Lack of genetic structure in euryhaline Chelon labrosus from the estuaries under anthropic pressure in the Southern Bay of Biscay to the coastal waters of the Mediterranean Sea

Over the last decade, xenoestrogenic effects have been reported in populations of thicklip grey mullet Chelon labrosus from contaminated estuaries in the Bay of Biscay, resulting in intersex condition. To understand the level of gene flow in individuals of different Basque estuaries microsatellite m...

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Autores: Nzioka, Anthony, Madeira García, María José, Kokokiris, Lambros, Ortiz Zarragoitia, Maren, Diaz de Cerio Arruabarrena, Oihane, Cancio Uriarte, Ibon
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/63425
Acceso en línea:http://hdl.handle.net/10810/63425
Access Level:acceso abierto
Palabra clave:Chelon labrosus
DNA microsatellites
estuaries
fish
genetics
migration
panmixia
population genetics
population structure
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spelling Lack of genetic structure in euryhaline Chelon labrosus from the estuaries under anthropic pressure in the Southern Bay of Biscay to the coastal waters of the Mediterranean SeaNzioka, AnthonyMadeira García, María JoséKokokiris, LambrosOrtiz Zarragoitia, MarenDiaz de Cerio Arruabarrena, OihaneCancio Uriarte, IbonChelon labrosusDNA microsatellitesestuariesfishgeneticsmigrationpanmixiapopulation geneticspopulation structureOver the last decade, xenoestrogenic effects have been reported in populations of thicklip grey mullet Chelon labrosus from contaminated estuaries in the Bay of Biscay, resulting in intersex condition. To understand the level of gene flow in individuals of different Basque estuaries microsatellite markers were used to evaluate the population structure and connectivity of C. labrosus from estuaries of the Basque coast. 46 microsatellites were tested and 10 validated for the analysis of 204 individuals collected from 5 selected Basque estuaries and 2 outgroups in the Bay of Cadiz and Thermaic Gulf. The polymorphic microsatellites revealed 74 total alleles, 2–19 alleles per locus. The mean observed heterozygosity (0.49 ± 0.02) was lower than the expected one (0.53 ± 0.01). There was no evidence of genetic differentiation (FST = 0.0098, P = 0.0000) among individuals or sites. Bayesian clustering analysis revealed a single population in all sampled locations. The results of this study indicate widespread genetic homogeneity and panmixia of C. labrosus across the current sampling areas spanning the Atlantic and Mediterranean basins. The hypothesis of panmixia could therefore be well supported so individuals inhabiting estuaries with high prevalence of intersex condition should be considered as members of the same single genetic group as those inhabiting adjacent estuaries without incidence of xenoestrogenicity.This work was funded by the Spanish Ministry of Science. Innovation and Universities and EU-FEDER/ERDF (BORN2bEGG PGC2018-101442-B-I00) and the Basque Government (Grants to consolidated research groups IT1302-19 and IT1743-22). A.N. is a recipient of a pre-doctoral grant PIF17/172 from the University of the Basque Country (UPV/EHU). Authors wish to thank the help of two anonymous reviewers for significantly helping in better focusing the aim of the present work.Elsevier202320232023info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/63425reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MICIU/PGC2018-101442-B-I00/https://www.sciencedirect.com/science/article/pii/S0141113623001861info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/© 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by- nc-nd/4.0/).Atribución-NoComercial-SinDerivadas 3.0 Españaoai:addi.ehu.eus:10810/634252026-06-18T09:23:17Z
dc.title.none.fl_str_mv Lack of genetic structure in euryhaline Chelon labrosus from the estuaries under anthropic pressure in the Southern Bay of Biscay to the coastal waters of the Mediterranean Sea
title Lack of genetic structure in euryhaline Chelon labrosus from the estuaries under anthropic pressure in the Southern Bay of Biscay to the coastal waters of the Mediterranean Sea
spellingShingle Lack of genetic structure in euryhaline Chelon labrosus from the estuaries under anthropic pressure in the Southern Bay of Biscay to the coastal waters of the Mediterranean Sea
Nzioka, Anthony
Chelon labrosus
DNA microsatellites
estuaries
fish
genetics
migration
panmixia
population genetics
population structure
title_short Lack of genetic structure in euryhaline Chelon labrosus from the estuaries under anthropic pressure in the Southern Bay of Biscay to the coastal waters of the Mediterranean Sea
title_full Lack of genetic structure in euryhaline Chelon labrosus from the estuaries under anthropic pressure in the Southern Bay of Biscay to the coastal waters of the Mediterranean Sea
title_fullStr Lack of genetic structure in euryhaline Chelon labrosus from the estuaries under anthropic pressure in the Southern Bay of Biscay to the coastal waters of the Mediterranean Sea
title_full_unstemmed Lack of genetic structure in euryhaline Chelon labrosus from the estuaries under anthropic pressure in the Southern Bay of Biscay to the coastal waters of the Mediterranean Sea
title_sort Lack of genetic structure in euryhaline Chelon labrosus from the estuaries under anthropic pressure in the Southern Bay of Biscay to the coastal waters of the Mediterranean Sea
dc.creator.none.fl_str_mv Nzioka, Anthony
Madeira García, María José
Kokokiris, Lambros
Ortiz Zarragoitia, Maren
Diaz de Cerio Arruabarrena, Oihane
Cancio Uriarte, Ibon
author Nzioka, Anthony
author_facet Nzioka, Anthony
Madeira García, María José
Kokokiris, Lambros
Ortiz Zarragoitia, Maren
Diaz de Cerio Arruabarrena, Oihane
Cancio Uriarte, Ibon
author_role author
author2 Madeira García, María José
Kokokiris, Lambros
Ortiz Zarragoitia, Maren
Diaz de Cerio Arruabarrena, Oihane
Cancio Uriarte, Ibon
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Chelon labrosus
DNA microsatellites
estuaries
fish
genetics
migration
panmixia
population genetics
population structure
topic Chelon labrosus
DNA microsatellites
estuaries
fish
genetics
migration
panmixia
population genetics
population structure
description Over the last decade, xenoestrogenic effects have been reported in populations of thicklip grey mullet Chelon labrosus from contaminated estuaries in the Bay of Biscay, resulting in intersex condition. To understand the level of gene flow in individuals of different Basque estuaries microsatellite markers were used to evaluate the population structure and connectivity of C. labrosus from estuaries of the Basque coast. 46 microsatellites were tested and 10 validated for the analysis of 204 individuals collected from 5 selected Basque estuaries and 2 outgroups in the Bay of Cadiz and Thermaic Gulf. The polymorphic microsatellites revealed 74 total alleles, 2–19 alleles per locus. The mean observed heterozygosity (0.49 ± 0.02) was lower than the expected one (0.53 ± 0.01). There was no evidence of genetic differentiation (FST = 0.0098, P = 0.0000) among individuals or sites. Bayesian clustering analysis revealed a single population in all sampled locations. The results of this study indicate widespread genetic homogeneity and panmixia of C. labrosus across the current sampling areas spanning the Atlantic and Mediterranean basins. The hypothesis of panmixia could therefore be well supported so individuals inhabiting estuaries with high prevalence of intersex condition should be considered as members of the same single genetic group as those inhabiting adjacent estuaries without incidence of xenoestrogenicity.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/63425
url http://hdl.handle.net/10810/63425
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MICIU/PGC2018-101442-B-I00/
https://www.sciencedirect.com/science/article/pii/S0141113623001861
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Atribución-NoComercial-SinDerivadas 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Atribución-NoComercial-SinDerivadas 3.0 España
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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