DOI: 10.1111/ele.12566
Scopus记录号: 2-s2.0-84969389435
论文题名: The ghosts of selection past reduces the probability of plastic rescue but increases the likelihood of evolutionary rescue to novel stressors in experimental populations of wild yeast
作者: Samani P. ; Bell G.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期: 3 起始页码: 289
结束页码: 298
语种: 英语
英文关键词: Adaptation
; Evolutionary history
; Evolutionary rescue
; Evolutionary response
; Extinction
; General environmental stress response
; Phenotypic plasticity
; Plastic (physiological) response
; Saccharomyces paradoxus
; Stressors
Scopus关键词: adaptation
; environmental change
; environmental stress
; evolutionary biology
; experimental study
; extinction
; hypothesis testing
; persistence
; phenotypic plasticity
; physiological response
; probability
; starvation
; wild population
; yeast
; Saccharomyces paradoxus
; adaptation
; evolution
; genetic selection
; genetics
; physiology
; Saccharomyces
; Adaptation, Physiological
; Biological Evolution
; Saccharomyces
; Selection, Genetic
英文摘要: Persistence by adaptation is called evolutionary rescue. Evolutionary rescue is more likely in populations that have been previously exposed to lower doses of the same stressor. Environmental fluctuations might also reduce the possibility of rescue, but little is known about the effect of evolutionary history on the likelihood of rescue. In this study, we hypothesised that the ubiquitous operation of generalised stress responses in many organisms increases the likelihood of rescue after exposure to other stressors. We tested this hypothesis with experimental populations that had been exposed to long-term starvation and were then selected on different, unrelated stressors. We found that prior adaptation to starvation imposes contrary effects on the plastic and evolutionary responses of populations to subsequent stressors. When first exposed to new stressors, such populations become extinct more often. If they survive the initial exposure to the new stressors, however, they are more likely to undergo evolutionary rescue. © 2016 John Wiley & Sons Ltd/CNRS.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107797
Appears in Collections: 气候减缓与适应
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作者单位: Biology Department, McGill University, Montreal, QC, Canada
Recommended Citation:
Samani P.,Bell G.. The ghosts of selection past reduces the probability of plastic rescue but increases the likelihood of evolutionary rescue to novel stressors in experimental populations of wild yeast[J]. Ecology Letters,2016-01-01,19(3)