Section: Ecology
Topic: Ecology, Genetics/Genomics, Physiology
Gene expression plasticity and frontloading promote thermotolerance in Pocillopora corals
;
Adjeroud, Mehdi3, 4, 5 ;
Rey, Olivier1 ;
Romans, Pascal6;
Bonhomme, François7 ;
Pratlong, Marine8, 9;
Haguenauer, Anne10 ;
Pillot, Rémi6;
Feuillassier, Lionel6;
Claereboudt, Michel11 ;
Magalon, Hélène3, 4, 5 ;
Gélin, Pauline3, 4, 5;
Pontarotti, Pierre12, 13 ;
Aurelle, Didier9, 10, 14 ;
Mitta, Guillaume1, 15 ;
Toulza, Eve1
10.24072/pcjournal.79 - Peer Community Journal, Volume 2 (2022), article no. e13.
Get full text PDF Peer reviewed and recommended by PCI
Ecosystems worldwide are suffering from climate change. Coral reef ecosystems are globally threatened by increasing sea surface temperatures. However, gene expression plasticity provides the potential for organisms to respond rapidly and effectively to environmental changes, and would be favored in variable environments. In this study, we investigated the thermal stress response in Pocillopora coral colonies from two contrasting environments by exposing them to heat stress. We compared the physiological state, bacterial and Symbiodiniaceae communities (using 16S and ITS2 metabarcoding), and gene expression levels (using RNA-Seq) between control conditions and heat stress (the temperature just below the first signs of compromised health). Colonies from both thermal regimes remained apparently normal and presented open and colored polyps during heat stress, with no change in bacterial and Symbiodiniaceae community composition. In contrast, they differed in their transcriptomic responses. The colonies from Oman displayed a more plastic transcriptome, but some genes had a higher basal expression level (frontloading) compared to the less thermotolerant colonies from New Caledonia. In 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. Gene regulation (transcription factors, mobile elements, histone modifications and DNA methylation) appeared to be overrepresented in the Oman colonies, indicating possible epigenetic regulation. These results show that transcriptomic plasticity and frontloading can be co-occurring processes in corals confronted with highly variable thermal regimes.
Type: Research article
CC-BY 4.0
@article{10_24072_pcjournal_79,
author = {Brener-Raffalli, Kelly and Vidal-Dupiol, Jeremie and Adjeroud, Mehdi and Rey, Olivier and Romans, Pascal and Bonhomme, Fran\c{c}ois and Pratlong, Marine and Haguenauer, Anne and Pillot, R\'emi and Feuillassier, Lionel and Claereboudt, Michel and Magalon, H\'el\`ene and G\'elin, Pauline and Pontarotti, Pierre and Aurelle, Didier and Mitta, Guillaume and Toulza, Eve},
title = {Gene expression plasticity and frontloading promote thermotolerance in {\protect\emph{Pocillopora}} corals},
journal = {Peer Community Journal},
eid = {e13},
publisher = {Peer Community In},
volume = {2},
year = {2022},
doi = {10.24072/pcjournal.79},
url = {https://peercommunityjournal.org/articles/10.24072/pcjournal.79/}
}
TY - JOUR AU - Brener-Raffalli, Kelly AU - Vidal-Dupiol, Jeremie AU - Adjeroud, Mehdi AU - Rey, Olivier AU - Romans, Pascal AU - Bonhomme, François AU - Pratlong, Marine AU - Haguenauer, Anne AU - Pillot, Rémi AU - Feuillassier, Lionel AU - Claereboudt, Michel AU - Magalon, Hélène AU - Gélin, Pauline AU - Pontarotti, Pierre AU - Aurelle, Didier AU - Mitta, Guillaume AU - Toulza, Eve TI - Gene expression plasticity and frontloading promote thermotolerance in Pocillopora corals JO - Peer Community Journal PY - 2022 VL - 2 PB - Peer Community In UR - https://peercommunityjournal.org/articles/10.24072/pcjournal.79/ DO - 10.24072/pcjournal.79 ID - 10_24072_pcjournal_79 ER -
%0 Journal Article %A Brener-Raffalli, Kelly %A Vidal-Dupiol, Jeremie %A Adjeroud, Mehdi %A Rey, Olivier %A Romans, Pascal %A Bonhomme, François %A Pratlong, Marine %A Haguenauer, Anne %A Pillot, Rémi %A Feuillassier, Lionel %A Claereboudt, Michel %A Magalon, Hélène %A Gélin, Pauline %A Pontarotti, Pierre %A Aurelle, Didier %A Mitta, Guillaume %A Toulza, Eve %T Gene expression plasticity and frontloading promote thermotolerance in Pocillopora corals %J Peer Community Journal %D 2022 %V 2 %I Peer Community In %U https://peercommunityjournal.org/articles/10.24072/pcjournal.79/ %R 10.24072/pcjournal.79 %F 10_24072_pcjournal_79
Brener-Raffalli, Kelly; Vidal-Dupiol, Jeremie; Adjeroud, Mehdi; Rey, Olivier; Romans, Pascal; Bonhomme, François; Pratlong, Marine; Haguenauer, Anne; Pillot, Rémi; Feuillassier, Lionel; Claereboudt, Michel; Magalon, Hélène; Gélin, Pauline; Pontarotti, Pierre; Aurelle, Didier; Mitta, Guillaume; Toulza, Eve. Gene expression plasticity and frontloading promote thermotolerance in Pocillopora corals. Peer Community Journal, Volume 2 (2022), article no. e13. doi : 10.24072/pcjournal.79. https://peercommunityjournal.org/articles/10.24072/pcjournal.79/
Peer reviewed and recommended by PCI : 10.24072/pci.ecology.100028
Conflict of interest of the recommender and peer reviewers:
The recommender in charge of the evaluation of the article and the reviewers declared that they have no conflict of interest (as defined in the code of conduct of PCI) with the authors or with the content of the article.
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