seanoe:98771 ALLAL Francois UMR Marbec, Université Montpellier, CNRS, Ifremer, IRD, INRAE, Montpellier, France 2024-10-03 ISO 19115:2003/19139 1.0 The fate of a polygenic phenotype within the genomic landscapes of introgression in the European seabass hybrid zone 2020 2024-10-03 Leitwein Maeva, Durif Ghislain, Delpuech Emilie, Gagnaire Pierre-Alexandre, Ernande Bruno, Vandeputte Marc, Vergnet Alain, Duranton Maud, Clota Frederic, Allal Francois (2020). The fate of a polygenic phenotype within the genomic landscapes of introgression in the European seabass hybrid zone. SEANOE. https://doi.org/10.17882/98771 Unraveling the evolutionary mechanisms and consequences of hybridization is a major concern in biology. Many studies have documented the interplay between recombination and selection in modulating the genomic landscape of introgression, but few have considered how associations with phenotype may affect this landscape. Here, we use the European seabass (Dicentrarchus labrax), a key species in marine aquaculture that undergoes natural hybridization, to determine how selection on phenotype modulates the introgression landscape between Atlantic and Mediterranean lineages. We use a high-density SNP array to assess individual local ancestry along the genome and improve the mapping of muscle fat content, a polygenic trait that is divergent between lineages. Taking into account variation in recombination rates, we reveal a purging of Atlantic ancestry in the admixed Mediterranean populations. While Atlantic individuals had higher muscle fat content, we observed that genomic regions associated with this trait also displayed reduced introgression of Atlantic ancestry. These results emphasize how selection against maladapted alleles shape the genomic landscape of introgression. L.M. was supported by a grant from Ifremer’s Scientific Board. This project was carried out with the support of the Ifremer MARBEC Experimental Aquaculture Research Station staff and facilities. This study received funding from European Union’s Horizon 2020 work program under the grant No. 652831 agreement (AQUAEXCEL2020), and from the French Ministry of the Sea (Direction générale des affaires maritimes, de la pêche et de l'aquaculture) under grant CRECHE2020. LEITWEIN Maeva UMR Marbec, Université Montpellier, CNRS, Ifremer, IRD, INRAE, Montpellier, France DURIF Ghislain IMAG - Institut Montpelliérain Alexander Grothendieck, Montpellier, France DELPUECH Emilie UMR Marbec, Université Montpellier, CNRS, Ifremer, IRD, INRAE, Montpellier, France GAGNAIRE Pierre-Alexandre ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France ERNANDE Bruno UMR Marbec, Université Montpellier, CNRS, Ifremer, IRD, INRAE, Montpellier, France VANDEPUTTE Marc UMR Marbec, Université Montpellier, CNRS, Ifremer, IRD, INRAE, Montpellier, France VERGNET Alain UMR Marbec, Université Montpellier, CNRS, Ifremer, IRD, INRAE, Montpellier, France DURANTON Maud UMR Marbec, Université Montpellier, CNRS, Ifremer, IRD, INRAE, Montpellier, France CLOTA Frederic UMR Marbec, Université Montpellier, CNRS, Ifremer, IRD, INRAE, Montpellier, France ALLAL Francois UMR Marbec, Université Montpellier, CNRS, Ifremer, IRD, INRAE, Montpellier, France SEANOE https://www.seanoe.org/data/00876/98771/illustration.gif Genetic card obtained for the offspring of the study from SNP genetyped with the DLabCHIP Axiom array Hybridization Introgression phenotype European seabass selection recombination Environment FP7 AQUA EXCEL (Agreement: 262336) Bioinformatics ODATIS aggregation parameters and Essential Variable names 2024-09-16 geonetwork.thesaurus.external.theme.NVS.OD1 Environment SeaDataNet Parameter Disciplines 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.P08 Analysis data Type de jeux de donnée ODATIS 2024-10-15 geonetwork.thesaurus.local.theme.type_jeux_donnee CC-BY-NC (Creative Commons - Attribution, No commercial usage) The Fate of a Polygenic Phenotype Within the Genomic Landscapes of Introgression in the European Seabass Hybrid Zone 2024 Oxford University Press (OUP) Leitwein Maeva Durif Ghislain Delpuech Emilie Gagnaire Pierre-Alexandre Ernande Bruno Vandeputte Marc Vergnet Alain Duranton Maud Clota Frederic Allal Francois 10.1093/molbev/msae194 oceans -22.34547 36.71703 29.208993 52.682543 VCF https://www.seanoe.org/data/00876/98771/data/108415.vcf WWW:DOWNLOAD-1.0-link--download Raw data Genotyping data in VCF format for Offspring and parents - 353 MB https://doi.org/10.17882/98771 WWW:LINK-1.0-http--metadata-URL DOI of the product https://www.seanoe.org/data/00876/98771/ rel-canonical Seanoe Genotyping data obtained by DLabCHIP Axiom SNP array (Griot et al, 2020, https://doi.org/10.1016/j.aquaculture.2020.735930)