Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversification

Autores
León, Fabiola; Pizarro, Eduardo; Noll, Daly; Pertierra, Luis R.; Parker, Patricia; Espinaze, Marcela P. A.; Luna Jorquera, Guillermo; Simeone, Alejandro; Frere, Esteban; Dantas, Gisele; Cristofari, Robin; Cornejo, Omar E.; Bowie, Rauri C. K.; Vianna, Juliana A.
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The relative importance of genetic drift and local adaptation in facilitating speciation remains unclear. This is particularly true for seabirds, which can disperse over large geographic distances, providing opportunities for intermittent gene flow among distant colonies that span the temperature and salinity gradients of the oceans. Here, we delve into the genomic basis of adaptation and speciation of banded penguins, Galápagos (Spheniscus mendiculus), Humboldt (Spheniscus humboldti), Magellanic (Spheniscus magellanicus), and African penguins (Spheniscus demersus), by analyzing 114 genomes from the main 16 breeding colonies. We aim to identify the molecular mechanism and genomic adaptive traits that have facilitated their diversifications. Through positive selection and gene family expansion analyses, we identified candidate genes that may be related to reproductive isolation processes mediated by ecological thermal niche divergence. We recover signals of positive selection on key loci associated with spermatogenesis, especially during the recent peripatric divergence of the Galápagos penguin from the Humboldt penguin. High temperatures in tropical habitats may have favored selection on loci associated with spermatogenesis to maintain sperm viability, leading to reproductive isolation among young species. Our results suggest that genome-wide selection on loci associated with molecular pathways that underpin thermoregulation, osmoregulation, hypoxia, and social behavior appears to have been crucial in local adaptation of banded penguins. Overall, these results contribute to our understanding of how the complexity of biotic, but especially abiotic, factors, along with the high dispersal capabilities of these marine species, may promote both neutral and adaptive lineage divergence even in the presence of gene flow.
Fil: León, Fabiola. Pontificia Universidad Católica de Chile; Chile
Fil: Pizarro, Eduardo. Pontificia Universidad Católica de Chile; Chile
Fil: Noll, Daly. Pontificia Universidad Católica de Chile; Chile
Fil: Pertierra, Luis R.. Museo Nacional de Ciencias Naturales; España
Fil: Parker, Patricia. University of Missouri; Estados Unidos
Fil: Espinaze, Marcela P. A.. Stellenbosch University; Sudáfrica
Fil: Luna Jorquera, Guillermo. Universidad Católica del Norte; Chile
Fil: Simeone, Alejandro. Universidad Andrés Bello; Chile
Fil: Frere, Esteban. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Dantas, Gisele. Pontifícia Universidade Católica de Minas Gerais; Brasil
Fil: Cristofari, Robin. University of Helsinki; Finlandia
Fil: Cornejo, Omar E.. University of California; Estados Unidos
Fil: Bowie, Rauri C. K.. University of California; Estados Unidos
Fil: Vianna, Juliana A.. Pontificia Universidad Católica de Chile; Chile
Materia
PENGUINS
GENOMICS
DIVERSIFICATION
ADAPTATION
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:11336/247732
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/247732
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversificationLeón, FabiolaPizarro, EduardoNoll, DalyPertierra, Luis R.Parker, PatriciaEspinaze, Marcela P. A.Luna Jorquera, GuillermoSimeone, AlejandroFrere, EstebanDantas, GiseleCristofari, RobinCornejo, Omar E.Bowie, Rauri C. K.Vianna, Juliana A.PENGUINSGENOMICSDIVERSIFICATIONADAPTATIONhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The relative importance of genetic drift and local adaptation in facilitating speciation remains unclear. This is particularly true for seabirds, which can disperse over large geographic distances, providing opportunities for intermittent gene flow among distant colonies that span the temperature and salinity gradients of the oceans. Here, we delve into the genomic basis of adaptation and speciation of banded penguins, Galápagos (Spheniscus mendiculus), Humboldt (Spheniscus humboldti), Magellanic (Spheniscus magellanicus), and African penguins (Spheniscus demersus), by analyzing 114 