Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes

Autores
Near, Thomas; Dornburg, Alex; Kuhn, K.; Eastman,Joseph T.; Pennington, Jillian N.; Patarnello, Tomaso; Zane, Lorenzo; Fernandez, Daniel Alfredo; Jones, Christopher D.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Southern Ocean around Antarctica is among the most rapidly warming regions on Earth, but has experienced episodic climate change during the past 40 million years. It remains unclear how ancient periods of climate change have shaped Antarctic bio-diversity. The origin of antifreeze glycoproteins (AFGPs) in Antarctic notothenioid fishes has become a classic example of how the evolution of a key innovation in response to climate change can drive adaptive radiation. By using a time-calibrated molecular phylogeny of notothenioids and reconstructed paleoclimate, we demonstrate that the origin of AFGP occurred between 42 and 22 Ma, which includes a period of global cooling approximately 35 Ma. However, the most species-rich lineages diversified and evolved significant ecological differences at least 10 million years after the origin of AFGPs, during a second cooling event in the Late Miocene (11.6-5.3 Ma). This pattern indicates that AFGP was not the sole trigger of the notothenioid adaptive radiation. Instead, the bulk of the species richness and ecological diversity originated during the Late Miocene and into the Early Pliocene, a time co-incident with the origin of polar conditions and increased ice activity in the Southern Ocean. Our results challenge the current understanding of the evolution of Antarctic notothenioids suggesting that the ecological opportunity that underlies this adaptive radiation is not linked to a single trait, but rather to a combination of freeze avoidance offered by AFGPs and subsequent exploitation of new habitats and open niches created by increased glacial and ice sheet activity.
Fil: Near, Thomas. University of Yale; Estados Unidos
Fil: Dornburg, Alex. University of Yale; Estados Unidos
Fil: Kuhn, K.. University of Yale; Estados Unidos
Fil: Eastman,Joseph T.. Ohio State University; Estados Unidos
Fil: Pennington, Jillian N.. University of Yale; Estados Unidos
Fil: Patarnello, Tomaso. Università di Padova; Italia
Fil: Zane, Lorenzo. Università di Padova; Italia
Fil: Fernandez, Daniel Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Jones, Christopher D.. National Oceanic And Atmospheric Administration; Estados Unidos
Materia
BUOYANCY
ICEFISH
MOLECULAR CLOCK
NOTOTHENIOIDEI
PERCOMORPHA
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:11336/128305

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network_name_str CONICET Digital (CONICET)
spelling Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishesNear, ThomasDornburg, AlexKuhn, K.Eastman,Joseph T.Pennington, Jillian N.Patarnello, TomasoZane, LorenzoFernandez, Daniel AlfredoJones, Christopher D.BUOYANCYICEFISHMOLECULAR CLOCKNOTOTHENIOIDEIPERCOMORPHAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The Southern Ocean around Antarctica is among the most rapidly warming regions on Earth, but has experienced episodic climate change during the past 40 million years. It remains unclear how ancient periods of climate change have shaped Antarctic bio-diversity. The origin of antifreeze glycoproteins (AFGPs) in Antarctic notothenioid fishes has become a classic example of how the evolution of a key innovation in response to climate change can drive adaptive radiation. By using a time-calibrated molecular phylogeny of notothenioids and reconstructed paleoclimate, we demonstrate that the origin of AFGP occurred between 42 and 22 Ma, which includes a period of global cooling approximately 35 Ma. However, the most species-rich lineages diversified and evolved significant ecological differences at least 10 million years after the origin of AFGPs, during a second cooling event in the Late Miocene (11.6-5.3 Ma). This pattern indicates that AFGP was not the sole trigger of the notothenioid adaptive radiation. Instead, the bulk of the species richness and ecological diversity originated during the Late Miocene and into the Early Pliocene, a time co-incident with the origin of polar conditions and increased ice activity in the Southern Ocean. Our results challenge the current understanding of the evolution of Antarctic notothenioids suggesting that the ecological opportunity that underlies this adaptive radiation is not linked to a single trait, but rather to a combination of freeze avoidance offered by AFGPs and subsequent exploitation of new habitats and open niches created by increased glacial and ice sheet activity.Fil: Near, Thomas. University of Yale; Estados UnidosFil: Dornburg, Alex. University of Yale; Estados UnidosFil: Kuhn, K.. University of Yale; Estados UnidosFil: Eastman,Joseph T.. Ohio State University; Estados UnidosFil: Pennington, Jillian N.. University of Yale; Estados UnidosFil: Patarnello, Tomaso. Università di Padova; ItaliaFil: Zane, Lorenzo. Università di Padova; ItaliaFil: Fernandez, Daniel Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Jones, Christopher D.. National Oceanic And Atmospheric Administration; Estados UnidosNational Academy of Sciences2012-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/128305Near, Thomas; Dornburg, Alex; Kuhn, K.; Eastman,Joseph T.; Pennington, Jillian N.; et al.; Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes; National Academy of Sciences; Proceedings of the National Academy of Sciences of The United States of America; 109; 9; 2-2012; 3434-34390027-8424CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.pnas.org/content/109/9/3434info:eu-repo/semantics/altIdentifier/doi/10.1073/pnas.1115169109info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:39:33Zoai:ri.conicet.gov.ar:11336/128305instacron: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:34982025-09-29 10:39:33.458CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes
title Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes
spellingShingle Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes
Near, Thomas
BUOYANCY
ICEFISH
MOLECULAR CLOCK
NOTOTHENIOIDEI
PERCOMORPHA
title_short Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes
title_full Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes
title_fullStr Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes
title_full_unstemmed Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes
title_sort Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes
dc.creator.none.fl_str_mv Near, Thomas
Dornburg, Alex
Kuhn, K.
