Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels

Autores
Nagahama, Nicolas; Vegetti, Abelardo Carlos; Anton, Ana Maria Ramona; Norrmann, Guillermo Alberto
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In southern South America, Andropogon sect. Leptopogon is represented by both diploid and hexaploid species. In order to compare the synflorescence structures and floral arrays in relation to ploidy levels in species of Andropogon, the section Leptopogon was used as model. In this study, the synflorescence structure was typologically characterized. The structural analysis was based on the typology system developed by Troll and Weberling, which has proved useful in describing inflorescences. A comparative analysis of the variations observed in the structure of the synflorescence and a morphometric analysis using principal component analysis were carried out. These results revealed that diploid and hexaploid species present differences mainly in the following parameters: synflorescence length, number of internodes of the enrichment zone main axis, number of internodes and length of paracladia of the trophotagma, number of long paracladia per unit of inflorescence, length of hairs on articulated rachis internodes, pedicellate spikelet length, pedicellate spikelet width, pedicel width, length of hairs on pedicel, sessile spikelet length, awn length and floral system arrangements. This study provides a useful tool to distinguish between diploid and hexaploid species of Andropogon sect. Leptopogon. We propose naming the group of diploid species from Central and South America as the Andropogon selloanus complex.
Fil: Nagahama, Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Vegetti, Abelardo Carlos. Universidad Nacional del Litoral. Facultad de Cs.agrarias. Catedra de Morfologia Vegetal; Argentina
Fil: Anton, Ana Maria Ramona. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Norrmann, Guillermo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
Materia
Grass Inflorescence Structure
Multivariate Analysis
Taxonomy
Andropogon
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:11336/6249
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/6249
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network_name_str CONICET Digital (CONICET)
spelling Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levelsNagahama, NicolasVegetti, Abelardo CarlosAnton, Ana Maria RamonaNorrmann, Guillermo AlbertoGrass Inflorescence StructureMultivariate AnalysisTaxonomyAndropogonhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In southern South America, Andropogon sect. Leptopogon is represented by both diploid and hexaploid species. In order to compare the synflorescence structures and floral arrays in relation to ploidy levels in species of Andropogon, the section Leptopogon was used as model. In this study, the synflorescence structure was typologically characterized. The structural analysis was based on the typology system developed by Troll and Weberling, which has proved useful in describing inflorescences. A comparative analysis of the variations observed in the structure of the synflorescence and a morphometric analysis using principal component analysis were carried out. These results revealed that diploid and hexaploid species present differences mainly in the following parameters: synflorescence length, number of internodes of the enrichment zone main axis, number of internodes and length of paracladia of the trophotagma, number of long paracladia per unit of inflorescence, length of hairs on articulated rachis internodes, pedicellate spikelet length, pedicellate spikelet width, pedicel width, length of hairs on pedicel, sessile spikelet length, awn length and floral system arrangements. This study provides a useful tool to distinguish between diploid and hexaploid species of Andropogon sect. Leptopogon. We propose naming the group of diploid species from Central and South America as the Andropogon selloanus complex.Fil: Nagahama, Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); ArgentinaFil: Vegetti, Abelardo Carlos. Universidad Nacional del Litoral. Facultad de Cs.agrarias. Catedra de Morfologia Vegetal; ArgentinaFil: Anton, Ana Maria Ramona. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); ArgentinaFil: Norrmann, Guillermo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); ArgentinaMagnolia Press2013-02-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/6249Nagahama, Nicolas; Vegetti, Abelardo Carlos; Anton, Ana Maria Ramona; Norrmann, Guillermo Alberto; Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels; Magnolia Press; Phytotaxa; 82; 2; 25-2-2013; 45-631179-31551179-3163enginfo:eu-repo/semantics/altIdentifier/url/http://www.biotaxa.org/Phytotaxa/article/view/phytotaxa.82.2.1info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.11646/phytotaxa.82.2.1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:21:39Zoai:ri.conicet.gov.ar:11336/6249instacron: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:34982025-10-22 11:21:39.38CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels
title Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels
spellingShingle Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels
Nagahama, Nicolas
Grass Inflorescence Structure