genomes from the main 16 breeding colonies. We aim to identify the molecular mechanism and genomic adaptive traits that have facilitated their diversifications. Through positive selection and gene family expansion analyses, we identified candidate genes that may be related to reproductive isolation processes mediated by ecological thermal niche divergence. We recover signals of positive selection on key loci associated with spermatogenesis, especially during the recent peripatric divergence of the Galápagos penguin from the Humboldt penguin. High temperatures in tropical habitats may have favored selection on loci associated with spermatogenesis to maintain sperm viability, leading to reproductive isolation among young species. Our results suggest that genome-wide selection on loci associated with molecular pathways that underpin thermoregulation, osmoregulation, hypoxia, and social behavior appears to have been crucial in local adaptation of banded penguins. Overall, these results contribute to our understanding of how the complexity of biotic, but especially abiotic, factors, along with the high dispersal capabilities of these marine species, may promote both neutral and adaptive lineage divergence even in the presence of gene flow.Fil: León, Fabiola. Pontificia Universidad Católica de Chile; ChileFil: Pizarro, Eduardo. Pontificia Universidad Católica de Chile; ChileFil: Noll, Daly. Pontificia Universidad Católica de Chile; ChileFil: Pertierra, Luis R.. Museo Nacional de Ciencias Naturales; EspañaFil: Parker, Patricia. University of Missouri; Estados UnidosFil: Espinaze, Marcela P. A.. Stellenbosch University; SudáfricaFil: Luna Jorquera, Guillermo. Universidad Católica del Norte; ChileFil: Simeone, Alejandro. Universidad Andrés Bello; ChileFil: Frere, Esteban. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Dantas, Gisele. Pontifícia Universidade Católica de Minas Gerais; BrasilFil: Cristofari, Robin. University of Helsinki; FinlandiaFil: Cornejo, Omar E.. University of California; Estados UnidosFil: Bowie, Rauri C. K.. University of California; Estados UnidosFil: Vianna, Juliana A.. Pontificia Universidad Católica de Chile; ChileOxford University Press2024-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/247732León, Fabiola; Pizarro, Eduardo; Noll, Daly; Pertierra, Luis R.; Parker, Patricia; et al.; Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversification; Oxford University Press; Molecular Biology and Evolution; 8-2024; 1-190737-4038CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mbe/advance-article/doi/10.1093/molbev/msae166/7734686info:eu-repo/semantics/altIdentifier/doi/10.1093/molbev/msae166info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:45:43Zoai:ri.conicet.gov.ar:11336/247732instacron: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:34982025-10-15 14:45:43.981CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversification
title Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversification
spellingShingle Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversification
León, Fabiola
PENGUINS
GENOMICS
DIVERSIFICATION
ADAPTATION
title_short Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversification
title_full Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversification
title_fullStr Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversification
title_full_unstemmed Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversification
title_sort Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversification
dc.creator.none.fl_str_mv León, Fabiola
Pizarro, Eduardo
Noll, Daly
Pertierra, Luis R.
Parker, Patricia
Espinaze, Marcela P. A.
Luna Jorquera, Guillermo
Simeone, Alejandro
Frere, Esteban
Dantas, Gisele
Cristofari, Robin
Cornejo, Omar E.
Bowie, Rauri C. K.
Vianna, Juliana A.
author León, Fabiola
author_facet León, Fabiola
Pizarro, Eduardo
Noll, Daly
Pertierra, Luis R.
Parker, Patricia
Espinaze, Marcela P. A.
Luna Jorquera, Guillermo
Simeone, Alejandro
Frere, Esteban
Dantas, Gisele
Cristofari, Robin
Cornejo, Omar E.
Bowie, Rauri C. K.
Vianna, Juliana A.
author_role author
author2 Pizarro, Eduardo
Noll, Daly
Pertierra, Luis R.
Parker, Patricia
Espinaze, Marcela P. A.
Luna Jorquera, Guillermo
Simeone, Alejandro
Frere, Esteban
Dantas, Gisele
Cristofari, Robin
Cornejo, Omar E.
Bowie, Rauri C. K.