Eastman,Joseph T.
Pennington, Jillian N.
Patarnello, Tomaso
Zane, Lorenzo
Fernandez, Daniel Alfredo
Jones, Christopher D.
author Near, Thomas
author_facet Near, Thomas
Dornburg, Alex
Kuhn, K.
Eastman,Joseph T.
Pennington, Jillian N.
Patarnello, Tomaso
Zane, Lorenzo
Fernandez, Daniel Alfredo
Jones, Christopher D.
author_role author
author2 Dornburg, Alex
Kuhn, K.
Eastman,Joseph T.
Pennington, Jillian N.
Patarnello, Tomaso
Zane, Lorenzo
Fernandez, Daniel Alfredo
Jones, Christopher D.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv BUOYANCY
ICEFISH
MOLECULAR CLOCK
NOTOTHENIOIDEI
PERCOMORPHA
topic BUOYANCY
ICEFISH
MOLECULAR CLOCK
NOTOTHENIOIDEI
PERCOMORPHA
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 Southern Ocean around Antarctica is among the most rapidly warming regions on Earth, but has experienced episodic climate change during the past 40 million years. It remains unclear how ancient periods of climate change have shaped Antarctic bio-diversity. The origin of antifreeze glycoproteins (AFGPs) in Antarctic notothenioid fishes has become a classic example of how the evolution of a key innovation in response to climate change can drive adaptive radiation. By using a time-calibrated molecular phylogeny of notothenioids and reconstructed paleoclimate, we demonstrate that the origin of AFGP occurred between 42 and 22 Ma, which includes a period of global cooling approximately 35 Ma. However, the most species-rich lineages diversified and evolved significant ecological differences at least 10 million years after the origin of AFGPs, during a second cooling event in the Late Miocene (11.6-5.3 Ma). This pattern indicates that AFGP was not the sole trigger of the notothenioid adaptive radiation. Instead, the bulk of the species richness and ecological diversity originated during the Late Miocene and into the Early Pliocene, a time co-incident with the origin of polar conditions and increased ice activity in the Southern Ocean. Our results challenge the current understanding of the evolution of Antarctic notothenioids suggesting that the ecological opportunity that underlies this adaptive radiation is not linked to a single trait, but rather to a combination of freeze avoidance offered by AFGPs and subsequent exploitation of new habitats and open niches created by increased glacial and ice sheet activity.
Fil: Near, Thomas. University of Yale; Estados Unidos
Fil: Dornburg, Alex. University of Yale; Estados Unidos
Fil: Kuhn, K.. University of Yale; Estados Unidos
Fil: Eastman,Joseph T.. Ohio State University; Estados Unidos
Fil: Pennington, Jillian N.. University of Yale; Estados Unidos
Fil: Patarnello, Tomaso. Università di Padova; Italia
Fil: Zane, Lorenzo. Università di Padova; Italia
Fil: Fernandez, Daniel Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Jones, Christopher D.. National Oceanic And Atmospheric Administration; Estados Unidos
description The Southern Ocean around Antarctica is among the most rapidly warming regions on Earth, but has experienced episodic climate change during the past 40 million years. It remains unclear how ancient periods of climate change have shaped Antarctic bio-diversity. The origin of antifreeze glycoproteins (AFGPs) in Antarctic notothenioid fishes has become a classic example of how the evolution of a key innovation in response to climate change can drive adaptive radiation. By using a time-calibrated molecular phylogeny of notothenioids and reconstructed paleoclimate, we demonstrate that the origin of AFGP occurred between 42 and 22 Ma, which includes a period of global cooling approximately 35 Ma. However, the most species-rich lineages diversified and evolved significant ecological differences at least 10 million years after the origin of AFGPs, during a second cooling event in the Late Miocene (11.6-5.3 Ma). This pattern indicates that AFGP was not the sole trigger of the notothenioid adaptive radiation. Instead, the bulk of the species richness and ecological diversity originated during the Late Miocene and into the Early Pliocene, a time co-incident with the origin of polar conditions and increased ice activity in the Southern Ocean. Our results challenge the current understanding of the evolution of Antarctic notothenioids suggesting that the ecological opportunity that underlies this adaptive radiation is not linked to a single trait, but rather to a combination of freeze avoidance offered by AFGPs and subsequent exploitation of new habitats and open niches created by increased glacial and ice sheet activity.
publishDate 2012
dc.date.none.fl_str_mv 2012-02
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/11336/128305
Near, Thomas; Dornburg, Alex; Kuhn, K.; Eastman,Joseph T.; Pennington, Jillian N.; et al.; Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes; National Academy of Sciences; Proceedings of the National Academy of Sciences of The United States of America; 109; 9; 2-2012; 3434-3439
0027-8424
CONICET Digital
CONICET
url http://hdl.handle.net/11336/128305
identifier_str_mv Near, Thomas; Dornburg, Alex; Kuhn, K.; Eastman,Joseph T.; Pennington, Jillian N.; et al.; Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes; National Academy of Sciences; Proceedings of the National Academy of Sciences of The United States of America; 109; 9; 2-2012; 3434-3439
0027-8424
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://www.pnas.org/content/109/9/3434
info:eu-repo/semantics/altIdentifier/doi/10.1073/pnas.1115169109
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 National Academy of Sciences
publisher.none.fl_str_mv National Academy of Sciences
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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