气候变化领域集成服务门户(CCPortal): Reduced phenotypic plasticity evolves in less predictable environments

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DOI	10.1111/ele.13598
	Reduced phenotypic plasticity evolves in less predictable environments
	Leung C.; Rescan M.; Grulois D.; Chevin L.-M.
发表日期	2020
ISSN	1461023X
起始页码	1664
结束页码	1672
卷号	23 期号:11
英文摘要	Phenotypic plasticity is a prominent mechanism for coping with variable environments, and a key determinant of extinction risk. Evolutionary theory predicts that phenotypic plasticity should evolve to lower levels in environments that fluctuate less predictably, because they induce mismatches between plastic responses and selective pressures. However, this prediction is difficult to test in nature, where environmental predictability is not controlled. Here, we exposed 32 lines of the halotolerant microalga Dunaliella salina to ecologically realistic, randomly fluctuating salinity, with varying levels of predictability, for 500 generations. We found that morphological plasticity evolved to lower degrees in lines that experienced less predictable environments. Evolution of plasticity mostly concerned phases with slow population growth, rather than the exponential phase where microbes are typically phenotyped. This study underlines that long-term experiments with complex patterns of environmental change are needed to test theories about population responses to altered environmental predictability, as currently observed under climate change. © 2020 The Authors. Ecology Letters published by John Wiley & Sons Ltd.
关键词	Dunaliella salina environmental stochasticity experimental evolution fluctuating environment Phenotypic plasticity predictability
英文关键词	climate change; environmental change; extinction risk; microalga; phenotypic plasticity; population growth; Dunaliella salina; adaptation; environment; evolution; phenotype; population growth; Adaptation, Physiological; Biological Evolution; Environment; Phenotype; Population Growth
语种	英语
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/204250
作者单位	CEFE, Université de Montpellier, CNRS, EPHE, IRD, Université Paul Valéry Montpellier 3, Montpellier, France
推荐引用方式 GB/T 7714	Leung C.,Rescan M.,Grulois D.,et al. Reduced phenotypic plasticity evolves in less predictable environments[J],2020,23(11).
APA	Leung C.,Rescan M.,Grulois D.,&Chevin L.-M..(2020).Reduced phenotypic plasticity evolves in less predictable environments.Ecology Letters,23(11).
MLA	Leung C.,et al."Reduced phenotypic plasticity evolves in less predictable environments".Ecology Letters 23.11(2020).