Vianna, Juliana A.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv PENGUINS
GENOMICS
DIVERSIFICATION
ADAPTATION
topic PENGUINS
GENOMICS
DIVERSIFICATION
ADAPTATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The relative importance of genetic drift and local adaptation in facilitating speciation remains unclear. This is particularly true for seabirds, which can disperse over large geographic distances, providing opportunities for intermittent gene flow among distant colonies that span the temperature and salinity gradients of the oceans. Here, we delve into the genomic basis of adaptation and speciation of banded penguins, Galápagos (Spheniscus mendiculus), Humboldt (Spheniscus humboldti), Magellanic (Spheniscus magellanicus), and African penguins (Spheniscus demersus), by analyzing 114 genomes from the main 16 breeding colonies. We aim to identify the molecular mechanism and genomic adaptive traits that have facilitated their diversifications. Through positive selection and gene family expansion analyses, we identified candidate genes that may be related to reproductive isolation processes mediated by ecological thermal niche divergence. We recover signals of positive selection on key loci associated with spermatogenesis, especially during the recent peripatric divergence of the Galápagos penguin from the Humboldt penguin. High temperatures in tropical habitats may have favored selection on loci associated with spermatogenesis to maintain sperm viability, leading to reproductive isolation among young species. Our results suggest that genome-wide selection on loci associated with molecular pathways that underpin thermoregulation, osmoregulation, hypoxia, and social behavior appears to have been crucial in local adaptation of banded penguins. Overall, these results contribute to our understanding of how the complexity of biotic, but especially abiotic, factors, along with the high dispersal capabilities of these marine species, may promote both neutral and adaptive lineage divergence even in the presence of gene flow.
Fil: León, Fabiola. Pontificia Universidad Católica de Chile; Chile
Fil: Pizarro, Eduardo. Pontificia Universidad Católica de Chile; Chile
Fil: Noll, Daly. Pontificia Universidad Católica de Chile; Chile
Fil: Pertierra, Luis R.. Museo Nacional de Ciencias Naturales; España
Fil: Parker, Patricia. University of Missouri; Estados Unidos
Fil: Espinaze, Marcela P. A.. Stellenbosch University; Sudáfrica
Fil: Luna Jorquera, Guillermo. Universidad Católica del Norte; Chile
Fil: Simeone, Alejandro. Universidad Andrés Bello; Chile
Fil: Frere, Esteban. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Dantas, Gisele. Pontifícia Universidade Católica de Minas Gerais; Brasil
Fil: Cristofari, Robin. University of Helsinki; Finlandia
Fil: Cornejo, Omar E.. University of California; Estados Unidos
Fil: Bowie, Rauri C. K.. University of California; Estados Unidos
Fil: Vianna, Juliana A.. Pontificia Universidad Católica de Chile; Chile
description The relative importance of genetic drift and local adaptation in facilitating speciation remains unclear. This is particularly true for seabirds, which can disperse over large geographic distances, providing opportunities for intermittent gene flow among distant colonies that span the temperature and salinity gradients of the oceans. Here, we delve into the genomic basis of adaptation and speciation of banded penguins, Galápagos (Spheniscus mendiculus), Humboldt (Spheniscus humboldti), Magellanic (Spheniscus magellanicus), and African penguins (Spheniscus demersus), by analyzing 114 genomes from the main 16 breeding colonies. We aim to identify the molecular mechanism and genomic adaptive traits that have facilitated their diversifications. Through positive selection and gene family expansion analyses, we identified candidate genes that may be related to reproductive isolation processes mediated by ecological thermal niche divergence. We recover signals of positive selection on key loci associated with spermatogenesis, especially during the recent peripatric divergence of the Galápagos penguin from the Humboldt penguin. High temperatures in tropical habitats may have favored selection on loci associated with spermatogenesis to maintain sperm viability, leading to reproductive isolation among young species. Our results suggest that genome-wide selection on loci associated with molecular pathways that underpin thermoregulation, osmoregulation, hypoxia, and social behavior appears to have been crucial in local adaptation of banded penguins. Overall, these results contribute to our understanding of how the complexity of biotic, but especially abiotic, factors, along with the high dispersal capabilities of these marine species, may promote both neutral and adaptive lineage divergence even in the presence of gene flow.
publishDate 2024
dc.date.none.fl_str_mv 2024-08
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/11336/247732
León, Fabiola; Pizarro, Eduardo; Noll, Daly; Pertierra, Luis R.; Parker, Patricia; et al.; Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversification; Oxford University Press; Molecular Biology and Evolution; 8-2024; 1-19
0737-4038
CONICET Digital
CONICET
url http://hdl.handle.net/11336/247732
identifier_str_mv León, Fabiola; Pizarro, Eduardo; Noll, Daly; Pertierra, Luis R.; Parker, Patricia; et al.; Comparative genomics supports ecologically induced selection as a putative driver of banded penguin diversification; Oxford University Press; Molecular Biology and Evolution; 8-2024; 1-19
0737-4038
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://academic.oup.com/mbe/advance-article/doi/10.1093/molbev/msae166/7734686
info:eu-repo/semantics/altIdentifier/doi/10.1093/molbev/msae166
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
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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 13.22299

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