Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166640
Appears in Collections: 气候变化与战略
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作者单位: Institute of Plant Sciences, University of Bern, Bern, Switzerland; Institute of Biology, University of Neuchâtel, Neuchatel, Switzerland; Department of Ecology & Evolution, University of Lausanne, Lausanne, Switzerland; Institute of Earth Surface Dynamics, University of Lausanne, Lausanne, Switzerland; Musée et Jardins botaniques cantonaux de Lausanne et Pont-de-Nant, Lausanne, Switzerland
Recommended Citation:
Huynh S.,Broennimann O.,Guisan A.,et al. Eco-genetic additivity of diploids in allopolyploid wild wheats[J]. Ecology Letters,2020-01-01,23(4)