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    Molecular processes of transgenerational acclimation to a warming ocean

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    Description:
    Accepted Manuscript
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    Type
    Article
    Authors
    Veilleux, Heather D.
    Ryu, Tae Woo
    Donelson, Jennifer M.
    van Herwerden, Lynne
    Seridi, Loqmane cc
    Ghosheh, Yanal cc
    Berumen, Michael L. cc
    Leggat, William
    Ravasi, Timothy cc
    Munday, Philip L. cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Computer Science Program
    Marine Science Program
    Red Sea Research Center (RSRC)
    Bioscience Program
    KAUST Environmental Epigenetics Research Program (KEEP)
    Applied Mathematics and Computational Science Program
    Date
    2015-07-20
    Online Publication Date
    2015-07-20
    Print Publication Date
    2015-12
    Permanent link to this record
    http://hdl.handle.net/10754/575089
    
    Metadata
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    Abstract
    Some animals have the remarkable capacity to acclimate across generations to projected future climate change1, 2, 3, 4; however, the underlying molecular processes are unknown. We sequenced and assembled de novo transcriptomes of adult tropical reef fish exposed developmentally or transgenerationally to projected future ocean temperatures and correlated the resulting expression profiles with acclimated metabolic traits from the same fish. We identified 69 contigs representing 53 key genes involved in thermal acclimation of aerobic capacity. Metabolic genes were among the most upregulated transgenerationally, suggesting shifts in energy production for maintaining performance at elevated temperatures. Furthermore, immune- and stress-responsive genes were upregulated transgenerationally, indicating a new complement of genes allowing the second generation of fish to better cope with elevated temperatures. Other differentially expressed genes were involved with tissue development and transcriptional regulation. Overall, we found a similar suite of differentially expressed genes among developmental and transgenerational treatments. Heat-shock protein genes were surprisingly unresponsive, indicating that short-term heat-stress responses may not be a good indicator of long-term acclimation capacity. Our results are the first to reveal the molecular processes that may enable marine fishes to adjust to a future warmer environment over multiple generations.
    Citation
    Molecular processes of transgenerational acclimation to a warming ocean 2015 Nature Climate Change
    Publisher
    Springer Nature
    Journal
    Nature Climate change
    DOI
    10.1038/nclimate2724
    Additional Links
    http://www.nature.com/doifinder/10.1038/nclimate2724
    ae974a485f413a2113503eed53cd6c53
    10.1038/nclimate2724
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Red Sea Research Center (RSRC); Bioscience Program; Marine Science Program; Applied Mathematics and Computational Science Program; Computer Science Program; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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