Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae)

Autores
Caetano S.; Currat M.; Pennington, R. T.; Prado, Darien Eros; Excoffier L.; Naciri, Y.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study puts together genetic data and an approximate bayesian computation (ABC) approach to infer the time at which the tree Geoffroea spinosa colonized the Galápagos Islands. The genetic diversity and differentiation between Peru and Galápagos population samples, estimated using three chloroplast spacers and six microsatellite loci, reveal significant differences between two mainland regions separated by the Andes mountains (Inter Andean vs. Pacific Coast) as well as a significant genetic differentiation of island populations. Microsatellites identify two distinct geographical clusters, the Galápagos and the mainland, and chloroplast markers show a private haplotype in the Galápagos. The nuclear distinctiveness of the Inter Andean populations suggests current restricted pollen flow, but chloroplast points to cross-Andean dispersals via seeds, indicating that the Andes might not be an effective biogeographical barrier. The ABC analyses clearly point to the colonization of the Galápagos within the last 160 000 years and possibly as recently as 4750 years ago (475 generations). Founder events associated with colonization of the two islands where the species occurs are detected, with Española having been colonized after Floreana. We discuss two nonmutually exclusive possibilities for the colonization of the Galápagos, recent natural dispersal vs. human introduction.
Fil: Caetano S.. No especifíca;
Fil: Currat M.. Universidad de Ginebra; Suiza
Fil: Pennington, R. T.. Royal Botanic Gardens; Reino Unido
Fil: Prado, Darien Eros. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Departamento de Biología. Cátedra de Botánica Morfológica y Sistemática Agronómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; Argentina
Fil: Excoffier L.. University of Bern; Suiza
Fil: Naciri, Y.. No especifíca;
Materia
ABC ANALYSIS
CHLOROPLAST
FOUNDER EVENTS
GENETIC STRUCTURE
LONG-DISTANCE DISPERSAL
MICROSATELLITES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/189165
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae)Caetano S.Currat M.Pennington, R. T.Prado, Darien ErosExcoffier L.Naciri, Y.ABC ANALYSISCHLOROPLASTFOUNDER EVENTSGENETIC STRUCTURELONG-DISTANCE DISPERSALMICROSATELLITEShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1This study puts together genetic data and an approximate bayesian computation (ABC) approach to infer the time at which the tree Geoffroea spinosa colonized the Galápagos Islands. The genetic diversity and differentiation between Peru and Galápagos population samples, estimated using three chloroplast spacers and six microsatellite loci, reveal significant differences between two mainland regions separated by the Andes mountains (Inter Andean vs. Pacific Coast) as well as a significant genetic differentiation of island populations. Microsatellites identify two distinct geographical clusters, the Galápagos and the mainland, and chloroplast markers show a private haplotype in the Galápagos. The nuclear distinctiveness of the Inter Andean populations suggests current restricted pollen flow, but chloroplast points to cross-Andean dispersals via seeds, indicating that the Andes might not be an effective biogeographical barrier. The ABC analyses clearly point to the colonization of the Galápagos within the last 160 000 years and possibly as recently as 4750 years ago (475 generations). Founder events associated with colonization of the two islands where the species occurs are detected, with Española having been colonized after Floreana. We discuss two nonmutually exclusive possibilities for the colonization of the Galápagos, recent natural dispersal vs. human introduction.Fil: Caetano S.. No especifíca;Fil: Currat M.. Universidad de Ginebra; SuizaFil: Pennington, R. T.. Royal Botanic Gardens; Reino UnidoFil: Prado, Darien Eros. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Departamento de Biología. Cátedra de Botánica Morfológica y Sistemática Agronómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; ArgentinaFil: Excoffier L.. University of Bern; SuizaFil: Naciri, Y.. No especifíca;Wiley Blackwell Publishing, Inc2012-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/189165Caetano S.; Currat M.; Pennington, R. T.; Prado, Darien Eros; Excoffier L.; et al.; Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae); Wiley Blackwell Publishing, Inc; Molecular Ecology; 21; 11; 4-2012; 2743-27600962-1083CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1111/j.1365-294X.2012.05562.xinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-294X.2012.05562.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:06:39Zoai:ri.conicet.gov.ar:11336/189165instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:06:39.838CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae)
title Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae)
spellingShingle Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae)
Caetano S.
ABC ANALYSIS
CHLOROPLAST
FOUNDER EVENTS
GENETIC STRUCTURE
LONG-DISTANCE DISPERSAL
MICROSATELLITES
title_short Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae)
title_full Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae)
title_fullStr Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae)
title_full_unstemmed Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae)
title_sort Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae)
dc.creator.none.fl_str_mv Caetano S.
