globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13639
论文题名:
Restricted gene flow and local adaptation highlight the vulnerability of high-latitude reefs to rapid environmental change
作者: Thomas L.; Kennington W.J.; Evans R.D.; Kendrick G.A.; Stat M.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期:6
起始页码: 2197
结束页码: 2205
语种: 英语
英文关键词: gene flow ; genotyping-by-sequencing ; local adaptation ; Pocillopora damicornis ; Western Australia
Scopus关键词: Anthozoa ; Pocillopora damicornis
英文摘要: Global climate change poses a serious threat to the future health of coral reef ecosystems. This calls for management strategies that are focused on maximizing the evolutionary potential of coral reefs. Fundamental to this is an accurate understanding of the spatial genetic structure in dominant reef-building coral species. In this study, we apply a genotyping-by-sequencing approach to investigate genome-wide patterns of genetic diversity, gene flow, and local adaptation in a reef-building coral, Pocillopora damicornis, across 10 degrees of latitude and a transition from temperate to tropical waters. We identified strong patterns of differentiation and reduced genetic diversity in high-latitude populations. In addition, genome-wide scans for selection identified a number of outlier loci putatively under directional selection with homology to proteins previously known to be involved in heat tolerance in corals and associated with processes such as photoprotection, protein degradation, and immunity. This study provides genomic evidence for both restricted gene flow and local adaptation in a widely distributed coral species, and highlights the potential vulnerability of leading-edge populations to rapid environmental change as they are locally adapted, reproductively isolated, and have reduced levels of genetic diversity. © 2017 John Wiley & Sons Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60929
Appears in Collections:影响、适应和脆弱性

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作者单位: The UWA Oceans Institute, School of Plant Biology, The University of Western Australia, Perth, WA, Australia; Centre for Evolutionary Biology, School of Animal Biology, The University of Western Australia, Perth, WA, Australia; Science and Conservation Division, Department of Parks and Wildlife, Marine Science Program, Perth, WA, Australia; Trace and Environmental DNA (TrEnD) Laboratory, Department of Environment and Agriculture, Curtin University, Perth, WA, Australia

Recommended Citation:
Thomas L.,Kennington W.J.,Evans R.D.,et al. Restricted gene flow and local adaptation highlight the vulnerability of high-latitude reefs to rapid environmental change[J]. Global Change Biology,2017-01-01,23(6)
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