FN Archimer Export Format PT J TI Out of the Mediterranean? Post‐glacial colonization pathways varied among cold‐water coral species BT AF Boavida, Joana Becheler, Ronan Choquet, Marvin Frank, Norbert Taviani, Marco Bourillet, Jean-Francois Meistertzheim, Anne‐Leila Grehan, Anthony Savini, Alessandra ARNAUD-HAOND, Sophie AS 1:1,2,3;2:4,5,6;3:4,7;4:8;5:9,10,11;6:12;7:13,14;8:15;9:16;10:1,15; FF 1:PDG-RBE-MARBEC-LHM;2:PDG-REM-EEP-LEP;3:;4:;5:;6:PDG-REM;7:;8:;9:;10:PDG-RBE-MARBEC-LHM; C1 MARBEC, Institut Français de Recherche pour L'Exploitation de la MerUniv MontpellierCNRSIRD Sète ,France Aix Marseille UniversitéCNRS/INSUUniversité de ToulonIRDMediterranean Institute of Oceanography (MIO) UM 110 Marseille ,France Centro de Ciências do MarUniversidade do Algarve Faro, Portugal Institut Français de Recherche pour L'Exploitation de la MerCentre de BretagneREM/EEPLaboratoire Environnement Profond Bretagne ,France CNRSUMI 3614 Evolutionary Biology and Ecology of AlgaeSorbonne UniversitéUPMC Univ Paris 6 Roscoff ,France Station Biologique de Roscoff ,Roscoff Cedex ,France Faculty of Biosciences and AquacultureNord University Bodø ,Norway Institute of Environmental PhysicsHeidelberg University Heidelberg ,Germany Institute of Marine Sciences ‐ National Research Council (ISMAR‐CNR) Bologna, Italy Biology DepartmentWoods Hole Oceanographic Institution Woods Hole Massachusetts, usa Stazione Zoologica Anton Dohrn Villa Comunale Naples, Italy Institut Français de Recherche pour L'Exploitation de la MerPhysical Resources and Sea Floor Ecosystems Department Brest ,France CNRSSorbonne UniversitésLaboratoire d'Ecogéochimie des Environnements Benthiques (LECOB) Banyuls‐sur‐Mer ,France CNRSSorbonne UniversitésLaboratoire d'Océanographie Microbienne (LOMIC) Banyuls‐sur‐Mer ,France Department of Earth & Ocean SciencesNUI Galway Galway ,Ireland Department of Earth and Environmental SciencesUniversità degli Studi di Milano‐Bicocca Milano ,Italy C2 IFREMER, FRANCE UNIV AIX MARSEILLE, FRANCE UNIV ALGARVE, PORTUGAL IFREMER, FRANCE CNRS, FRANCE UNIV PARIS 06, FRANCE UNIV BODO, NORWAY UNIV HEIDELBERG, GERMANY CNR ISMAR, ITALY WHOI, USA STAZ ZOOL ANTON DOHRN, ITALY IFREMER, FRANCE CNRS, FRANCE CNRS, FRANCE UNIV NATL IRELAND, IRELAND UNIV MILANO BICOCCA, ITALY SI SETE BREST SE PDG-RBE-MARBEC-LHM PDG-REM-EEP-LEP PDG-REM UM MARBEC IN WOS Ifremer UPR WOS Ifremer UMR copubli-france copubli-europe copubli-univ-france copubli-int-hors-europe IF 3.723 TC 15 UR https://archimer.ifremer.fr/doc/00487/59864/63140.pdf LA English DT Article CR BOBECO LEG1 BOBECO LEG2 ICECTD BO Pourquoi pas ? Thalassa DE ;cold-water corals;deep-sea;glacial marine refugia;Last Glacial Maximum;Lophelia pertusa;Madrepora oculata;marine phylogeography AB 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. PY 2019 PD MAY SO Journal Of Biogeography SN 0305-0270 PU Wiley VL 46 IS 5 UT 000471344900007 BP 915 EP 931 DI 10.1111/jbi.13570 ID 59864 ER EF