DOI: 10.1111/ele.12388
Scopus记录号: 2-s2.0-84916894731
论文题名: Locally adapted traits maintained in the face of high gene flow
作者: Fitzpatrick S.W. ; Gerberich J.C. ; Kronenberger J.A. ; Angeloni L.M. ; Funk W.C.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期: 1 起始页码: 37
结束页码: 47
语种: 英语
英文关键词: Adaptive divergence
; Eco-evolutionary dynamics
; Gene flow
; Natural selection
; Poecilia reticulata
Scopus关键词: Poecilia reticulata
; microsatellite DNA
; adaptation
; animal
; female
; gene flow
; genetics
; genotype
; male
; phenotype
; Poecilia
; population genetics
; predation
; reproductive fitness
; Adaptation, Physiological
; Animals
; Female
; Gene Flow
; Genetic Fitness
; Genetics, Population
; Genotype
; Male
; Microsatellite Repeats
; Phenotype
; Poecilia
; Predatory Behavior
英文摘要: Gene flow between phenotypically divergent populations can disrupt local adaptation or, alternatively, may stimulate adaptive evolution by increasing genetic variation. We capitalised on historical Trinidadian guppy transplant experiments to test the phenotypic effects of increased gene flow caused by replicated introductions of adaptively divergent guppies, which were translocated from high- to low-predation environments. We sampled two native populations prior to the onset of gene flow, six historic introduction sites, introduction sources and multiple downstream points in each basin. Extensive gene flow from introductions occurred in all streams, yet adaptive phenotypic divergence across a gradient in predation level was maintained. Descendants of guppies from a high-predation source site showed high phenotypic similarity with native low-predation guppies in as few as ~12 generations after gene flow, likely through a combination of adaptive evolution and phenotypic plasticity. Our results demonstrate that locally adapted phenotypes can be maintained despite extensive gene flow from divergent populations. © 2014 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/107973
Appears in Collections: 气候减缓与适应
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作者单位: Department of Biology, Colorado State University, 1878 Campus Delivery, Fort Collins, CO, United States; Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, United States
Recommended Citation:
Fitzpatrick S.W.,Gerberich J.C.,Kronenberger J.A.,et al. Locally adapted traits maintained in the face of high gene flow[J]. Ecology Letters,2015-01-01,18(1)