Genetic homogeneity, lack of larvae recruitment, and clonality in absence of females across western Mediterranean populations of the starfish Coscinasterias tenuispina.

We here analysed the populations' genetic structure of Coscinasterias tenuispina, an AtlanticMediterranean fssiparous starfsh, focusing on the western Mediterranean, to investigate: the distribution and prevalence of genetic variants, the relative importance of asexual reproduction, connectivit...

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Detalles Bibliográficos
Autores: Pérez Portela, Rocío, Garcia-Cisneros, Alex, Campos-Canet, Marta, Palacín Cabañas, Cruz
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/186063
Acceso en línea:https://hdl.handle.net/2445/186063
Access Level:acceso abierto
Palabra clave:Mediterrània occidental
Estrelles de mar
Reproducció asexual
Genètica de poblacions
Western Mediterranean
Starfishes
Asexual reproduction
Population Genetics
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spelling Genetic homogeneity, lack of larvae recruitment, and clonality in absence of females across western Mediterranean populations of the starfish Coscinasterias tenuispina.Pérez Portela, RocíoGarcia-Cisneros, AlexCampos-Canet, MartaPalacín Cabañas, CruzMediterrània occidentalEstrelles de marReproducció asexualGenètica de poblacionsWestern MediterraneanStarfishesAsexual reproductionPopulation GeneticsWe here analysed the populations' genetic structure of Coscinasterias tenuispina, an AtlanticMediterranean fssiparous starfsh, focusing on the western Mediterranean, to investigate: the distribution and prevalence of genetic variants, the relative importance of asexual reproduction, connectivity across the Atlantic-Mediterranean transition, and the potential recent colonisation of the Mediterranean Sea. Individuals from 11 Atlantic-Mediterranean populations of a previous study added to 172 new samples from fve new W Mediterranean sites. Individuals were genotyped at 12 microsatellite loci and their gonads histologically analysed for sex determination. Additionally, four populations were genotyped at two-time points. Results demonstrated genetic homogeneity and low clonal richness within the W Mediterranean, due to the dominance of a superclone, but large genetic divergence with adjacent areas. The lack of new genotypes recruitment over time, and the absence of females, confrmed that W Mediterranean populations were exclusively maintained by fssion and reinforced the idea of its recent colonization. The existence of diferent environmental conditions among basins and/or density-depend processes could explain this lack of recruitment from distant areas. The positive correlation between clonal richness and heterozygote excess suggests that most genetic diversity is retained within individuals in the form of heterozygosity in clonal populations, which might increase their resilience.Nature Publishing Group2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/186063Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1038/s41598-021-96331-6Scientific Reports, 2021, vol. 11, p. 16819https://doi.org/10.1038/s41598-021-96331-6cc-by (c) Pérez Portela, Rocío et al., 2021https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1860632026-05-27T06:46:51Z
dc.title.none.fl_str_mv Genetic homogeneity, lack of larvae recruitment, and clonality in absence of females across western Mediterranean populations of the starfish Coscinasterias tenuispina.
title Genetic homogeneity, lack of larvae recruitment, and clonality in absence of females across western Mediterranean populations of the starfish Coscinasterias tenuispina.
spellingShingle Genetic homogeneity, lack of larvae recruitment, and clonality in absence of females across western Mediterranean populations of the starfish Coscinasterias tenuispina.
Pérez Portela, Rocío
Mediterrània occidental
Estrelles de mar
Reproducció asexual
Genètica de poblacions
Western Mediterranean
Starfishes
Asexual reproduction
Population Genetics
title_short Genetic homogeneity, lack of larvae recruitment, and clonality in absence of females across western Mediterranean populations of the starfish Coscinasterias tenuispina.
title_full Genetic homogeneity, lack of larvae recruitment, and clonality in absence of females across western Mediterranean populations of the starfish Coscinasterias tenuispina.
title_fullStr Genetic homogeneity, lack of larvae recruitment, and clonality in absence of females across western Mediterranean populations of the starfish Coscinasterias tenuispina.
title_full_unstemmed Genetic homogeneity, lack of larvae recruitment, and clonality in absence of females across western Mediterranean populations of the starfish Coscinasterias tenuispina.
title_sort Genetic homogeneity, lack of larvae recruitment, and clonality in absence of females across western Mediterranean populations of the starfish Coscinasterias tenuispina.
dc.creator.none.fl_str_mv Pérez Portela, Rocío
Garcia-Cisneros, Alex
Campos-Canet, Marta
Palacín Cabañas, Cruz
author Pérez Portela, Rocío
author_facet Pérez Portela, Rocío
Garcia-Cisneros, Alex
Campos-Canet, Marta
Palacín Cabañas, Cruz
author_role author
author2 Garcia-Cisneros, Alex
Campos-Canet, Marta
Palacín Cabañas, Cruz
author2_role author
author
author
dc.subject.none.fl_str_mv Mediterrània occidental
Estrelles de mar
Reproducció asexual
Genètica de poblacions
Western Mediterranean
Starfishes
Asexual reproduction
Population Genetics
topic Mediterrània occidental
Estrelles de mar
Reproducció asexual
Genètica de poblacions
Western Mediterranean
Starfishes
Asexual reproduction
Population Genetics
description We here analysed the populations' genetic structure of Coscinasterias tenuispina, an AtlanticMediterranean fssiparous starfsh, focusing on the western Mediterranean, to investigate: the distribution and prevalence of genetic variants, the relative importance of asexual reproduction, connectivity across the Atlantic-Mediterranean transition, and the potential recent colonisation of the Mediterranean Sea. Individuals from 11 Atlantic-Mediterranean populations of a previous study added to 172 new samples from fve new W Mediterranean sites. Individuals were genotyped at 12 microsatellite loci and their gonads histologically analysed for sex determination. Additionally, four populations were genotyped at two-time points. Results demonstrated genetic homogeneity and low clonal richness within the W Mediterranean, due to the dominance of a superclone, but large genetic divergence with adjacent areas. The lack of new genotypes recruitment over time, and the absence of females, confrmed that W Mediterranean populations were exclusively maintained by fssion and reinforced the idea of its recent colonization. The existence of diferent environmental conditions among basins and/or density-depend processes could explain this lack of recruitment from distant areas. The positive correlation between clonal richness and heterozygote excess suggests that most genetic diversity is retained within individuals in the form of heterozygosity in clonal populations, which might increase their resilience.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/186063
url https://hdl.handle.net/2445/186063
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1038/s41598-021-96331-6
Scientific Reports, 2021, vol. 11, p. 16819
https://doi.org/10.1038/s41598-021-96331-6
dc.rights.none.fl_str_mv cc-by (c) Pérez Portela, Rocío et al., 2021
https://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Pérez Portela, Rocío et al., 2021
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
dc.source.none.fl_str_mv Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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