Genome-wide analysis clarifies the population genetic structure of wild Gilthead Sea Bream ( Sparus aurata )
Genome-wide analysis clarifies the population genetic structure of wild Gilthead Sea Bream ( Sparus aurata )
Abstract Gilthead sea bream is an important target for both recreational and commercial fishing in Europe, where it is also one of the most important cultured fish. Its distribution range goes from the Mediterranean to the African and European coasts of the North-East Atlantic. So far, the genetic structure of this species in the wild has been studied with microsatellite DNA, but the pattern of differentiation could not be fully clarified. In this study, almost 1000 wild sea bream from 23 locations in the Mediterranean Sea and Atlantic ocean where genotyped at 1159 SNP markers, of which 18 potentially under selection. Neutral markers suggested the presence of a weak subdivision into three genetic clusters: Atlantic, West and East Mediterranean. This last group could be further subdivided into an Ionian/Adriatic and an Aegean group using outlier markers. Seascape analysis suggested that this differentiation was mainly due to difference in salinity, and this was also supported by preliminary genomic functional analysis. These results are of fundamental importance for the development of proper management of this species in the wild and are a first step toward the study of the potential genetic impact of the sea bream aquaculture industry.
De Innocentiis Sabina、Gkagkavouzis Konstantinos、Carr Adrian、Triantafyllidis Alexandros、Hillen Jasmien、Maroso Francesco、Nielsen Einar、do Prado Fernanda、Taggart John Bernard、Karaiskou Nikoleta、Bargelloni Luca、the Aquatrace consortium
ISPRA, Institute for Environmental Protection and ResearchDepartment of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of ThessalonikiFios Genomics LtdDepartment of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of ThessalonikiLaboratory of Biodiversity and Evolutionary Genomics, University of LeuvenDepartment of Comparative Biomedicine and Food Science, University of PaduaSection for Population Ecology and Genetics, National Institute of Aquatic Resources, Technical University of DenmarkDepartment of Biological Sciences, S?o Paulo State UniversityInstitute of Aquaculture, University of StirlingDepartment of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of ThessalonikiDepartment of Comparative Biomedicine and Food Science, University of Padua
遗传学动物学环境生物学
De Innocentiis Sabina,Gkagkavouzis Konstantinos,Carr Adrian,Triantafyllidis Alexandros,Hillen Jasmien,Maroso Francesco,Nielsen Einar,do Prado Fernanda,Taggart John Bernard,Karaiskou Nikoleta,Bargelloni Luca,the Aquatrace consortium.Genome-wide analysis clarifies the population genetic structure of wild Gilthead Sea Bream ( Sparus aurata )[EB/OL].(2025-03-28)[2025-05-11].https://www.biorxiv.org/content/10.1101/2020.07.06.189241.点此复制
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