气候变化领域集成服务门户(CCPortal): Evolutionary response when selection and genetic variation covary across environments

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DOI	10.1111/ele.12662
	Evolutionary response when selection and genetic variation covary across environments
	Wood C.W.; Brodie E.D.; 3rd
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:10
英文摘要	Although models of evolution usually assume that the strength of selection on a trait and the expression of genetic variation in that trait are independent, whenever the same ecological factor impacts both parameters, a correlation between the two may arise that accelerates trait evolution in some environments and slows it in others. Here, we address the evolutionary consequences and ecological causes of a correlation between selection and expressed genetic variation. Using a simple analytical model, we show that the correlation has a modest effect on the mean evolutionary response and a large effect on its variance, increasing among-population or among-generation variation in the response when positive, and diminishing variation when negative. We performed a literature review to identify the ecological factors that influence selection and expressed genetic variation across traits. We found that some factors - temperature and competition - are unlikely to generate the correlation because they affected one parameter more than the other, and identified others - most notably, environmental novelty - that merit further investigation because little is known about their impact on one of the two parameters. We argue that the correlation between selection and genetic variation deserves attention alongside other factors that promote or constrain evolution in heterogeneous landscapes. © 2016 John Wiley & Sons Ltd/CNRS.
英文关键词	Anthropogenic change; breeder's equation; cryptic genetic variation; environmental heterogeneity; heritability; novel environments; response to selection
学科领域	anthropogenic effect; environmental factor; equation; evolutionary theory; gene expression; genetic variation; heritability; heterogeneity; literature review; natural selection; numerical model; animal; biological model; ecosystem; evolution; genetic selection; genetic variation; Animals; Biological Evolution; Ecosystem; Genetic Variation; Models, Genetic; Selection, Genetic
语种	英语
scopus关键词	anthropogenic effect; environmental factor; equation; evolutionary theory; gene expression; genetic variation; heritability; heterogeneity; literature review; natural selection; numerical model; animal; biological model; ecosystem; evolution; genetic selection; genetic variation; Animals; Biological Evolution; Ecosystem; Genetic Variation; Models, Genetic; Selection, Genetic
来源期刊	Ecology letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118490
作者单位	Mountain Lake Biological Station and Department of Biology, University of Virginia, Charlottesville, VA, 22904, USA, United States
推荐引用方式 GB/T 7714	Wood C.W.,Brodie E.D.,3rd. Evolutionary response when selection and genetic variation covary across environments[J],2016,19(10).
APA	Wood C.W.,Brodie E.D.,&3rd.(2016).Evolutionary response when selection and genetic variation covary across environments.Ecology letters,19(10).
MLA	Wood C.W.,et al."Evolutionary response when selection and genetic variation covary across environments".Ecology letters 19.10(2016).