Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica
The Asteraceae (sunflowers and daisies) are the most diversefamily of flowering plants. Despite their prominent role in extantterrestrial ecosystems, the early evolutionary history of this familyremains poorly understood. Here we report the discovery of anumber of fossil pollen grains preserved in d...
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ftconicet:oai:ri.conicet.gov.ar:11336/7528 2023-10-09T21:47:14+02:00 Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica Barreda, Viviana Dora Palazzesi, Luis Telleria, Maria Cristina Olivero, Eduardo Bernardo Raine, Ian Forest, Félix application/pdf http://hdl.handle.net/11336/7528 eng eng National Academy Of Sciences info:eu-repo/semantics/altIdentifier/url/http://www.pnas.org/content/112/35/10989.short info:eu-repo/semantics/altIdentifier/doi/10.1073/pnas.1423653112 http://hdl.handle.net/11336/7528 Barreda, Viviana Dora; Palazzesi, Luis; Telleria, Maria Cristina; Olivero, Eduardo Bernardo; Raine, Ian; et al.; Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica; National Academy Of Sciences; Proceedings Of The National Academy Of Sciences Of The United States Of America; 112; 35; 8-2015; 10989-10994 0027-8424 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Asteraceae Evolution Antarctica Fossil Phylogenetics https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1073/pnas.1423653112 2023-09-24T19:32:13Z The Asteraceae (sunflowers and daisies) are the most diversefamily of flowering plants. Despite their prominent role in extantterrestrial ecosystems, the early evolutionary history of this familyremains poorly understood. Here we report the discovery of anumber of fossil pollen grains preserved in dinosaur-bearing depositsfrom the Late Cretaceous of Antarctica that drastically pushes backthe timing of assumed origin of the family. Reliably dated to ∼76?66Mya, these specimens are about 20 million years older than previouslyknown records for the Asteraceae. Using a phylogenetic approach,we interpreted these fossil specimens as members of anextinct early diverging clade of the family, associated with subfamilyBarnadesioideae. Based on a molecular phylogenetic tree calibratedusing fossils, including the ones reported here, we estimated that themost recent common ancestor of the family lived at least 80 Mya inGondwana, well before the thermal and biogeographical isolation ofAntarctica. Most of the early diverging lineages of the family originatedin a narrow time interval after the K/P boundary, 60?50 Mya,coinciding with a pronounced climatic warming during the Late Paleoceneand Early Eocene, and the scene of a dramatic rise in floweringplant diversity. Our age estimates reduce earlier discrepanciesbetween the age of the fossil record and previous molecular estimatesfor the origin of the family, bearing important implicationsin the evolution of flowering plants in general. Fil: Barreda, Viviana Dora. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina Fil: Palazzesi, Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina. Royal Botanic Gardens; Reino Unido Fil: Telleria, Maria Cristina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo; Argentina Fil: ... Article in Journal/Newspaper Antarc* Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentino Argentina Proceedings of the National Academy of Sciences 112 35 10989 10994 |
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Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Asteraceae Evolution Antarctica Fossil Phylogenetics https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Asteraceae Evolution Antarctica Fossil Phylogenetics https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Barreda, Viviana Dora Palazzesi, Luis Telleria, Maria Cristina Olivero, Eduardo Bernardo Raine, Ian Forest, Félix Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica |
topic_facet |
Asteraceae Evolution Antarctica Fossil Phylogenetics https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
The Asteraceae (sunflowers and daisies) are the most diversefamily of flowering plants. Despite their prominent role in extantterrestrial ecosystems, the early evolutionary history of this familyremains poorly understood. Here we report the discovery of anumber of fossil pollen grains preserved in dinosaur-bearing depositsfrom the Late Cretaceous of Antarctica that drastically pushes backthe timing of assumed origin of the family. Reliably dated to ∼76?66Mya, these specimens are about 20 million years older than previouslyknown records for the Asteraceae. Using a phylogenetic approach,we interpreted these fossil specimens as members of anextinct early diverging clade of the family, associated with subfamilyBarnadesioideae. Based on a molecular phylogenetic tree calibratedusing fossils, including the ones reported here, we estimated that themost recent common ancestor of the family lived at least 80 Mya inGondwana, well before the thermal and biogeographical isolation ofAntarctica. Most of the early diverging lineages of the family originatedin a narrow time interval after the K/P boundary, 60?50 Mya,coinciding with a pronounced climatic warming during the Late Paleoceneand Early Eocene, and the scene of a dramatic rise in floweringplant diversity. Our age estimates reduce earlier discrepanciesbetween the age of the fossil record and previous molecular estimatesfor the origin of the family, bearing important implicationsin the evolution of flowering plants in general. Fil: Barreda, Viviana Dora. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina Fil: Palazzesi, Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina. Royal Botanic Gardens; Reino Unido Fil: Telleria, Maria Cristina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo; Argentina Fil: ... |
format |
Article in Journal/Newspaper |
author |
Barreda, Viviana Dora Palazzesi, Luis Telleria, Maria Cristina Olivero, Eduardo Bernardo Raine, Ian Forest, Félix |
author_facet |
Barreda, Viviana Dora Palazzesi, Luis Telleria, Maria Cristina Olivero, Eduardo Bernardo Raine, Ian Forest, Félix |
author_sort |
Barreda, Viviana Dora |
title |
Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica |
title_short |
Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica |
title_full |
Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica |
title_fullStr |
Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica |
title_full_unstemmed |
Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica |
title_sort |
early evolution of the angiosperm clade asteraceae in the cretaceous of antarctica |
publisher |
National Academy Of Sciences |
url |
http://hdl.handle.net/11336/7528 |
geographic |
Argentino Argentina |
geographic_facet |
Argentino Argentina |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://www.pnas.org/content/112/35/10989.short info:eu-repo/semantics/altIdentifier/doi/10.1073/pnas.1423653112 http://hdl.handle.net/11336/7528 Barreda, Viviana Dora; Palazzesi, Luis; Telleria, Maria Cristina; Olivero, Eduardo Bernardo; Raine, Ian; et al.; Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica; National Academy Of Sciences; Proceedings Of The National Academy Of Sciences Of The United States Of America; 112; 35; 8-2015; 10989-10994 0027-8424 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1073/pnas.1423653112 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
112 |
container_issue |
35 |
container_start_page |
10989 |
op_container_end_page |
10994 |
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1779310181242372096 |