干旱区生态环境知识资源中心(Arid): Adaptation of plasticity to projected maximum temperatures and across climatically defined bioregions

Arid

DOI	10.1073/pnas.1921124117
	Adaptation of plasticity to projected maximum temperatures and across climatically defined bioregions
	Sandoval-Castillo, Jonathan; Gates, Katie; Brauer, Chris J.; Smith, Steve; Bernatchez, Louis; Beheregaray, Luciano B.
通讯作者	Beheregaray, LB
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN	0027-8424
出版年	2020
卷号	117 期号:29 页码:17112-17121
英文摘要	Resilience to environmental stressors due to climate warming is influenced by local adaptations, including plastic responses. The recent literature has focused on genomic signatures of climatic adaptation, but little is known about how plastic capacity may be influenced by biogeographic and evolutionary processes. We investigate phenotypic plasticity as a target of climatic selection, hypothesizing that lineages that evolved in warmer climates will exhibit greater plastic adaptive resilience to upper thermal stress. This was experimentally tested by comparing transcriptomic responses within and among temperate, subtropical, and desert ecotypes of Australian rainbowfish subjected to contemporary and projected summer temperatures. Critical thermal maxima were estimated, and ecological niches delineated using bioclimatic modeling. A comparative phylogenetic expression variance and evolution model was used to assess plastic and evolved changes in gene expression. Although 82% of all expressed genes were found in the three ecotypes, they shared expression patterns in only 5 out of 236 genes that responded to the climate change experiment. A total of 532 genes showed signals of adaptive (i.e., genetic-based) plasticity due to ecotype-specific directional selection, and 23 of those responded to projected summer tem-peratures. Network analyses demonstrated centrality of these genes in thermal response pathways. The greatest adaptive resil-ience to upper thermal stress was shown by the subtropical eco-type, followed by the desert and temperate ecotypes. Our findings indicate that vulnerability to climate change will be highly influ-enced by biogeographic factors, emphasizing the value of integra-tive assessments of climatic adaptive traits for accurate estimation of population and ecosystem responses.
英文关键词	climate change ecological genomics teleosts thermal biology climatic variability hypothesis
类型	Article
语种	英语
开放获取类型	Green Published, Other Gold
收录类别	SCI-E
WOS记录号	WOS:000553294300006
WOS关键词	THERMAL TOLERANCE ; PHENOTYPIC PLASTICITY ; GENE-EXPRESSION ; CLIMATE-CHANGE ; FRESH-WATER ; PHYLOGENETIC ANALYSIS ; MOUNTAIN PASSES ; EXTINCTION RISK ; EVOLUTION ; DIVERGENCE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325258
作者单位	[Sandoval-Castillo, Jonathan; Gates, Katie; Brauer, Chris J.; Smith, Steve; Beheregaray, Luciano B.] Flinders Univ S Australia, Mol Ecol Lab, Bedford Pk, SA 5042, Australia; [Smith, Steve] Univ Vet Med, Konrad Lorenz Inst Ethol, A-1160 Vienna, Austria; [Bernatchez, Louis] Univ Laval, Inst Biol Integrat & Syst, Quebec City, PQ G1V 0A6, Canada
推荐引用方式 GB/T 7714	Sandoval-Castillo, Jonathan,Gates, Katie,Brauer, Chris J.,et al. Adaptation of plasticity to projected maximum temperatures and across climatically defined bioregions[J],2020,117(29):17112-17121.
APA	Sandoval-Castillo, Jonathan,Gates, Katie,Brauer, Chris J.,Smith, Steve,Bernatchez, Louis,&Beheregaray, Luciano B..(2020).Adaptation of plasticity to projected maximum temperatures and across climatically defined bioregions.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(29),17112-17121.
MLA	Sandoval-Castillo, Jonathan,et al."Adaptation of plasticity to projected maximum temperatures and across climatically defined bioregions".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.29(2020):17112-17121.