@article{fdi:010089969,
  title = {{G}ene expression plasticity and frontloading promote thermotolerance in {P}ocillopora corals},
  author = {{B}rener-{R}affalli, {K}. and {V}idal-{D}upiol, {J}. and {A}djeroud, {M}ehdi and {R}ey, {O}. and {R}omans, {P}. and {B}onhomme, {F}. and {P}ratlong, {M}. and {H}aguenauer, {A}. and {P}illot, {R}. and {F}euillassier, {L}. and {C}laereboudt, {M}. and {M}agalon, {H}. and {G}{\'e}lin, {P}. and {P}ontarotti, {P}. and {A}urelle, {D}. and {M}itta, {G}. and {T}oulza, {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{E}cosystems worldwide are suffering from climate change. {C}oral reef ecosystems are globally threatened by increasing sea surface temperatures. {H}owever, gene expression plasticity provides the potential for organisms to respond rapidly and effectively to environmental changes, and would be favored in variable environments. {I}n this study, we investigated the thermal stress response in {P}ocillopora coral colonies from two contrasting environments by exposing them to heat stress. {W}e compared the physiological state, bacterial and {S}ymbiodiniaceae communities (using 16{S} and {ITS}2 metabarcoding), and gene expression levels (using {RNA}-{S}eq) between control conditions and heat stress (the temperature just below the first signs of compromised health). {C}olonies from both thermal regimes remained apparently normal and presented open and colored polyps during heat stress, with no change in bacterial and {S}ymbiodiniaceae community composition. {I}n contrast, they differed in their transcriptomic responses. {T}he colonies from {O}man displayed a more plastic transcriptome, but some genes had a higher basal expression level (frontloading) compared to the less thermotolerant colonies from {N}ew {C}aledonia. {I}n terms of biological functions, we observed an increase in the expression of stress response genes (including induction of tumor necrosis factor receptors, heat shock proteins, and detoxification of reactive oxygen species), together with a decrease in the expression of genes involved in morpho-anatomical functions. {G}ene regulation (transcription factors, mobile elements, histone modifications and {DNA} methylation) appeared to be overrepresented in the {O}man colonies, indicating possible epigenetic regulation. {T}hese results show that transcriptomic plasticity and frontloading can be co-occurring processes in corals confronted with highly variable thermal regimes.},
  keywords = {{OMAN} ; {NOUVELLE} {CALEDONIE} ; {PACIFIQUE} ; {OMAN} {GOLF}},
  booktitle = {},
  journal = {{P}eer {C}ommunity {J}ournal},
  volume = {2},
  numero = {},
  pages = {e13 [26 ]},
  ISSN = {2804-3871},
  year = {2022},
  DOI = {10.24072/pcjournal.79},
  URL = {https://www.documentation.ird.fr/hor/fdi:010089969},
}