Glacial vicariance drives phylogeographic diversification in the amphi-boreal kelp Saccharina latissima
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/10400.1/11517 |
Resumo: | Glacial vicariance is regarded as one of the most prevalent drivers of phylogeographic structure and speciation among high-latitude organisms, but direct links between ice advances and range fragmentation have been more difficult to establish in marine than in terrestrial systems. Here we investigate the evolution of largely disjunct (and potentially reproductively isolated) phylogeographic lineages within the amphi-boreal kelp Saccharina latissima s.l. Using molecular data (COI, microsatellites) we confirm that S. latissima comprises also the NE Pacific S. cichorioides complex and is composed of divergent lineages with limited range overlap and genetic admixture. Only a few genetic hybrids were detected throughout a Canadian Arctic/NW Greenland contact zone. The degree of genetic differentiation and sympatric isolation of phylogroups suggest that S. latissima s.l. represents a complex of incipient species. Phylogroup distributions compared with paleo-environmental reconstructions of the cryosphere further suggest that diversification within S. latissima results from chronic glacial isolation in disjunct persistence areas intercalated with ephemeral interglacial poleward expansions and admixture at high-latitude (Arctic) contact zones. This study thus supports a role for glaciations not just in redistributing pre-existing marine lineages but also as a speciation pump across multi-glacial cycles for marine organisms otherwise exhibiting cosmopolite amphi-boreal distributions. |
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Glacial vicariance drives phylogeographic diversification in the amphi-boreal kelp Saccharina latissimaDna Barcode examinationNorth-AtlanticGenetic consequencesLaminaria PhaeophytaMitochondrial-DnaR packageSea-iceSpeciationPacificDivergenceGlacial vicariance is regarded as one of the most prevalent drivers of phylogeographic structure and speciation among high-latitude organisms, but direct links between ice advances and range fragmentation have been more difficult to establish in marine than in terrestrial systems. Here we investigate the evolution of largely disjunct (and potentially reproductively isolated) phylogeographic lineages within the amphi-boreal kelp Saccharina latissima s.l. Using molecular data (COI, microsatellites) we confirm that S. latissima comprises also the NE Pacific S. cichorioides complex and is composed of divergent lineages with limited range overlap and genetic admixture. Only a few genetic hybrids were detected throughout a Canadian Arctic/NW Greenland contact zone. The degree of genetic differentiation and sympatric isolation of phylogroups suggest that S. latissima s.l. represents a complex of incipient species. Phylogroup distributions compared with paleo-environmental reconstructions of the cryosphere further suggest that diversification within S. latissima results from chronic glacial isolation in disjunct persistence areas intercalated with ephemeral interglacial poleward expansions and admixture at high-latitude (Arctic) contact zones. This study thus supports a role for glaciations not just in redistributing pre-existing marine lineages but also as a speciation pump across multi-glacial cycles for marine organisms otherwise exhibiting cosmopolite amphi-boreal distributions.Pew Foundation (USA); Portuguese FCT (Fundacao para a Ciencia e a Tecnologia) through program GENEKELP [PTDC/MAR-EST/6053/2014]; Portuguese FCT (Fundacao para a Ciencia e a Tecnologia) through program MARFOR [Biodiversa/0004/2015]; Portuguese FCT (Fundacao para a Ciencia e a Tecnologia) [UID/Multi/04326/2013, SFRH/BPD/88935/2012, SFRH/BPD/111003/2015]; NSERC; FRQNT; Canada Foundation for Innovation; New Brunswick Innovation Foundation; European Union's Seventh Framework Programme [226248]; Danish Environmental Protection Agency within the Danish Cooperation for Environment in the Arctic (DANCEA)Nature Publishing GroupSapientiaMACHADO, JOÃO NEIVAPaulino, CristinaNielsen, Mette M.Krause-Jensen, DorteSaunders, Gary W.Assis, JorgeBarbara, IgnacioTamigneaux, EricGouveia, LicíniaAires, TâniaMarba, NuriaBruhn, AnnettePearson, GarethSerrao, Ester A.2018-12-07T14:53:26Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/11517eng2045-232210.1038/s41598-018-19620-7info: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:RCAAP2023-07-24T10:23:20Zoai:sapientia.ualg.pt:10400.1/11517Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:03:00.814759Repositório 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 |
