FN Archimer Export Format PT J TI Inter-Specific Genetic Exchange Despite Strong Divergence in Deep-Sea Hydrothermal Vent Gastropods of the Genus Alviniconcha BT AF Castel, Jade Hourdez, Stéphane Pradillon, Florence Daguin-Thiébaut, Claire Ballenghien, Marion Ruault, Stéphanie Corre, Erwan Tran Lu Y, Adrien Mary, Jean Gagnaire, Pierre-Alexandre Bonhomme, François Breusing, Corinna Broquet, Thomas Jollivet, Didier AS 1:1;2:2;3:3;4:1;5:1;6:1;7:4;8:5;9:1;10:5;11:5;12:6;13:1;14:1; FF 1:;2:;3:PDG-REM-BEEP-LEP;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:; C1 Dynamique de la Diversité Marine’ (DyDiv) Lab, Station Biologique de Roscoff, Sorbonne Université, CNRS, UMR 7144, Place G. Teissier, 29680 Roscoff, France Laboratoire d’Ecogéochimie des Environnements Benthiques, Observatoire Océanologique de Banyuls, Sorbonne Université, CNRS, UMR 8222, Avenue Pierre Fabre, 66650 Banyuls-sur-Mer, France Unité Biologie et Ecologie des Ecosystèmes Marins Profonds, Université de Brest, Ifremer, CNRS, 29280 Plouzané, France ABiMS Bioinformatics Facility, Station biologique de Roscoff, Sorbonne Université, CNRS, FR2424, Place G. Teissier, 29680 Roscoff, France Team MBE, Department Genφ, ISEM, Université de Montpellier, CNRS, EPHE, IRD, 34110 Montpellier, France Graduate School of Oceanography, University of Rhode Island, 215 South Ferry Rd, Narragansett, RI 02882, USA C2 UNIV SORBONNE, FRANCE UNIV SORBONNE, FRANCE IFREMER, FRANCE UNIV SORBONNE, FRANCE UNIV MONTPELLIER, FRANCE UNIV RHODE ISL, USA SI BREST SE PDG-REM-BEEP-LEP UM BEEP-LM2E IN WOS Ifremer UMR DOAJ copubli-france copubli-univ-france copubli-int-hors-europe IF 3.5 TC 5 UR https://archimer.ifremer.fr/doc/00773/88519/94232.pdf https://archimer.ifremer.fr/doc/00773/88519/94233.zip LA English DT Article CR CHUBACARC BO L'Atalante DE ;speciation;secondary contact;nuclear and mitochondrial genome;transcriptome;DILS AB Deep hydrothermal vents are highly fragmented and unstable habitats at all temporal and spatial scales. Such environmental dynamics likely play a non-negligible role in speciation. Little is, however, known about the evolutionary processes that drive population-level differentiation and vent species isolation and, more specifically, how geography and habitat specialisation interplay in the species history of divergence. In this study, the species range and divergence of Alviniconcha snails that occupy active Western Pacific vent fields was assessed by using sequence variation data of the mitochondrial Cox1 gene, RNAseq, and ddRAD-seq. Combining morphological description and sequence datasets of the three species across five basins, we confirmed that A. kojimai, A. boucheti, and A. strummeri, while partially overlapping over their range, display high levels of divergence in the three genomic compartments analysed that usually encompass values retrieved for reproductively isolated species with divergences rang from 9% to 12.5% (mtDNA) and from 2% to 3.1% (nuDNA). Moreover, the three species can be distinguished on the basis of their external morphology by observing the distribution of bristles and the shape of the columella. According to this sampling, A. boucheti and A. kojimai form an east-to-west species abundance gradient, whereas A. strummeri is restricted to the Futuna Arc/Lau and North Fiji Basins. Surprisingly, population models with both gene flow and population size heterogeneities among genomes indicated that these three species are still able to exchange genes due to secondary contacts at some localities after a long period of isolation. PY 2022 PD JUL SO Genes SN 2073-4425 PU MDPI AG VL 13 IS 6 UT 000816080600001 DI 10.3390/genes13060985 ID 88519 ER EF