Multivariate Analysis
Taxonomy
Andropogon
title_short Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels
title_full Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels
title_fullStr Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels
title_full_unstemmed Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels
title_sort Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels
dc.creator.none.fl_str_mv Nagahama, Nicolas
Vegetti, Abelardo Carlos
Anton, Ana Maria Ramona
Norrmann, Guillermo Alberto
author Nagahama, Nicolas
author_facet Nagahama, Nicolas
Vegetti, Abelardo Carlos
Anton, Ana Maria Ramona
Norrmann, Guillermo Alberto
author_role author
author2 Vegetti, Abelardo Carlos
Anton, Ana Maria Ramona
Norrmann, Guillermo Alberto
author2_role author
author
author
dc.subject.none.fl_str_mv Grass Inflorescence Structure
Multivariate Analysis
Taxonomy
Andropogon
topic Grass Inflorescence Structure
Multivariate Analysis
Taxonomy
Andropogon
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In southern South America, Andropogon sect. Leptopogon is represented by both diploid and hexaploid species. In order to compare the synflorescence structures and floral arrays in relation to ploidy levels in species of Andropogon, the section Leptopogon was used as model. In this study, the synflorescence structure was typologically characterized. The structural analysis was based on the typology system developed by Troll and Weberling, which has proved useful in describing inflorescences. A comparative analysis of the variations observed in the structure of the synflorescence and a morphometric analysis using principal component analysis were carried out. These results revealed that diploid and hexaploid species present differences mainly in the following parameters: synflorescence length, number of internodes of the enrichment zone main axis, number of internodes and length of paracladia of the trophotagma, number of long paracladia per unit of inflorescence, length of hairs on articulated rachis internodes, pedicellate spikelet length, pedicellate spikelet width, pedicel width, length of hairs on pedicel, sessile spikelet length, awn length and floral system arrangements. This study provides a useful tool to distinguish between diploid and hexaploid species of Andropogon sect. Leptopogon. We propose naming the group of diploid species from Central and South America as the Andropogon selloanus complex.
Fil: Nagahama, Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Vegetti, Abelardo Carlos. Universidad Nacional del Litoral. Facultad de Cs.agrarias. Catedra de Morfologia Vegetal; Argentina
Fil: Anton, Ana Maria Ramona. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Norrmann, Guillermo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
description In southern South America, Andropogon sect. Leptopogon is represented by both diploid and hexaploid species. In order to compare the synflorescence structures and floral arrays in relation to ploidy levels in species of Andropogon, the section Leptopogon was used as model. In this study, the synflorescence structure was typologically characterized. The structural analysis was based on the typology system developed by Troll and Weberling, which has proved useful in describing inflorescences. A comparative analysis of the variations observed in the structure of the synflorescence and a morphometric analysis using principal component analysis were carried out. These results revealed that diploid and hexaploid species present differences mainly in the following parameters: synflorescence length, number of internodes of the enrichment zone main axis, number of internodes and length of paracladia of the trophotagma, number of long paracladia per unit of inflorescence, length of hairs on articulated rachis internodes, pedicellate spikelet length, pedicellate spikelet width, pedicel width, length of hairs on pedicel, sessile spikelet length, awn length and floral system arrangements. This study provides a useful tool to distinguish between diploid and hexaploid species of Andropogon sect. Leptopogon. We propose naming the group of diploid species from Central and South America as the Andropogon selloanus complex.
publishDate 2013
dc.date.none.fl_str_mv 2013-02-25
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/11336/6249
Nagahama, Nicolas; Vegetti, Abelardo Carlos; Anton, Ana Maria Ramona; Norrmann, Guillermo Alberto; Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels; Magnolia Press; Phytotaxa; 82; 2; 25-2-2013; 45-63
1179-3155
1179-3163
url http://hdl.handle.net/11336/6249
identifier_str_mv Nagahama, Nicolas; Vegetti, Abelardo Carlos; Anton, Ana Maria Ramona; Norrmann, Guillermo Alberto; Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels; Magnolia Press; Phytotaxa; 82; 2; 25-2-2013; 45-63
1179-3155
1179-3163
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.biotaxa.org/Phytotaxa/article/view/phytotaxa.82.2.1
info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.11646/phytotaxa.82.2.1
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Magnolia Press
publisher.none.fl_str_mv Magnolia Press
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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score 12.982451

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