气候变化领域集成服务门户(CCPortal): How differing modes of non-genetic inheritance affect population viability in fluctuating environments

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DOI	10.1111/ele.13355
	How differing modes of non-genetic inheritance affect population viability in fluctuating environments
	Proulx S.R.; Dey S.; Guzella T.; Teotónio H.
发表日期	2019
ISSN	1461023X
卷号	22 期号:11
英文摘要	Different modes of non-genetic inheritance are expected to affect population persistence in fluctuating environments. We here analyse Caenorhabditis elegans density-independent per capita growth rate time series on 36 populations experiencing six controlled sequences of challenging oxygen level fluctuations across 60 generations, and parameterise competing models of non-genetic inheritance in order to explain observed dynamics. Our analysis shows that phenotypic plasticity and anticipatory maternal effects are sufficient to explain growth rate dynamics, but that a carryover model where ‘epigenetic’ memory is imperfectly transmitted and might be reset at each generation is a better fit to the data. We further find that this epigenetic memory is asymmetric since it is kept for longer when populations are exposed to the more challenging environment. Our analysis suggests that population persistence in fluctuating environments depends on the non-genetic inheritance of phenotypes whose expression is regulated across multiple generations. © 2019 John Wiley & Sons Ltd/CNRS
英文关键词	Autocorrelation; Bayesian analysis; C. elegans; carryover; epigenetics; experimental time series; fitness; fluctuating environments; growth rates; maternal effects
语种	英语
scopus关键词	Caenorhabditis elegans; adaptation; animal; Caenorhabditis elegans; phenotype; Adaptation, Physiological; Animals; Caenorhabditis elegans; Phenotype
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/121019
作者单位	Department of Ecology, Evolution, and Marine Biology, UC Santa Barbara, Santa Barbara, CA 93106, United States; Institut de Biologie de L’École Normale Suṕerieure, CNRS, Inserm, PSL Research University, Paris, F-75005, France
推荐引用方式 GB/T 7714	Proulx S.R.,Dey S.,Guzella T.,et al. How differing modes of non-genetic inheritance affect population viability in fluctuating environments[J],2019,22(11).
APA	Proulx S.R.,Dey S.,Guzella T.,&Teotónio H..(2019).How differing modes of non-genetic inheritance affect population viability in fluctuating environments.Ecology Letters,22(11).
MLA	Proulx S.R.,et al."How differing modes of non-genetic inheritance affect population viability in fluctuating environments".Ecology Letters 22.11(2019).