Genomic signatures in the coral holobiont reveal host adaptations driven by Holocene climate change and reef specific symbionts.

Autor:	Cooke I; College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia. ira.cooke@jcu.edu.au david.miller@jcu.edu.au.; Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Townsville, Queensland, Australia., Ying H; Research School of Biology, Australian National University, Canberra, ACT, Australia., Forêt S; Research School of Biology, Australian National University, Canberra, ACT, Australia.; ARC Centre of Excellence for Coral Reef Studies, Australian National University, Canberra, ACT, Australia., Bongaerts P; California Academy of Sciences, Golden Gate Park, San Francisco, CA, USA., Strugnell JM; Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Townsville, Queensland, Australia.; Department of Ecology, Environment and Evolution, School of Life Sciences, La Trobe University, Melbourne, Australia.; College of Science and Engineering, James Cook University, Townsville, Queensland, Australia., Simakov O; Department of Molecular Evolution and Development, University of Vienna, Austria., Zhang J; College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia.; Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Townsville, Queensland, Australia.; ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland, Australia., Field MA; Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Townsville, Queensland, Australia.; Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Queensland, Australia., Rodriguez-Lanetty M; Institute of Environment and Department of Biological Sciences, Florida International University, Miami, Fl 33199, USA., Bell SC; Australian Institute of Marine Science, Townsville, Queensland, Australia., Bourne DG; Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Townsville, Queensland, Australia.; College of Science and Engineering, James Cook University, Townsville, Queensland, Australia.; Australian Institute of Marine Science, Townsville, Queensland, Australia., van Oppen MJ; Australian Institute of Marine Science, Townsville, Queensland, Australia.; School of BioSciences, University of Melbourne, Melbourne, Australia., Ragan MA; Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia., Miller DJ; College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia. ira.cooke@jcu.edu.au david.miller@jcu.edu.au.; Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Townsville, Queensland, Australia.; ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland, Australia.
Jazyk:	angličtina
Zdroj:	Science advances [Sci Adv] 2020 Nov 27; Vol. 6 (48). Date of Electronic Publication: 2020 Nov 27 (Print Publication: 2020).
DOI:	10.1126/sciadv.abc6318
Abstrakt:	Genetic signatures caused by demographic and adaptive processes during past climatic shifts can inform predictions of species' responses to anthropogenic climate change. To identify these signatures in Acropora tenuis , a reef-building coral threatened by global warming, we first assembled the genome from long reads and then used shallow whole-genome resequencing of 150 colonies from the central inshore Great Barrier Reef to inform population genomic analyses. We identify population structure in the host that reflects a Pleistocene split, whereas photosymbiont differences between reefs most likely reflect contemporary (Holocene) conditions. Signatures of selection in the host were associated with genes linked to diverse processes including osmotic regulation, skeletal development, and the establishment and maintenance of symbiosis. Our results suggest that adaptation to post-glacial climate change in A. tenuis has involved selection on many genes, while differences in symbiont specificity between reefs appear to be unrelated to host population structure. (Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).)
Databáze:	MEDLINE
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