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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/128305
Ver los metadatos del registro completo
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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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1844614421381382144 |
score |
13.070432 |