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Mediterranean versus Red Sea corals facing climate change, a transcriptome analysis
Maor-Landaw, K.; Waldman Ben-Asher, H.; Karako-Lampert, S.; Salmon-Divon, M.; Prada, F.; Caroselli, E.; Goffredo, S.; Falini, G.; Dubinsky, Z.; Levy, O. (2017). Mediterranean versus Red Sea corals facing climate change, a transcriptome analysis. NPG Scientific Reports 7(42405): 8 pp. http://hdl.handle.net/10.1038/srep42405
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Maor-Landaw, K.
  • Waldman Ben-Asher, H.
  • Karako-Lampert, S.
  • Salmon-Divon, M.
  • Prada, F.
  • Caroselli, E.
  • Goffredo, S.
  • Falini, G.
  • Dubinsky, Z.
  • Levy, O.

Abstract
    The anthropogenic increase in atmospheric CO2 that drives global warming and ocean acidification raises serious concerns regarding the future of corals, the main carbonate biomineralizers. Here we used transcriptome analysis to study the effect of long-term gradual temperature increase (annual rate), combined with lowered pH values, on a sub-tropical Red Sea coral, Stylophora pistillata, and on a temperate Mediterranean symbiotic coral Balanophyllia europaea. The gene expression profiles revealed a strong effect of both temperature increase and pH decrease implying for synergism response. The temperate coral, exposed to a twice as high range of seasonal temperature fluctuations than the Red Sea species, faced stress more effectively. The compensatory strategy for coping apparently involves deviating cellular resources into a massive up-regulation of genes in general, and specifically of genes involved in the generation of metabolic energy. Our results imply that sub-lethal, prolonged exposure to stress can stimulate evolutionary increase in stress resilience.

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