Currat M.
Pennington, R. T.
Prado, Darien Eros
Excoffier L.
Naciri, Y.
author Caetano S.
author_facet Caetano S.
Currat M.
Pennington, R. T.
Prado, Darien Eros
Excoffier L.
Naciri, Y.
author_role author
author2 Currat M.
Pennington, R. T.
Prado, Darien Eros
Excoffier L.
Naciri, Y.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv ABC ANALYSIS
CHLOROPLAST
FOUNDER EVENTS
GENETIC STRUCTURE
LONG-DISTANCE DISPERSAL
MICROSATELLITES
topic ABC ANALYSIS
CHLOROPLAST
FOUNDER EVENTS
GENETIC STRUCTURE
LONG-DISTANCE DISPERSAL
MICROSATELLITES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This study puts together genetic data and an approximate bayesian computation (ABC) approach to infer the time at which the tree Geoffroea spinosa colonized the Galápagos Islands. The genetic diversity and differentiation between Peru and Galápagos population samples, estimated using three chloroplast spacers and six microsatellite loci, reveal significant differences between two mainland regions separated by the Andes mountains (Inter Andean vs. Pacific Coast) as well as a significant genetic differentiation of island populations. Microsatellites identify two distinct geographical clusters, the Galápagos and the mainland, and chloroplast markers show a private haplotype in the Galápagos. The nuclear distinctiveness of the Inter Andean populations suggests current restricted pollen flow, but chloroplast points to cross-Andean dispersals via seeds, indicating that the Andes might not be an effective biogeographical barrier. The ABC analyses clearly point to the colonization of the Galápagos within the last 160 000 years and possibly as recently as 4750 years ago (475 generations). Founder events associated with colonization of the two islands where the species occurs are detected, with Española having been colonized after Floreana. We discuss two nonmutually exclusive possibilities for the colonization of the Galápagos, recent natural dispersal vs. human introduction.
Fil: Caetano S.. No especifíca;
Fil: Currat M.. Universidad de Ginebra; Suiza
Fil: Pennington, R. T.. Royal Botanic Gardens; Reino Unido
Fil: Prado, Darien Eros. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Departamento de Biología. Cátedra de Botánica Morfológica y Sistemática Agronómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; Argentina
Fil: Excoffier L.. University of Bern; Suiza
Fil: Naciri, Y.. No especifíca;
description This study puts together genetic data and an approximate bayesian computation (ABC) approach to infer the time at which the tree Geoffroea spinosa colonized the Galápagos Islands. The genetic diversity and differentiation between Peru and Galápagos population samples, estimated using three chloroplast spacers and six microsatellite loci, reveal significant differences between two mainland regions separated by the Andes mountains (Inter Andean vs. Pacific Coast) as well as a significant genetic differentiation of island populations. Microsatellites identify two distinct geographical clusters, the Galápagos and the mainland, and chloroplast markers show a private haplotype in the Galápagos. The nuclear distinctiveness of the Inter Andean populations suggests current restricted pollen flow, but chloroplast points to cross-Andean dispersals via seeds, indicating that the Andes might not be an effective biogeographical barrier. The ABC analyses clearly point to the colonization of the Galápagos within the last 160 000 years and possibly as recently as 4750 years ago (475 generations). Founder events associated with colonization of the two islands where the species occurs are detected, with Española having been colonized after Floreana. We discuss two nonmutually exclusive possibilities for the colonization of the Galápagos, recent natural dispersal vs. human introduction.
publishDate 2012
dc.date.none.fl_str_mv 2012-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/189165
Caetano S.; Currat M.; Pennington, R. T.; Prado, Darien Eros; Excoffier L.; et al.; Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae); Wiley Blackwell Publishing, Inc; Molecular Ecology; 21; 11; 4-2012; 2743-2760
0962-1083
CONICET Digital
CONICET
url http://hdl.handle.net/11336/189165
identifier_str_mv Caetano S.; Currat M.; Pennington, R. T.; Prado, Darien Eros; Excoffier L.; et al.; Recent colonization of the Galápagos by the tree Geoffroea spinosa Jacq. (Leguminosae); Wiley Blackwell Publishing, Inc; Molecular Ecology; 21; 11; 4-2012; 2743-2760
0962-1083
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1111/j.1365-294X.2012.05562.x
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-294X.2012.05562.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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