Congruence between fine-scale genetic breaks and dispersal potential in an estuarine seaweed across multiple transition zones
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/16642 |
Resumo: | Genetic structure in biogeographical transition zones can be shaped by several factors including limited dispersal across barriers, admixture following secondary contact, differential selection, and mating incompatibility. A striking example is found in Northwest France and Northwest Spain, where the estuarine seaweed Fucus ceranoides L. exhibits sharp, regional genetic clustering. This pattern has been related to historical population fragmentation and divergence into distinct glacial refugia, followed by post-glacial expansion and secondary contact. The contemporary persistence of sharp ancient genetic breaks between nearby estuaries has been attributed to prior colonization effects (density barriers) but the effect of oceanographic barriers has not been tested. Here, through a combination of mesoscale sampling (15 consecutive populations) and population genetic data (mtIGS) in NW France, we define regional genetic disjunctions similar to those described in NW Iberia. Most importantly, using high resolution dispersal simulations for Brittany and Iberian populations, we provide evidence for a central role of contemporary hydrodynamics in maintaining genetic breaks across these two major biogeographic transition zones. Our findings further show the importance of a comprehensive understanding of oceanographic regimes in hydrodynamically complex coastal regions to explain the maintenance of sharp genetic breaks along continuously populated coastlines. |
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Congruence between fine-scale genetic breaks and dispersal potential in an estuarine seaweed across multiple transition zonesBiogeographyFucus sppGene flowPhysical modellingGenetic structure in biogeographical transition zones can be shaped by several factors including limited dispersal across barriers, admixture following secondary contact, differential selection, and mating incompatibility. A striking example is found in Northwest France and Northwest Spain, where the estuarine seaweed Fucus ceranoides L. exhibits sharp, regional genetic clustering. This pattern has been related to historical population fragmentation and divergence into distinct glacial refugia, followed by post-glacial expansion and secondary contact. The contemporary persistence of sharp ancient genetic breaks between nearby estuaries has been attributed to prior colonization effects (density barriers) but the effect of oceanographic barriers has not been tested. Here, through a combination of mesoscale sampling (15 consecutive populations) and population genetic data (mtIGS) in NW France, we define regional genetic disjunctions similar to those described in NW Iberia. Most importantly, using high resolution dispersal simulations for Brittany and Iberian populations, we provide evidence for a central role of contemporary hydrodynamics in maintaining genetic breaks across these two major biogeographic transition zones. Our findings further show the importance of a comprehensive understanding of oceanographic regimes in hydrodynamically complex coastal regions to explain the maintenance of sharp genetic breaks along continuously populated coastlines.Foundation for Science and Technology (FCT-MEC, Portugal) [DL57/2016/CP1361/CT0035]National Research Foundation of South AfricaNational Research Foundation - South Africa [64801]FCTPortuguese Foundation for Science and TechnologyEuropean Commission [SFRH/BPD/88935/2012, SFRH/BPD/111003/2015]Pew Marine Fellowship (USA) [SFRH/BPD/111003/2015][BIODIVERSA/004/2015][IF/01413/2014/CP1217/CT0004][UID/Multi/04326/2019]International Council for the Exploration of the Sea (ICES)SapientiaNicastro, KatyAssis, J.Serrao, EsterPearson, GarethNeiva, J.Valero, MyriamJacinto, RitaZardi, Gerardo, I2021-06-24T11:36:09Z2020-012020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/16642eng1054-313910.1093/icesjms/fsz179info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:28:36Zoai:sapientia.ualg.pt:10400.1/16642Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:06:44.750363Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Congruence between fine-scale genetic breaks and dispersal potential in an estuarine seaweed across multiple transition zones |
title |
Congruence between fine-scale genetic breaks and dispersal potential in an estuarine seaweed across multiple transition zones |
spellingShingle |
Congruence between fine-scale genetic breaks and dispersal potential in an estuarine seaweed across multiple transition zones Nicastro, Katy Biogeography Fucus spp Gene flow Physical modelling |
title_short |
Congruence between fine-scale genetic breaks and dispersal potential in an estuarine seaweed across multiple transition zones |
title_full |
Congruence between fine-scale genetic breaks and dispersal potential in an estuarine seaweed across multiple transition zones |
title_fullStr |
Congruence between fine-scale genetic breaks and dispersal potential in an estuarine seaweed across multiple transition zones |
title_full_unstemmed |
Congruence between fine-scale genetic breaks and dispersal potential in an estuarine seaweed across multiple transition zones |
title_sort |
Congruence between fine-scale genetic breaks and dispersal potential in an estuarine seaweed across multiple transition zones |
author |
Nicastro, Katy |
author_facet |
Nicastro, Katy Assis, J. Serrao, Ester Pearson, Gareth Neiva, J. Valero, Myriam Jacinto, Rita Zardi, Gerardo, I |
author_role |
author |
author2 |
Assis, J. Serrao, Ester Pearson, Gareth Neiva, J. Valero, Myriam Jacinto, Rita Zardi, Gerardo, I |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Nicastro, Katy Assis, J. Serrao, Ester Pearson, Gareth Neiva, J. Valero, Myriam Jacinto, Rita Zardi, Gerardo, I |
dc.subject.por.fl_str_mv |
Biogeography Fucus spp Gene flow Physical modelling |
topic |
Biogeography Fucus spp Gene flow Physical modelling |
description |
Genetic structure in biogeographical transition zones can be shaped by several factors including limited dispersal across barriers, admixture following secondary contact, differential selection, and mating incompatibility. A striking example is found in Northwest France and Northwest Spain, where the estuarine seaweed Fucus ceranoides L. exhibits sharp, regional genetic clustering. This pattern has been related to historical population fragmentation and divergence into distinct glacial refugia, followed by post-glacial expansion and secondary contact. The contemporary persistence of sharp ancient genetic breaks between nearby estuaries has been attributed to prior colonization effects (density barriers) but the effect of oceanographic barriers has not been tested. Here, through a combination of mesoscale sampling (15 consecutive populations) and population genetic data (mtIGS) in NW France, we define regional genetic disjunctions similar to those described in NW Iberia. Most importantly, using high resolution dispersal simulations for Brittany and Iberian populations, we provide evidence for a central role of contemporary hydrodynamics in maintaining genetic breaks across these two major biogeographic transition zones. Our findings further show the importance of a comprehensive understanding of oceanographic regimes in hydrodynamically complex coastal regions to explain the maintenance of sharp genetic breaks along continuously populated coastlines. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01 2020-01-01T00:00:00Z 2021-06-24T11:36:09Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/16642 |
url |
http://hdl.handle.net/10400.1/16642 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1054-3139 10.1093/icesjms/fsz179 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
International Council for the Exploration of the Sea (ICES) |
publisher.none.fl_str_mv |
International Council for the Exploration of the Sea (ICES) |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133310160470016 |