The Relative Roles of Selection and Drift in the Chaffinch Radiation (Aves: Fringilla) Across the Atlantic Archipelagos of Macaronesia

Island populations diverge from the mainland and from each other by both natural selection and neutral forces such as founder effects and genetic drift. In this work, we aim to determine the relative roles of selection and drift in the diversification of chaffinches (Fringilla spp.) in Macaronesia....

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Autores: Condori, Brian, Recuerda, María, Illera, Juan Carlos, Milá, Borja
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/389221
Acceso en línea:http://hdl.handle.net/10261/389221
Access Level:acceso abierto
Palabra clave:Adaptive and neutral divergence
Fringilla
Genome–environment association analysis
Islands
Speciation
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spelling The Relative Roles of Selection and Drift in the Chaffinch Radiation (Aves: Fringilla) Across the Atlantic Archipelagos of MacaronesiaCondori, BrianRecuerda, MaríaIllera, Juan CarlosMilá, BorjaAdaptive and neutral divergenceFringillaGenome–environment association analysisIslandsSpeciationIsland populations diverge from the mainland and from each other by both natural selection and neutral forces such as founder effects and genetic drift. In this work, we aim to determine the relative roles of selection and drift in the diversification of chaffinches (Fringilla spp.) in Macaronesia. We tested the hypothesis that taxa inhabiting Macaronesian archipelagos, which exhibit significant differences in habitat and climate compared with the mainland, should experience distinct ecological pressures, leading to divergence at loci under selection related to environmental variables. To determine the role of local adaptation in the differentiation of these taxa, we performed genotype–environment association (GEA) analyses using ten environmental variables and 52,306 single nucleotide polymorphism markers obtained from genotyping-by-sequencing (GBS) in 79 chaffinches. Redundancy analysis (RDA) revealed that genomic variation is associated with environmental variables and identified candidate genes related to phenotypic traits and environmental variables. Variables associated with habitat type and precipitation, together with drift, played an important role in the genomic differentiation between chaffinches from Macaronesia and the mainland, as well as within the Canarian archipelago. Genetic drift was identified as the main factor in the differentiation of North African chaffinches from Macaronesia and mainland Europe, as well as Madeira chaffinches from those in the Canary Islands. Finally, chaffinches from the Canary Islands show an incipient diversification process at the genetic and phenotypic level driven by both selection and neutral processes. Our results suggest that both habitat-driven local adaptation and drift have played a role in the radiation of chaffinch taxa in Macaronesia.This work was supported by the Spanish Ministry of Science, Innovation and Universities, and the ERDF, grants PGC2018-098897-BI00, PID2021-124501N-BI00, PGC2018-097575-B-I00, and PID2022-140091NB-I00.Peer reviewedJohn Wiley & SonsMinisterio de Ciencia, Innovación y Universidades (España)European CommissionCondori, Brian [0009-0005-6390-3674]Milá, Borja [0000-0002-6446-0079]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/389221reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MCIU/PGC2018-098897-BI00/info:eu-repo/grantAgreement/MCIU/PID2021-124501N-BI00/info:eu-repo/grantAgreement/MCIU/PGC2018-097575-B-I00/info:eu-repo/grantAgreement/MCIU/PID2022-140091NB-I00/https://doi.org/10.1002/ece3.71307Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3892212026-05-22T06:33:51Z
dc.title.none.fl_str_mv The Relative Roles of Selection and Drift in the Chaffinch Radiation (Aves: Fringilla) Across the Atlantic Archipelagos of Macaronesia
title The Relative Roles of Selection and Drift in the Chaffinch Radiation (Aves: Fringilla) Across the Atlantic Archipelagos of Macaronesia
spellingShingle The Relative Roles of Selection and Drift in the Chaffinch Radiation (Aves: Fringilla) Across the Atlantic Archipelagos of Macaronesia
Condori, Brian
Adaptive and neutral divergence
Fringilla
Genome–environment association analysis
Islands
Speciation
title_short The Relative Roles of Selection and Drift in the Chaffinch Radiation (Aves: Fringilla) Across the Atlantic Archipelagos of Macaronesia
title_full The Relative Roles of Selection and Drift in the Chaffinch Radiation (Aves: Fringilla) Across the Atlantic Archipelagos of Macaronesia
title_fullStr The Relative Roles of Selection and Drift in the Chaffinch Radiation (Aves: Fringilla) Across the Atlantic Archipelagos of Macaronesia
title_full_unstemmed The Relative Roles of Selection and Drift in the Chaffinch Radiation (Aves: Fringilla) Across the Atlantic Archipelagos of Macaronesia
title_sort The Relative Roles of Selection and Drift in the Chaffinch Radiation (Aves: Fringilla) Across the Atlantic Archipelagos of Macaronesia
dc.creator.none.fl_str_mv Condori, Brian
Recuerda, María
Illera, Juan Carlos
Milá, Borja
author Condori, Brian
author_facet Condori, Brian
Recuerda, María
Illera, Juan Carlos
Milá, Borja
author_role author
author2 Recuerda, María
Illera, Juan Carlos
Milá, Borja
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
European Commission
Condori, Brian [0009-0005-6390-3674]
Milá, Borja [0000-0002-6446-0079]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Adaptive and neutral divergence
Fringilla
Genome–environment association analysis
Islands
Speciation
topic Adaptive and neutral divergence
Fringilla
Genome–environment association analysis
Islands
Speciation
description Island populations diverge from the mainland and from each other by both natural selection and neutral forces such as founder effects and genetic drift. In this work, we aim to determine the relative roles of selection and drift in the diversification of chaffinches (Fringilla spp.) in Macaronesia. We tested the hypothesis that taxa inhabiting Macaronesian archipelagos, which exhibit significant differences in habitat and climate compared with the mainland, should experience distinct ecological pressures, leading to divergence at loci under selection related to environmental variables. To determine the role of local adaptation in the differentiation of these taxa, we performed genotype–environment association (GEA) analyses using ten environmental variables and 52,306 single nucleotide polymorphism markers obtained from genotyping-by-sequencing (GBS) in 79 chaffinches. Redundancy analysis (RDA) revealed that genomic variation is associated with environmental variables and identified candidate genes related to phenotypic traits and environmental variables. Variables associated with habitat type and precipitation, together with drift, played an important role in the genomic differentiation between chaffinches from Macaronesia and the mainland, as well as within the Canarian archipelago. Genetic drift was identified as the main factor in the differentiation of North African chaffinches from Macaronesia and mainland Europe, as well as Madeira chaffinches from those in the Canary Islands. Finally, chaffinches from the Canary Islands show an incipient diversification process at the genetic and phenotypic level driven by both selection and neutral processes. Our results suggest that both habitat-driven local adaptation and drift have played a role in the radiation of chaffinch taxa in Macaronesia.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/389221
url http://hdl.handle.net/10261/389221
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MCIU/PGC2018-098897-BI00/
info:eu-repo/grantAgreement/MCIU/PID2021-124501N-BI00/
info:eu-repo/grantAgreement/MCIU/PGC2018-097575-B-I00/
info:eu-repo/grantAgreement/MCIU/PID2022-140091NB-I00/
https://doi.org/10.1002/ece3.71307
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
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