The European sea bass (Dicentrarchus labrax) is a temperate-zone euryhaline teleost of prime importance for aquaculture and fisheries. This species is subdivided into two naturally hybridizing lineages, one inhabiting the north-eastern Atlantic Ocean and the other the Mediterranean and Black seas. Here we provide a high-quality chromosome-scale assembly of its genome that shows a high degree of synteny with the more highly derived teleosts. We find expansions of gene families specifically associated with ion and water regulation, highlighting adaptation to variation in salinity. We further generate a genome-wide variation map through RAD-sequencing of Atlantic and Mediterranean populations. We show that variation in local recombination rates strongly influences the genomic landscape of diversity within and differentiation between lineages. Comparing predictions of alternative demographic models to the joint allele-frequency spectrum indicates that genomic islands of differentiation between sea bass lineages were generated by varying rates of introgression across the genome following a period of geographical isolation.
%0 Journal Article
%1 tine2014european
%A Tine, Mbaye
%A Kuhl, Heiner
%A Gagnaire, Pierre-Alexandre
%A Louro, Bruno
%A Desmarais, Erick
%A Martins, Rute S.T.
%A Hecht, Jochen
%A Knaust, Florian
%A Belkhir, Khalid
%A Klages, Sven
%A Dieterich, Roland
%A Stueber, Kurt
%A Piferrer, Francesc
%A Guinand, Bruno
%A Bierne, Nicolas
%A Volckaert, Filip A. M.
%A Bargelloni, Luca
%A Power, Deborah M.
%A Bonhomme, Francois
%A Canario, Adelino V. M.
%A Reinhardt, Richard
%D 2014
%J Nature Communications
%K along_the_genome demographic_inference
%N 1
%P 5770
%R 10.1038/ncomms6770
%T European sea bass genome and its variation provide insights into adaptation to euryhalinity and speciation
%U https://doi.org/10.1038/ncomms6770
%V 5
%X The European sea bass (Dicentrarchus labrax) is a temperate-zone euryhaline teleost of prime importance for aquaculture and fisheries. This species is subdivided into two naturally hybridizing lineages, one inhabiting the north-eastern Atlantic Ocean and the other the Mediterranean and Black seas. Here we provide a high-quality chromosome-scale assembly of its genome that shows a high degree of synteny with the more highly derived teleosts. We find expansions of gene families specifically associated with ion and water regulation, highlighting adaptation to variation in salinity. We further generate a genome-wide variation map through RAD-sequencing of Atlantic and Mediterranean populations. We show that variation in local recombination rates strongly influences the genomic landscape of diversity within and differentiation between lineages. Comparing predictions of alternative demographic models to the joint allele-frequency spectrum indicates that genomic islands of differentiation between sea bass lineages were generated by varying rates of introgression across the genome following a period of geographical isolation.
@article{tine2014european,
abstract = {The European sea bass (Dicentrarchus labrax) is a temperate-zone euryhaline teleost of prime importance for aquaculture and fisheries. This species is subdivided into two naturally hybridizing lineages, one inhabiting the north-eastern Atlantic Ocean and the other the Mediterranean and Black seas. Here we provide a high-quality chromosome-scale assembly of its genome that shows a high degree of synteny with the more highly derived teleosts. We find expansions of gene families specifically associated with ion and water regulation, highlighting adaptation to variation in salinity. We further generate a genome-wide variation map through RAD-sequencing of Atlantic and Mediterranean populations. We show that variation in local recombination rates strongly influences the genomic landscape of diversity within and differentiation between lineages. Comparing predictions of alternative demographic models to the joint allele-frequency spectrum indicates that genomic islands of differentiation between sea bass lineages were generated by varying rates of introgression across the genome following a period of geographical isolation.},
added-at = {2024-02-21T00:42:03.000+0100},
author = {Tine, Mbaye and Kuhl, Heiner and Gagnaire, Pierre-Alexandre and Louro, Bruno and Desmarais, Erick and Martins, Rute S.T. and Hecht, Jochen and Knaust, Florian and Belkhir, Khalid and Klages, Sven and Dieterich, Roland and Stueber, Kurt and Piferrer, Francesc and Guinand, Bruno and Bierne, Nicolas and Volckaert, Filip A. M. and Bargelloni, Luca and Power, Deborah M. and Bonhomme, Fran{\c{c}}ois and Canario, Adelino V. M. and Reinhardt, Richard},
biburl = {https://www.bibsonomy.org/bibtex/2d45ef2c183524df9706429bf6eef420f/peter.ralph},
day = 23,
doi = {10.1038/ncomms6770},
interhash = {f6a1e4a6790afe1aeae4b40098f664e7},
intrahash = {d45ef2c183524df9706429bf6eef420f},
issn = {2041-1723},
journal = {Nature Communications},
keywords = {along_the_genome demographic_inference},
month = dec,
number = 1,
pages = 5770,
timestamp = {2024-02-21T00:42:03.000+0100},
title = {European sea bass genome and its variation provide insights into adaptation to euryhalinity and speciation},
url = {https://doi.org/10.1038/ncomms6770},
volume = 5,
year = 2014
}