Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species concept

Autores
Denham, Silvia Suyai; Aliscioni, Sandra Silvina
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The "Sporobolus aeneus complex" constitutes a morphologically well‐defined group of species with lax, exerted, pyramidal panicles with verticillate branches, and comprises 14 species and six infraspecific taxa in southern South America (eastern Bolivia, eastern Paraguay, Uruguay, southern Brazil, northeastern Argentina). Species delimitation in the complex remains unresolved. To clarify the taxonomy of the group, multivariate analyses of qualitative and quantitative characters from herbaria specimens were performed. We applied the phylogenetic species concept and we used a modified "population aggregation analysis." Five species (S. aeneus, S. cubensis, S. linearifolius, S. multinodis, S. recurvatus) are recognized by unique combinations of qualitative character states, and three varieties based on significant mean value differences of quantitative characters. We conclude that leaf blade pilosity, widely used as a diagnostic character in the complex, is affected by external conditions like fire or blade age and is taxonomically unreliable. Two new cominations,Sporobolus aeneus var. angustifolia (Döll) S. Denham & Aliscioni and S. aeneus var.eximius (Nees ex Trin.) S. Denham & Aliscioni are made. Vilfa acuminata Trin. and Vilfa eximia Nees ex Trin. are lectotypified.
Fil: Denham, Silvia Suyai. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; Argentina
Fil: Aliscioni, Sandra Silvina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Botánica Agrícola; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Multivariate Analyses
Populations Aggregation Analysis
Phylogenetic Species Concept
South America
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:11336/68815
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species conceptDenham, Silvia SuyaiAliscioni, Sandra SilvinaMultivariate AnalysesPopulations Aggregation AnalysisPhylogenetic Species ConceptSouth Americahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The "Sporobolus aeneus complex" constitutes a morphologically well‐defined group of species with lax, exerted, pyramidal panicles with verticillate branches, and comprises 14 species and six infraspecific taxa in southern South America (eastern Bolivia, eastern Paraguay, Uruguay, southern Brazil, northeastern Argentina). Species delimitation in the complex remains unresolved. To clarify the taxonomy of the group, multivariate analyses of qualitative and quantitative characters from herbaria specimens were performed. We applied the phylogenetic species concept and we used a modified "population aggregation analysis." Five species (S. aeneus, S. cubensis, S. linearifolius, S. multinodis, S. recurvatus) are recognized by unique combinations of qualitative character states, and three varieties based on significant mean value differences of quantitative characters. We conclude that leaf blade pilosity, widely used as a diagnostic character in the complex, is affected by external conditions like fire or blade age and is taxonomically unreliable. Two new cominations,Sporobolus aeneus var. angustifolia (Döll) S. Denham & Aliscioni and S. aeneus var.eximius (Nees ex Trin.) S. Denham & Aliscioni are made. Vilfa acuminata Trin. and Vilfa eximia Nees ex Trin. are lectotypified.Fil: Denham, Silvia Suyai. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; ArgentinaFil: Aliscioni, Sandra Silvina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Botánica Agrícola; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaWiley2010-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68815Denham, Silvia Suyai; Aliscioni, Sandra Silvina; Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species concept; Wiley; Taxon; 59; 6; 12-2010; 1765-17820040-0262CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1002/tax.596010info:eu-repo/semantics/altIdentifier/doi/10.1002/tax.596010info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:09:07Zoai:ri.conicet.gov.ar:11336/68815instacron: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 10:09:07.521CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species concept
title Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species concept
spellingShingle Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species concept
Denham, Silvia Suyai
Multivariate Analyses
Populations Aggregation Analysis
Phylogenetic Species Concept
South America
title_short Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species concept
title_full Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species concept
title_fullStr Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species concept
title_full_unstemmed Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species concept
title_sort Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species concept
dc.creator.none.fl_str_mv Denham, Silvia Suyai
Aliscioni, Sandra Silvina
author Denham, Silvia Suyai
author_facet Denham, Silvia Suyai
Aliscioni, Sandra Silvina
author_role author
author2 Aliscioni, Sandra Silvina
author2_role author
dc.subject.none.fl_str_mv Multivariate Analyses
Populations Aggregation Analysis
Phylogenetic Species Concept
South America
topic Multivariate Analyses
Populations Aggregation Analysis
Phylogenetic Species Concept
South America
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 "Sporobolus aeneus complex" constitutes a morphologically well‐defined group of species with lax, exerted, pyramidal panicles with verticillate branches, and comprises 14 species and six infraspecific taxa in southern South America (eastern Bolivia, eastern Paraguay, Uruguay, southern Brazil, northeastern Argentina). Species delimitation in the complex remains unresolved. To clarify the taxonomy of the group, multivariate analyses of qualitative and quantitative characters from herbaria specimens were performed. We applied the phylogenetic species concept and we used a modified "population aggregation analysis." Five species (S. aeneus, S. cubensis, S. linearifolius, S. multinodis, S. recurvatus) are recognized by unique combinations of qualitative character states, and three varieties based on significant mean value differences of quantitative characters. We conclude that leaf blade pilosity, widely used as a diagnostic character in the complex, is affected by external conditions like fire or blade age and is taxonomically unreliable. Two new cominations,Sporobolus aeneus var. angustifolia (Döll) S. Denham & Aliscioni and S. aeneus var.eximius (Nees ex Trin.) S. Denham & Aliscioni are made. Vilfa acuminata Trin. and Vilfa eximia Nees ex Trin. are lectotypified.
Fil: Denham, Silvia Suyai. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; Argentina
Fil: Aliscioni, Sandra Silvina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Botánica Agrícola; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description The "Sporobolus aeneus complex" constitutes a morphologically well‐defined group of species with lax, exerted, pyramidal panicles with verticillate branches, and comprises 14 species and six infraspecific taxa in southern South America (eastern Bolivia, eastern Paraguay, Uruguay, southern Brazil, northeastern Argentina). Species delimitation in the complex remains unresolved. To clarify the taxonomy of the group, multivariate analyses of qualitative and quantitative characters from herbaria specimens were performed. We applied the phylogenetic species concept and we used a modified "population aggregation analysis." Five species (S. aeneus, S. cubensis, S. linearifolius, S. multinodis, S. recurvatus) are recognized by unique combinations of qualitative character states, and three varieties based on significant mean value differences of quantitative characters. We conclude that leaf blade pilosity, widely used as a diagnostic character in the complex, is affected by external conditions like fire or blade age and is taxonomically unreliable. Two new cominations,Sporobolus aeneus var. angustifolia (Döll) S. Denham & Aliscioni and S. aeneus var.eximius (Nees ex Trin.) S. Denham & Aliscioni are made. Vilfa acuminata Trin. and Vilfa eximia Nees ex Trin. are lectotypified.
publishDate 2010
dc.date.none.fl_str_mv 2010-12
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/11336/68815
Denham, Silvia Suyai; Aliscioni, Sandra Silvina; Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species concept; Wiley; Taxon; 59; 6; 12-2010; 1765-1782
0040-0262
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68815
identifier_str_mv Denham, Silvia Suyai; Aliscioni, Sandra Silvina; Species delimitation in the Sporobolus aeneus complex (Zoysieae, Chloridoideae, Poaceae) using the phylogenetic species concept; Wiley; Taxon; 59; 6; 12-2010; 1765-1782
0040-0262
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://onlinelibrary.wiley.com/doi/10.1002/tax.596010
info:eu-repo/semantics/altIdentifier/doi/10.1002/tax.596010
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
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
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 13.070432

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