Population-specific variations of the genetic architecture of sex determination in wild European sea bass Dicentrarchus labrax L.
Among the different sex determination modalities exhibited by fish species, polygenic sex determination (PSD) may show variations in terms of genetic and environmental components between populations exposed/adapted to different environments. European sea bass (Dicentrarchus labrax) is an interesting...
Published in: | Heredity |
---|---|
Main Authors: | , , , , |
Other Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
SpringerNature
2018
|
Subjects: | |
Online Access: | http://hdl.handle.net/11577/3276744 https://doi.org/10.1038/s41437-018-0157-z https://www.nature.com/articles/s41437-018-0157-z |
id |
ftunivpadovairis:oai:www.research.unipd.it:11577/3276744 |
---|---|
record_format |
openpolar |
spelling |
ftunivpadovairis:oai:www.research.unipd.it:11577/3276744 2024-04-14T08:15:59+00:00 Population-specific variations of the genetic architecture of sex determination in wild European sea bass Dicentrarchus labrax L. FAGGION, SARA Vandeputte Marc Chatain Beatrice Gagnaire Pierre-Alexandre Allal François Faggion, Sara Vandeputte, Marc Chatain, Beatrice Gagnaire, Pierre-Alexandre Allal, François 2018 STAMPA http://hdl.handle.net/11577/3276744 https://doi.org/10.1038/s41437-018-0157-z https://www.nature.com/articles/s41437-018-0157-z eng eng SpringerNature info:eu-repo/semantics/altIdentifier/wos/WOS:000464018400009 numberofpages:10 journal:HEREDITY http://hdl.handle.net/11577/3276744 doi:10.1038/s41437-018-0157-z info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85055584540 https://www.nature.com/articles/s41437-018-0157-z European sea bass polygenic sex determination wGWAS info:eu-repo/semantics/article 2018 ftunivpadovairis https://doi.org/10.1038/s41437-018-0157-z 2024-03-21T19:32:00Z Among the different sex determination modalities exhibited by fish species, polygenic sex determination (PSD) may show variations in terms of genetic and environmental components between populations exposed/adapted to different environments. European sea bass (Dicentrarchus labrax) is an interesting model, combining both a PSD system and a genetic subdivision into an Atlantic and a Mediterranean lineage, with genetic substructures within the Mediterranean Sea. We produced experimental progeny crosses (N = 927) from broodstock sampled in four wild populations (North Atlantic, NAT; Western Mediterranean, WEM; North-Eastern Mediterranean, NEM; South-Eastern Mediterranean, SEM). There were less females than males in the progeny, both in the global dataset (32.5%) and within each paternal group (from 25.1% for NEM to 39.0% for WEM), with significant variation among populations, dams and sires. Sex, body weight (BW) and body length (BL) showed moderate heritability (0.52 ± 0.17, 0.46 ± 0.17, 0.34 ± 0.15, respectively). Sex was genetically correlated with BW and BL (rA sex/BW = 0.69 ± 0.12, rA sex/BL = 0.66 ± 0.13). The wGWAS performed both on the global dataset and within each paternal group revealed a different genetic architecture of sex determination between Atlantic and Mediterranean populations (9 QTLs found in NAT, 7 in WEM, 5 in NEM and 4 in SEM, with a cumulated variance explained of 27.04%, 21.87%, 15.89% and 12.10%, respectively) with a more similar genetic architecture among geographically close populations compared to geographically distant populations, consistent with the hypothesis of a population-specific evolution of polygenic sex determination systems in different environments. Article in Journal/Newspaper North Atlantic Padua Research Archive (IRIS - Università degli Studi di Padova) Heredity 122 5 612 621 |
institution |
Open Polar |
collection |
Padua Research Archive (IRIS - Università degli Studi di Padova) |
op_collection_id |
ftunivpadovairis |
language |
English |
topic |
European sea bass polygenic sex determination wGWAS |
spellingShingle |