Glacial vicariance drives phylogeographic diversification in the amphi-boreal kelp Saccharina latissima |
title |
Glacial vicariance drives phylogeographic diversification in the amphi-boreal kelp Saccharina latissima |
spellingShingle |
Glacial vicariance drives phylogeographic diversification in the amphi-boreal kelp Saccharina latissima MACHADO, JOÃO NEIVA Dna Barcode examination North-Atlantic Genetic consequences Laminaria Phaeophyta Mitochondrial-Dna R package Sea-ice Speciation Pacific Divergence |
title_short |
Glacial vicariance drives phylogeographic diversification in the amphi-boreal kelp Saccharina latissima |
title_full |
Glacial vicariance drives phylogeographic diversification in the amphi-boreal kelp Saccharina latissima |
title_fullStr |
Glacial vicariance drives phylogeographic diversification in the amphi-boreal kelp Saccharina latissima |
title_full_unstemmed |
Glacial vicariance drives phylogeographic diversification in the amphi-boreal kelp Saccharina latissima |
title_sort |
Glacial vicariance drives phylogeographic diversification in the amphi-boreal kelp Saccharina latissima |
author |
MACHADO, JOÃO NEIVA |
author_facet |
MACHADO, JOÃO NEIVA Paulino, Cristina Nielsen, Mette M. Krause-Jensen, Dorte Saunders, Gary W. Assis, Jorge Barbara, Ignacio Tamigneaux, Eric Gouveia, Licínia Aires, Tânia Marba, Nuria Bruhn, Annette Pearson, Gareth Serrao, Ester A. |
author_role |
author |
author2 |
Paulino, Cristina Nielsen, Mette M. Krause-Jensen, Dorte Saunders, Gary W. Assis, Jorge Barbara, Ignacio Tamigneaux, Eric Gouveia, Licínia Aires, Tânia Marba, Nuria Bruhn, Annette Pearson, Gareth Serrao, Ester A. |
author2_role |
author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
MACHADO, JOÃO NEIVA Paulino, Cristina Nielsen, Mette M. Krause-Jensen, Dorte Saunders, Gary W. Assis, Jorge Barbara, Ignacio Tamigneaux, Eric Gouveia, Licínia Aires, Tânia Marba, Nuria Bruhn, Annette Pearson, Gareth Serrao, Ester A. |
dc.subject.por.fl_str_mv |
Dna Barcode examination North-Atlantic Genetic consequences Laminaria Phaeophyta Mitochondrial-Dna R package Sea-ice Speciation Pacific Divergence |
topic |
Dna Barcode examination North-Atlantic Genetic consequences Laminaria Phaeophyta Mitochondrial-Dna R package Sea-ice Speciation Pacific Divergence |
description |
Glacial vicariance is regarded as one of the most prevalent drivers of phylogeographic structure and speciation among high-latitude organisms, but direct links between ice advances and range fragmentation have been more difficult to establish in marine than in terrestrial systems. Here we investigate the evolution of largely disjunct (and potentially reproductively isolated) phylogeographic lineages within the amphi-boreal kelp Saccharina latissima s.l. Using molecular data (COI, microsatellites) we confirm that S. latissima comprises also the NE Pacific S. cichorioides complex and is composed of divergent lineages with limited range overlap and genetic admixture. Only a few genetic hybrids were detected throughout a Canadian Arctic/NW Greenland contact zone. The degree of genetic differentiation and sympatric isolation of phylogroups suggest that S. latissima s.l. represents a complex of incipient species. Phylogroup distributions compared with paleo-environmental reconstructions of the cryosphere further suggest that diversification within S. latissima results from chronic glacial isolation in disjunct persistence areas intercalated with ephemeral interglacial poleward expansions and admixture at high-latitude (Arctic) contact zones. This study thus supports a role for glaciations not just in redistributing pre-existing marine lineages but also as a speciation pump across multi-glacial cycles for marine organisms otherwise exhibiting cosmopolite amphi-boreal distributions. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-07T14:53:26Z 2018 2018-01-01T00:00:00Z |
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/10400.1/11517 |
url |
http://hdl.handle.net/10400.1/11517 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2045-2322 10.1038/s41598-018-19620-7 |
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 |
Nature Publishing Group |
publisher.none.fl_str_mv |
Nature Publishing Group |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133264349233152 |