Disparate genetic divergence patterns in three corals across a pan-{Pacific} environmental gradient highlight species-specific adaptation

Type : ACL
Nature : Production scientifique
Au bénéfice du Laboratoire : Oui
Statut de publication : Publié
Année de publication : 2023
Auteurs (38) : VOOLSTRAA Christian,r HUME Benjamin,c,c ARMSTRONG E MITUSHASI Guinther PORRO Barbara OURY Nicolas AGOSTINI Sylvain BOISSIN Emilie POULAIN Julie CARRADEC Quentin PAZ-GARCÍA David,a ZOCCOLA Didier MAGALON H MOULIN Clémentine BOURDIN Guillaume IWANKOW Guillaume ROMAC Sarah BANAIGS Bernard BOSS Emmanuel BOWLER Chris DE VARGAS Colomban DOUVILLE Eric FLORES Michel FURLA P GALAND P GILSON Eric LOMBARD Fabien PESANT Stéphane REYNAUD S SULLIVAN M SUNAGAWA Shinichi THOMAS O TROUBLÉ Romain THURBER Rebecca,lisette,vega WINCKER Patrick PLANES S ALLEMAND Denis FORCIOLI Didier
Revue scientifique : npj Biodiversity
Volume : 2
Fascicule : 1
Pages :
DOI : 10.1038/s44185-023-00020-8
URL : https://doi.org/10.1038/s44185-023-00020-8
Abstract : Tropical coral reefs are among the most affected ecosystems by climate change and face increasing loss in the coming decades. Effective conservation strategies that maximize ecosystem resilience must be informed by the accurate characterization of extant genetic diversity and population structure together with an understanding of the adaptive potential of keystone species. Here we analyzed samples from the Tara Pacific Expedition (2016–2018) that completed an 18,000 km longitudinal transect of the Pacific Ocean sampling three widespread corals—Pocillopora meandrina, Porites lobata, and Millepora cf. platyphylla—across 33 sites from 11 islands. Using deep metagenomic sequencing of 269 colonies in conjunction with morphological analyses and climate variability data, we can show that despite a targeted sampling the transect encompasses multiple cryptic species. These species exhibit disparate biogeographic patterns and, most importantly, distinct evolutionary patterns in identical environmental regimes. Our findings demonstrate on a basin scale that evolutionary trajectories are species-specific and can only in part be predicted from the environment. This highlights that conservation strategies must integrate multi-species investigations to discern the distinct genomic footprints shaped by selection as well as the genetic potential for adaptive change.
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Voolstraa CR, Hume BCC, Armstrong E, Mitushasi G, Porro B, Oury N, Agostini S, Boissin E, Poulain J, Carradec Q, Paz-García DA, Zoccola D, Magalon H, Moulin C, Bourdin G, Iwankow G, Romac S, Banaigs B, Boss E, Bowler C, De Vargas C, Douville E, Flores M, Furla P, Galand P, Gilson E, Lombard F, Pesant S, Reynaud S, Sullivan M, Sunagawa S, Thomas O, Troublé R, Thurber RLV, Wincker P, Planes S, Allemand D, Forcioli D (2023) Disparate genetic divergence patterns in three corals across a pan-{Pacific} environmental gradient highlight species-specific adaptation. npj Biodiversity 2 | doi: 10.1038/s44185-023-00020-8