TY - JOUR T1 - Out of the Mediterranean? Post‐glacial colonization pathways varied among cold‐water coral species A1 - Boavida,Joana A1 - Becheler,Ronan A1 - Choquet,Marvin A1 - Frank,Norbert A1 - Taviani,Marco A1 - Bourillet,Jean-Francois A1 - Meistertzheim,Anne‐leila A1 - Grehan,Anthony A1 - Savini,Alessandra A1 - Arnaud-Haond,Sophie AD - MARBEC, Institut Français de Recherche pour L'Exploitation de la MerUniv MontpellierCNRSIRD Sète ,France AD - Aix Marseille UniversitéCNRS/INSUUniversité de ToulonIRDMediterranean Institute of Oceanography (MIO) UM 110 Marseille ,France AD - Centro de Ciências do MarUniversidade do Algarve Faro, Portugal AD - Institut Français de Recherche pour L'Exploitation de la MerCentre de BretagneREM/EEPLaboratoire Environnement Profond Bretagne ,France AD - CNRSUMI 3614 Evolutionary Biology and Ecology of AlgaeSorbonne UniversitéUPMC Univ Paris 6 Roscoff ,France AD - Station Biologique de Roscoff ,Roscoff Cedex ,France AD - Faculty of Biosciences and AquacultureNord University Bodø ,Norway AD - Institute of Environmental PhysicsHeidelberg University Heidelberg ,Germany AD - Institute of Marine Sciences ‐ National Research Council (ISMAR‐CNR) Bologna, Italy AD - Biology DepartmentWoods Hole Oceanographic Institution Woods Hole Massachusetts, usa AD - Stazione Zoologica Anton Dohrn Villa Comunale Naples, Italy AD - Institut Français de Recherche pour L'Exploitation de la MerPhysical Resources and Sea Floor Ecosystems Department Brest ,France AD - CNRSSorbonne UniversitésLaboratoire d'Ecogéochimie des Environnements Benthiques (LECOB) Banyuls‐sur‐Mer ,France AD - CNRSSorbonne UniversitésLaboratoire d'Océanographie Microbienne (LOMIC) Banyuls‐sur‐Mer ,France AD - Department of Earth & Ocean SciencesNUI Galway Galway ,Ireland AD - Department of Earth and Environmental SciencesUniversità degli Studi di Milano‐Bicocca Milano ,Italy UR - https://doi.org/10.1111/jbi.13570 DO - 10.1111/jbi.13570 KW - cold-water corals KW - deep-sea KW - glacial marine refugia KW - Last Glacial Maximum KW - Lophelia pertusa KW - Madrepora oculata KW - marine phylogeography N2 - Aim To infer cold‐water corals’ (CWC) post‐glacial phylogeography and assess the role of Mediterranean Sea glacial refugia as origins for the recolonization of the northeastern Atlantic Ocean. Location Northeastern Atlantic Ocean and Mediterranean Sea. Taxon Lophelia pertusa, Madrepora oculata. Methods We sampled CWC using remotely operated vehicles and one sediment core for coral and sediment dating. We characterized spatial genetic patterns (microsatellites and a nuclear gene fragment) using networks, clustering and measures of genetic differentiation. Results Inferences from microsatellite and sequence data were congruent, and showed a contrast between the two CWC species. Populations of L. pertusa present a dominant pioneer haplotype, local haplotype radiations and a majority of endemic variation in lower latitudes. Madrepora oculata populations are differentiated across the northeastern Atlantic and genetic lineages are poorly admixed even among neighbouring sites. Conclusions Our study shows contrasting post‐glacial colonization pathways for two key habitat‐forming species in the deep sea. The CWC L. pertusa has likely undertaken a long‐range (post‐glacial) recolonization of the northeastern Atlantic directly from refugia located along southern Europe (Mediterranean Sea or Gulf of Cadiz). In contrast, the stronger genetic differentiation of M. oculata populations mirrors the effects of long‐term isolation in multiple refugia. We suggest that the distinct and genetically divergent, refugial populations initiated the post‐glacial recolonization of the northeastern Atlantic margins, leading to a secondary contact in the northern range and reaching higher latitudes much later, in the late Holocene. This study highlights the need to disentangle the influences of present‐day dispersal and evolutionary processes on the distribution of genetic polymorphisms, to unravel the influence of past and future environmental changes on the connectivity of cosmopolitan deep‐sea ecosystems associated with CWC. Y1 - 2019/05 PB - Wiley JF - Journal Of Biogeography SN - 0305-0270 VL - 46 IS - 5 SP - 915 EP - 931 ID - 59864 ER -