Phenotypic diversity in Argentinian populations of Bromus catharticus (Poaceae): genetic and environmental components of quantitative traits

Autores
Aulicino, Mónica Beatriz; Arturi, Miguel Jacinto
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Genetic and environmental components were analysed in 32 Argentinian populations of Bromus catharticus. The research was based on 39 vegetative and reproductive characters. Constancy (rc) and heritability (h2) ratios were calculated. ANOVAS showed differences between populations for 14 traits, most of them reproductive. Total phenotypic variation was mostly due to the environmental component. Microfloral attributes showed the highest values of rc and h2. The traits average length of the spikelets (LS), average number of florets per spikelet (NFS), and lemma length (LL), which simultaneously reach rc values higher than 1 and h2 values higher than 0.60, could be considered useful in systematic studies. Leaf, stem, and some reproductive characters, linked to propagule production, had plastic responses. However, traits associated with size and shape of propagules and spikelets remained constant. Results suggest that a double strategy is operating: plasticity in some traits (to give greater adaptability), and constancy in other traits related to species stability that are of systematic significance.
Facultad de Ciencias Agrarias y Forestales
Materia
Ciencias Agrarias
Bromus catharticus
Constancy
Environmental variation
Genetic variation
Heritability
Phenotypic plasticity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/83581

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network_name_str SEDICI (UNLP)
spelling Phenotypic diversity in Argentinian populations of Bromus catharticus (Poaceae): genetic and environmental components of quantitative traitsAulicino, Mónica BeatrizArturi, Miguel JacintoCiencias AgrariasBromus catharticusConstancyEnvironmental variationGenetic variationHeritabilityPhenotypic plasticityGenetic and environmental components were analysed in 32 Argentinian populations of Bromus catharticus. The research was based on 39 vegetative and reproductive characters. Constancy (rc) and heritability (h2) ratios were calculated. ANOVAS showed differences between populations for 14 traits, most of them reproductive. Total phenotypic variation was mostly due to the environmental component. Microfloral attributes showed the highest values of rc and h2. The traits average length of the spikelets (LS), average number of florets per spikelet (NFS), and lemma length (LL), which simultaneously reach rc values higher than 1 and h2 values higher than 0.60, could be considered useful in systematic studies. Leaf, stem, and some reproductive characters, linked to propagule production, had plastic responses. However, traits associated with size and shape of propagules and spikelets remained constant. Results suggest that a double strategy is operating: plasticity in some traits (to give greater adaptability), and constancy in other traits related to species stability that are of systematic significance.Facultad de Ciencias Agrarias y Forestales2002info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf223-234http://sedici.unlp.edu.ar/handle/10915/83581enginfo:eu-repo/semantics/altIdentifier/issn/0028-825Xinfo:eu-repo/semantics/altIdentifier/doi/10.1080/0028825X.2002.9512785info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:15:50Zoai:sedici.unlp.edu.ar:10915/83581Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:50.921SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Phenotypic diversity in Argentinian populations of Bromus catharticus (Poaceae): genetic and environmental components of quantitative traits
title Phenotypic diversity in Argentinian populations of Bromus catharticus (Poaceae): genetic and environmental components of quantitative traits
spellingShingle Phenotypic diversity in Argentinian populations of Bromus catharticus (Poaceae): genetic and environmental components of quantitative traits
Aulicino, Mónica Beatriz
Ciencias Agrarias
Bromus catharticus
Constancy
Environmental variation
Genetic variation
Heritability
Phenotypic plasticity
title_short Phenotypic diversity in Argentinian populations of Bromus catharticus (Poaceae): genetic and environmental components of quantitative traits
title_full Phenotypic diversity in Argentinian populations of Bromus catharticus (Poaceae): genetic and environmental components of quantitative traits
title_fullStr Phenotypic diversity in Argentinian populations of Bromus catharticus (Poaceae): genetic and environmental components of quantitative traits
title_full_unstemmed Phenotypic diversity in Argentinian populations of Bromus catharticus (Poaceae): genetic and environmental components of quantitative traits
title_sort Phenotypic diversity in Argentinian populations of Bromus catharticus (Poaceae): genetic and environmental components of quantitative traits
dc.creator.none.fl_str_mv Aulicino, Mónica Beatriz
Arturi, Miguel Jacinto
author Aulicino, Mónica Beatriz
author_facet Aulicino, Mónica Beatriz
Arturi, Miguel Jacinto
author_role author
author2 Arturi, Miguel Jacinto
author2_role author
dc.subject.none.fl_str_mv Ciencias Agrarias
Bromus catharticus
Constancy
Environmental variation
Genetic variation
Heritability
Phenotypic plasticity
topic Ciencias Agrarias
Bromus catharticus
Constancy
Environmental variation
Genetic variation
Heritability
Phenotypic plasticity
dc.description.none.fl_txt_mv Genetic and environmental components were analysed in 32 Argentinian populations of Bromus catharticus. The research was based on 39 vegetative and reproductive characters. Constancy (rc) and heritability (h2) ratios were calculated. ANOVAS showed differences between populations for 14 traits, most of them reproductive. Total phenotypic variation was mostly due to the environmental component. Microfloral attributes showed the highest values of rc and h2. The traits average length of the spikelets (LS), average number of florets per spikelet (NFS), and lemma length (LL), which simultaneously reach rc values higher than 1 and h2 values higher than 0.60, could be considered useful in systematic studies. Leaf, stem, and some reproductive characters, linked to propagule production, had plastic responses. However, traits associated with size and shape of propagules and spikelets remained constant. Results suggest that a double strategy is operating: plasticity in some traits (to give greater adaptability), and constancy in other traits related to species stability that are of systematic significance.
Facultad de Ciencias Agrarias y Forestales
description Genetic and environmental components were analysed in 32 Argentinian populations of Bromus catharticus. The research was based on 39 vegetative and reproductive characters. Constancy (rc) and heritability (h2) ratios were calculated. ANOVAS showed differences between populations for 14 traits, most of them reproductive. Total phenotypic variation was mostly due to the environmental component. Microfloral attributes showed the highest values of rc and h2. The traits average length of the spikelets (LS), average number of florets per spikelet (NFS), and lemma length (LL), which simultaneously reach rc values higher than 1 and h2 values higher than 0.60, could be considered useful in systematic studies. Leaf, stem, and some reproductive characters, linked to propagule production, had plastic responses. However, traits associated with size and shape of propagules and spikelets remained constant. Results suggest that a double strategy is operating: plasticity in some traits (to give greater adaptability), and constancy in other traits related to species stability that are of systematic significance.
publishDate 2002
dc.date.none.fl_str_mv 2002
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/83581
url http://sedici.unlp.edu.ar/handle/10915/83581
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0028-825X
info:eu-repo/semantics/altIdentifier/doi/10.1080/0028825X.2002.9512785
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
223-234
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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