气候变化领域集成服务门户(CCPortal): Genomic determinants of coral heat tolerance across latitudes

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DOI	10.1126/science.1261224
	Genomic determinants of coral heat tolerance across latitudes
	Dixon G.B.; Davies S.W.; Aglyamova G.A.; Meyer E.; Bay L.K.; Matz M.V.
发表日期	2015
ISSN	0036-8075
起始页码	1460
结束页码	1462
卷号	348 期号:6242
英文摘要	As global warming continues, reef-building corals could avoid local population declines through "genetic rescue" involving exchange of heat-tolerant genotypes across latitudes, but only if latitudinal variation in thermal tolerance is heritable. Here, we show an up-to-10-fold increase in odds of survival of coral larvae under heat stress when their parents come from a warmer lower-latitude location. Elevated thermal tolerance was associated with heritable differences in expression of oxidative, extracellular, transport, andmitochondrial functions that indicated a lack of prior stress. Moreover, two genomic regions strongly responded to selection for thermal tolerance in interlatitudinal crosses. These results demonstrate that variation in coral thermal tolerance across latitudes has a strong genetic basis and could serve as raw material for natural selection. © 2015, American Association for the Advancement of Science. All rights reserved.
英文关键词	coral; gene expression; gene flow; genome; global warming; heritability; larva; latitude; natural selection; population decline; survivorship; temperature tolerance; Article; coral; gene expression; genetic analysis; genomics; greenhouse effect; heat stress; heat tolerance; latitude; natural selection; nonhuman; priority journal; quantitative genetics; survival; acclimatization; animal; Anthozoa; coral reef; gene frequency; genetic marker; genetic selection; genetics; greenhouse effect; heat; larva; physiological stress; physiology; species extinction; Anthozoa; genetic marker; Acclimatization; Animals; Anthozoa; Coral Reefs; Extinction, Biological; Gene Expression; Gene Frequency; Genetic Markers; Global Warming; Hot Temperature; Larva; Selection, Genetic; Stress, Physiological
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243549
作者单位	Department of Integrative Biology, University of Texas at Austin, 205 W. 24th Street C0990, Austin, TX 78712, United States; Department of Integrative Biology, Oregon State University, 3106 Cordley Hall, Corvallis, OR 97331, United States; Australian Institute of Marine Science, PMB 3, Townsville MCQLD 4810, Australia
推荐引用方式 GB/T 7714	Dixon G.B.,Davies S.W.,Aglyamova G.A.,et al. Genomic determinants of coral heat tolerance across latitudes[J],2015,348(6242).
APA	Dixon G.B.,Davies S.W.,Aglyamova G.A.,Meyer E.,Bay L.K.,&Matz M.V..(2015).Genomic determinants of coral heat tolerance across latitudes.Science,348(6242).
MLA	Dixon G.B.,et al."Genomic determinants of coral heat tolerance across latitudes".Science 348.6242(2015).