Genome size variation and polyploidy incidence in the alpine flora from Spain
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/25663 https://doi.org/10.3989/ajbm.2350 |
Resumo: | The interest to study genome evolution, in particular genome size variation and polyploid incidence, has increased in recent years. Still, only a few studies have been focused at a community level. Of particular interest are high mountain species, because of the high frequency of narrow endemics and their higher susceptibility to extinction due to the effects of climate change. In the present study we explored genome size variation and polyploidy incidence in the entomophilous plant communities of two distinct mountain ranges, the Sierra Nevada and Picos de Europa National Parks. For that, chromosome numbers and DNA ploidies were assessed through a review of the literature, and the genome size and incidence of polyploidy in 39 taxa from several key genera were estimated using flow cytometry. In this study, first genome size estimations are given for 32 taxa. The majority of the analyzed taxa presented very small to small genome sizes (2C ≤ 7.0 pg), with no differences being detected between genome size and geographic origin and distribution ranges. A low incidence of polyploid taxa was observed (23.3%), with polyploids being more common in Picos de Europa than in Sierra Nevada. Most taxa inferred as polyploids were high altitude plants, but no clear pattern between polyploidy incidence and endemic status was observed. The obtained results are discussed within the context of angiosperm’s genome size variation and of polyploidy incidence in alpine and arctic flora, contributing to the scientific knowledge of these natural communities of great biological importance. |
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Genome size variation and polyploidy incidence in the alpine flora from Spainalpine vegetationDNA ploidy levelnuclear DNA contentPicos de EuropaSierra NevadaThe interest to study genome evolution, in particular genome size variation and polyploid incidence, has increased in recent years. Still, only a few studies have been focused at a community level. Of particular interest are high mountain species, because of the high frequency of narrow endemics and their higher susceptibility to extinction due to the effects of climate change. In the present study we explored genome size variation and polyploidy incidence in the entomophilous plant communities of two distinct mountain ranges, the Sierra Nevada and Picos de Europa National Parks. For that, chromosome numbers and DNA ploidies were assessed through a review of the literature, and the genome size and incidence of polyploidy in 39 taxa from several key genera were estimated using flow cytometry. In this study, first genome size estimations are given for 32 taxa. The majority of the analyzed taxa presented very small to small genome sizes (2C ≤ 7.0 pg), with no differences being detected between genome size and geographic origin and distribution ranges. A low incidence of polyploid taxa was observed (23.3%), with polyploids being more common in Picos de Europa than in Sierra Nevada. Most taxa inferred as polyploids were high altitude plants, but no clear pattern between polyploidy incidence and endemic status was observed. The obtained results are discussed within the context of angiosperm’s genome size variation and of polyploidy incidence in alpine and arctic flora, contributing to the scientific knowledge of these natural communities of great biological importance.This work was partially supported by the Organismo Autónomo de Parques Nacionales (014/2009 - POLPINE - Interacciones entre polinizadores y plantas alpinas: conservación de la biodiversidad en áreas protegidas de alta montaña). R. Torices was partially supported by a postdoctoral fellowship from Spanish Minister of Education (BVA 2010-0375).Jardín Botánico de Madrid2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/25663http://hdl.handle.net/10316/25663https://doi.org/10.3989/ajbm.2350enghttp://rjb.revistas.csic.es/index.php/rjb/article/view/391Loureiro, J.Castro, MarianaOliveira, José Cerca deMota, LucieTorices, Rubéninfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2021-08-23T10:31:54Zoai:estudogeral.uc.pt:10316/25663Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:56:03.997272Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Genome size variation and polyploidy incidence in the alpine flora from Spain |
title |
Genome size variation and polyploidy incidence in the alpine flora from Spain |
spellingShingle |
Genome size variation and polyploidy incidence in the alpine flora from Spain Loureiro, J. alpine vegetation DNA ploidy level nuclear DNA content Picos de Europa Sierra Nevada |
title_short |
Genome size variation and polyploidy incidence in the alpine flora from Spain |
title_full |
Genome size variation and polyploidy incidence in the alpine flora from Spain |
title_fullStr |
Genome size variation and polyploidy incidence in the alpine flora from Spain |
title_full_unstemmed |
Genome size variation and polyploidy incidence in the alpine flora from Spain |
title_sort |
Genome size variation and polyploidy incidence in the alpine flora from Spain |
author |
Loureiro, J. |
author_facet |
Loureiro, J. Castro, Mariana Oliveira, José Cerca de Mota, Lucie Torices, Rubén |
author_role |
author |
author2 |
Castro, Mariana Oliveira, José Cerca de Mota, Lucie Torices, Rubén |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Loureiro, J. Castro, Mariana Oliveira, José Cerca de Mota, Lucie Torices, Rubén |
dc.subject.por.fl_str_mv |
alpine vegetation DNA ploidy level nuclear DNA content Picos de Europa Sierra Nevada |
topic |
alpine vegetation DNA ploidy level nuclear DNA content Picos de Europa Sierra Nevada |
description |
The interest to study genome evolution, in particular genome size variation and polyploid incidence, has increased in recent years. Still, only a few studies have been focused at a community level. Of particular interest are high mountain species, because of the high frequency of narrow endemics and their higher susceptibility to extinction due to the effects of climate change. In the present study we explored genome size variation and polyploidy incidence in the entomophilous plant communities of two distinct mountain ranges, the Sierra Nevada and Picos de Europa National Parks. For that, chromosome numbers and DNA ploidies were assessed through a review of the literature, and the genome size and incidence of polyploidy in 39 taxa from several key genera were estimated using flow cytometry. In this study, first genome size estimations are given for 32 taxa. The majority of the analyzed taxa presented very small to small genome sizes (2C ≤ 7.0 pg), with no differences being detected between genome size and geographic origin and distribution ranges. A low incidence of polyploid taxa was observed (23.3%), with polyploids being more common in Picos de Europa than in Sierra Nevada. Most taxa inferred as polyploids were high altitude plants, but no clear pattern between polyploidy incidence and endemic status was observed. The obtained results are discussed within the context of angiosperm’s genome size variation and of polyploidy incidence in alpine and arctic flora, contributing to the scientific knowledge of these natural communities of great biological importance. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/25663 http://hdl.handle.net/10316/25663 https://doi.org/10.3989/ajbm.2350 |
url |
http://hdl.handle.net/10316/25663 https://doi.org/10.3989/ajbm.2350 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://rjb.revistas.csic.es/index.php/rjb/article/view/391 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Jardín Botánico de Madrid |
publisher.none.fl_str_mv |
Jardín Botánico de Madrid |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133846056206336 |