Stepping up to genome scan allows stock differentiation in the worldwide distributed blue shark Prionace glauca

Autor: Natacha Nikolic, Floriaan Devloo‐Delva, Diane Bailleul, Ekaterina Noskova, Clément Rougeux, Chrystelle Delord, Philippe Borsa, Cathy Liautard‐Haag, Mohamad Hassan, Amandine D. Marie, Pierre Feutry, Peter Grewe, Campbell Davies, Jessica Farley, Daniel Fernando, Sebastian Biton‐Porsmoguer, François Poisson, Denham Parker, Agostino Leone, Jorden Aulich, Matt Lansdell, Francis Marsac, Sophie Arnaud‐Haond
Přispěvatelé: Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP), Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Agence de Recherche pour la Biodiversité à La Réunion (ARBRE), CSIRO Environment, University of Tasmania [Hobart, Australia] (UTAS), ITMO University [Russia], Laboratoire d'Excellence CORAIL (LabEX CORAIL), Institut de Recherche pour le Développement (IRD)-Université des Antilles et de la Guyane (UAG)-École des hautes études en sciences sociales (EHESS)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de La Réunion (UR)-Université de la Polynésie Française (UPF)-Université de la Nouvelle-Calédonie (UNC)-Institut d'écologie et environnement-Université des Antilles (UA), Ecologie marine tropicale dans les Océans Pacifique et Indien (ENTROPIE [Réunion]), Institut de Recherche pour le Développement (IRD)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), University of Calgary, Institut de Recherche pour le Développement (IRD [Nouvelle-Calédonie]), Tishreen University, CSIRO Agriculture and Food (CSIRO), CSIRO Marine and Atmosphere Research [Hobart], Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), Linnaeus University, Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Office français de la biodiversité (OFB), Department of Forestry, Fisheries and the Environment, Department of Biological Sciences, University of Cape Town, Cape Town, South Africa, This work is part of the PSTBS-IO project supported by funding from CSIRO Oceans and Atmosphere, AZTI Tecnalia, Institut de recherche pour le développement (IRD) and Research Institute for Tuna Fisheries (RITF), and financial assistance of the European Union (GCP/INT/233/EC – Population structure of IOTC species in the Indian Ocean), and POPSIZE project supported by FEAMP (2014– 2020 UE No. 508/2014), Nikolic, Natacha, Devloo-Delva, Floriaan, Bailleul, Diane, Noskova, Ekaterina, Rougeux, Clément, Delord, Chrystelle, Borsa, Philippe, Liautard-Haag, Cathy, Hassan, Mohamad, Marie, Amandine D, Feutry, Pierre, Grewe, Peter, Davies, Campbell, Farley, Jessica, Fernando, Daniel, Biton-Porsmoguer, Sebastian, Poisson, Françoi, Parker, Denham, Leone, Agostino, Aulich, Jorden, Lansdell, Matt, Marsac, Franci, Arnaud-Haond, Sophie
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Molecular Ecology (0962-1083) (Wiley), 2023-03, Vol. 32, N. 5, P. 1000-1019
Molecular Ecology
Molecular Ecology, 2023, 32 (5), pp.1000-1019. ⟨10.1111/mec.16822⟩
ISSN: 0962-1083
1365-294X
DOI: 10.1111/mec.16822⟩
Popis: The blue shark Prionace glauca is a top predator with one of the widest geographic distributions of any shark species, yet classified as critically endangered in the Mediterranean Sea, and Near Threatened globally. Previous genetic studies did not reject the null hypothesis of a single global population across the worldwide species range. Blue shark situation was proposed as a possible archetype of the ‘grey zone of population differentiation’, coined to designate cases where population structure may be too recent or too faint to be detected using a limited set of markers. Here, blue shark samples collected throughout its global range were sequenced using a specific ddRAD method (DArTseq; Georges et al. 2018), which recovered 37,655 genome-wide single nucleotide polymorphisms (SNPs). Two main groups emerged, with Mediterranean Sea and Northern Atlantic samples significantly differentiated from the Indo-west Pacific samples. Significant pairwise FST values indicated further genetic differentiation within the Atlantic Ocean, and between the Atlantic Ocean and the Mediterranean Sea. Reconstruction of recent demographic history suggested the divergence between northern and southern oceanic populations emerged about 500 generations ago and revealed a drastic reduction in effective population size from a large ancestral population. Our results illustrate the power of high-density genome scans to detect population structure and reconstruct demographic history in highly migratory marine species. As the management of the blue shark fishery, either as target or as bycatch, does not account for this delineation, we strongly recommend that the results presented here be considered in future stock assessment and management plans.
Databáze: OpenAIRE
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