FN Archimer Export Format
PT J
TI Gene expression plasticity and frontloading promote thermotolerance in Pocillopora corals
BT 
AF Brener-Raffalli, Kelly
   VIDAL DUPIOL, Jeremie
   Adjeroud, Mehdi
   Rey, Olivier
   Romans, Pascal
   Bonhomme, François
   Pratlong, Marine
   Haguenauer, Anne
   Pillot, Remi
   Feuillassier, Lionel
   Claereboudt, Michel
   Magalon, Helene
   Gélin, Pauline
   Pontarotti, Pierre
   Aurelle, Didier
   MITTA, Guillaume
   Toulza, Eve
AS 1:1;2:2;3:3,4;4:1;5:5;6:6;7:7,8;8:9;9:5;10:5;11:10;12:3,4;13:3,4;14:11,12;15:8,9,13;16:1,14;17:1;
FF 1:;2:PDG-RBE-IHPE;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:PDG-RBE-RMPF;17:;
C1 IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan via Domitia, Perpignan , France
   IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan via Domitia, Montpellier, France
   ENTROPIE, IRD, Université de la Réunion, CNRS, IFREMER, Université de la Nouvelle-Calédonie, Perpignan, France
   PSL Université Paris, USR 3278 CRIOBE EPHE-UPVD-CNRS, Perpignan, France
   Observatoire Océanologique de Banyuls, Sorbonne Université-CNRS, FR3724, Avenue Pierre Fabre, 66650 Banyuls-sur-Mer, France
   Institut des Sciences de l’Évolution, Univ. Montpellier, CNRS, IRD, EPHE, Montpellier, France
   Aix Marseille Univ, CNRS, Centrale Marseille, I2M, Marseille, France, Equipe Evolution Biologique et Modélisation, Marseille, France
   Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
   Aix-Marseille Université, Avignon Université, CNRS, IRD, IMBE, Marseille, France
   Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khod, 123, Sultanate of Oman
   Aix Marseille Univ, IRD, APHM, Microbe, Evolution, PHylogénie, Infection, IHU Méditerranée Infection, Marseille France. Evolutionary Biology team, France
   CNRS, SNC5039, france
   Institut de Systématique, Evolution, Biodiversité (ISYEB),Muséum National d’Histoire Naturelle, CNRS, Sorbonne Université, EPHE, 57 rue Cuvier, 75005 Paris, France
   Univ Polynesie Francaise, ILM, IRD, Ifremer, F-98719 Tahiti, French Polynesia, France
C2 UNIV MONTPELLIER, FRANCE
   UNIV MONTPELLIER, FRANCE
   IRD, FRANCE
   UNIV PERPIGNAN, FRANCE
   UNIV SORBONNE, FRANCE
   UNIV MONTPELLIER, FRANCE
   UNIV AIX MARSEILLE, FRANCE
   UNIV AIX MARSEILLE, FRANCE
   UNIV AIX MARSEILLE, FRANCE
   UNIV SULTAN QABOOS, OMAN
   UNIV AIX MARSEILLE, FRANCE
   CNRS, FRANCE
   MNHN, FRANCE
   UNIV POLYNESIE FRANCAISE, FRANCE
SI MONTPELLIER
   TAHITI
SE PDG-RBE-IHPE
   PDG-RBE-RMPF
UM IHPE
   EIO
   ENTROPIE
TC 0
UR https://archimer.ifremer.fr/doc/00751/86270/91589.pdf
LA English
DT Article
AB 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. 
PY 2022
PD FEB
SO Peer Community Journal. Section: Ecology
SN 2804-3871
PU Centre Mersenne
VL 2
DI 10.24072/pcjournal.79
ID 86270
ER

EF