Publications des scientifiques de l'IRD

Kang J. L., Nagelkerken I., Rummer J. L., Rodolfo-Metalpa Riccardo, Munday P. L., Ravasi T., Schunter C. (2022). Rapid evolution fuels transcriptional plasticity to ocean acidification. Global Change Biology, [Early access], p. [16 p.]. ISSN 1354-1013.

Titre du document
Rapid evolution fuels transcriptional plasticity to ocean acidification
Année de publication
2022
Type de document
Article référencé dans le Web of Science WOS:000763308900001
Auteurs
Kang J. L., Nagelkerken I., Rummer J. L., Rodolfo-Metalpa Riccardo, Munday P. L., Ravasi T., Schunter C.
Source
Global Change Biology, 2022, [Early access], p. [16 p.] ISSN 1354-1013
Ocean acidification (OA) is postulated to affect the physiology, behavior, and life-history of marine species, but potential for acclimation or adaptation to elevated pCO(2) in wild populations remains largely untested. We measured brain transcriptomes of six coral reef fish species at a natural volcanic CO2 seep and an adjacent control reef in Papua New Guinea. We show that elevated pCO(2) induced common molecular responses related to circadian rhythm and immune system but different magnitudes of molecular response across the six species. Notably, elevated transcriptional plasticity was associated with core circadian genes affecting the regulation of intracellular pH and neural activity in Acanthochromis polyacanthus. Gene expression patterns were reversible in this species as evidenced upon reduction of CO2 following a natural storm-event. Compared with other species, Ac. polyacanthus has a more rapid evolutionary rate and more positively selected genes in key functions under the influence of elevated CO2, thus fueling increased transcriptional plasticity. Our study reveals the basis to variable gene expression changes across species, with some species possessing evolved molecular toolkits to cope with future OA.
Plan de classement
Sciences du milieu [021] ; Limnologie biologique / Océanographie biologique [034]
Description Géographique
PACIFIQUE ; PAPOUASIE NOUVELLE GUINEE ; MILNE BAIE PROVINCE ; UPA UPASINA
Localisation
Fonds IRD [F B010084398]
Identifiant IRD
fdi:010084398
Contact