European sea bass polygenic sex determination wGWAS FAGGION, SARA Vandeputte Marc Chatain Beatrice Gagnaire Pierre-Alexandre Allal François Population-specific variations of the genetic architecture of sex determination in wild European sea bass Dicentrarchus labrax L. |
topic_facet |
European sea bass polygenic sex determination wGWAS |
description |
Among the different sex determination modalities exhibited by fish species, polygenic sex determination (PSD) may show variations in terms of genetic and environmental components between populations exposed/adapted to different environments. European sea bass (Dicentrarchus labrax) is an interesting model, combining both a PSD system and a genetic subdivision into an Atlantic and a Mediterranean lineage, with genetic substructures within the Mediterranean Sea. We produced experimental progeny crosses (N = 927) from broodstock sampled in four wild populations (North Atlantic, NAT; Western Mediterranean, WEM; North-Eastern Mediterranean, NEM; South-Eastern Mediterranean, SEM). There were less females than males in the progeny, both in the global dataset (32.5%) and within each paternal group (from 25.1% for NEM to 39.0% for WEM), with significant variation among populations, dams and sires. Sex, body weight (BW) and body length (BL) showed moderate heritability (0.52 ± 0.17, 0.46 ± 0.17, 0.34 ± 0.15, respectively). Sex was genetically correlated with BW and BL (rA sex/BW = 0.69 ± 0.12, rA sex/BL = 0.66 ± 0.13). The wGWAS performed both on the global dataset and within each paternal group revealed a different genetic architecture of sex determination between Atlantic and Mediterranean populations (9 QTLs found in NAT, 7 in WEM, 5 in NEM and 4 in SEM, with a cumulated variance explained of 27.04%, 21.87%, 15.89% and 12.10%, respectively) with a more similar genetic architecture among geographically close populations compared to geographically distant populations, consistent with the hypothesis of a population-specific evolution of polygenic sex determination systems in different environments. |
author2 |
Faggion, Sara Vandeputte, Marc Chatain, Beatrice Gagnaire, Pierre-Alexandre Allal, François |
format |
Article in Journal/Newspaper |
author |
FAGGION, SARA Vandeputte Marc Chatain Beatrice Gagnaire Pierre-Alexandre Allal François |
author_facet |
FAGGION, SARA Vandeputte Marc Chatain Beatrice Gagnaire Pierre-Alexandre Allal François |
author_sort |
FAGGION, SARA |
title |
Population-specific variations of the genetic architecture of sex determination in wild European sea bass Dicentrarchus labrax L. |
title_short |
Population-specific variations of the genetic architecture of sex determination in wild European sea bass Dicentrarchus labrax L. |
title_full |
Population-specific variations of the genetic architecture of sex determination in wild European sea bass Dicentrarchus labrax L. |
title_fullStr |
Population-specific variations of the genetic architecture of sex determination in wild European sea bass Dicentrarchus labrax L. |
title_full_unstemmed |
Population-specific variations of the genetic architecture of sex determination in wild European sea bass Dicentrarchus labrax L. |
title_sort |
population-specific variations of the genetic architecture of sex determination in wild european sea bass dicentrarchus labrax l. |
publisher |
SpringerNature |
publishDate |
2018 |
url |
http://hdl.handle.net/11577/3276744 https://doi.org/10.1038/s41437-018-0157-z https://www.nature.com/articles/s41437-018-0157-z |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000464018400009 numberofpages:10 journal:HEREDITY http://hdl.handle.net/11577/3276744 doi:10.1038/s41437-018-0157-z info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85055584540 https://www.nature.com/articles/s41437-018-0157-z |
op_doi |
https://doi.org/10.1038/s41437-018-0157-z |
container_title |
Heredity |
container_volume |
122 |
container_issue |
5 |
container_start_page |
612 |
op_container_end_page |
621 |
_version_ |
1796314513121738752 |