FN Archimer Export Format PT J TI Detailed insights into pan-European population structure and inbreeding in wild and hatchery Pacific oysters (Crassostrea gigas) revealed by genome-wide SNP data BT AF VENDRAMI, David L. J. HOUSTON, Ross D. GHARBI, Karim TELESCA, Luca GUTIERREZ, Alejandro P. GURNEY-SMITH, Helen HASEGAWA, Natsuki BOUDRY, Pierre HOFFMAN, Joseph I. AS 1:1;2:2,3;3:4;4:5,6;5:2,3;6:7;7:8;8:9;9:1,6; FF 1:;2:;3:;4:;5:;6:;7:;8:PDG-RBE-PFOM;9:; C1 Bielefeld Univ, Dept Anim Behav, Bielefeld, Germany. Univ Edinburgh, Roslin Inst, Edinburgh, Midlothian, Scotland. Univ Edinburgh, Royal Dick Sch Vet Studies, Edinburgh, Midlothian, Scotland. Univ Edinburgh, Ashworth Labs, Edinburgh Genom, Edinburgh, Midlothian, Scotland. Univ Cambridge, Dept Earth Sci, Cambridge, England. British Antarctic Survey, Cambridge, England. Vancouver Isl Univ, Dept Fisheries & Aquaculture, Nanaimo, BC, Canada. Japan Fisheries Res Agcy, Natl Res Inst Aquaculture, Minamiise, Japan. UBO, CNRS, IRD, Ifremer,Lab Sci Environm Marin, Plouzane, France. C2 UNIV BIELEFELD, GERMANY UNIV EDINBURGH, UK UNIV EDINBURGH, UK UNIV EDINBURGH, UK UNIV CAMBRIDGE, UK BRITISH ANTARCTIC SURVEY, UK UNIV VANCOUVER ISL, CANADA JAPAN FISHERIES RES AGCY, JAPAN IFREMER, FRANCE SI BREST SE PDG-RBE-PFOM UM LEMAR IN WOS Ifremer UMR DOAJ copubli-europe copubli-int-hors-europe IF 4.013 TC 24 UR https://archimer.ifremer.fr/doc/00484/59561/62557.pdf https://archimer.ifremer.fr/doc/00484/59561/62558.tif https://archimer.ifremer.fr/doc/00484/59561/62559.xlsx https://archimer.ifremer.fr/doc/00484/59561/62560.xlsx https://archimer.ifremer.fr/doc/00484/59561/62561.xlsx LA English DT Article DE ;aquaculture;Crassostrea gigas;genetic structure;high-density genotyping array;inbreeding;Pacific oyster;restriction site-associated DNA (RAD) sequencing;single nucleotide polymorphism (SNP) AB Cultivated bivalves are important not only because of their economic value, but also due to their impacts on natural ecosystems. The Pacific oyster (Crassostrea gigas) is the world's most heavily cultivated shellfish species and has been introduced to all continents except Antarctica for aquaculture. We therefore used a medium-density single nucleotide polymorphism (SNP) array to investigate the genetic structure of this species in Europe, where it was introduced during the 1960s and has since become a prolific invader of coastal ecosystems across the continent. We analyzed 21,499 polymorphic SNPs in 232 individuals from 23 localities spanning a latitudinal cline from Portugal to Norway and including the source populations of Japan and Canada. We confirmed the results of previous studies by finding clear support for a southern and a northern group, with the former being indistinguishable from the source populations indicating the absence of a pronounced founder effect. We furthermore conducted a large-scale comparison of oysters sampled from the wild and from hatcheries to reveal substantial genetic differences including significantly higher levels of inbreeding in some but not all of the sampled hatchery cohorts. These findings were confirmed by a smaller but representative SNP dataset generated using restriction site-associated DNA sequencing. We therefore conclude that genomic approaches can generate increasingly detailed insights into the genetics of wild and hatchery produced Pacific oysters. PY 2019 PD MAR SO Evolutionary Applications SN 1752-4571 PU Wiley VL 12 IS 3 UT 000459328300012 BP 519 EP 534 DI 10.1111/eva.12736 ID 59561 ER EF