Genetic variability in natural populations of <i>Paspalum dilatatum</i> Poir. analyzed by means of morphological traits and molecular markers

Autores
García, María Victoria; Balatti, Pedro Alberto; Arturi, Miguel Jacinto
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Native species show adaptive traits that are difficult to find in introduced species. The Pampas region in Argentina is a valuable nature reserve of grasses and Paspalum dilatatum Poir. is one of the most important grasses found there. Based on ploidy level and on morphological traits, five biotypes of P. dilatatum have been described. Two of them were included in this study: a tetraploid biotype with sexual reproduction and a pentaploid biotype with apomictic reproduction. We analyzed the genetic diversity in eight native populations from the Salado basin, Argentina, using both quantitative traits and molecular data (RAPD) with these aims: to obtain information of the degree of phenotypic variation in that area, to know which the pattern of distribution of this variation is and to look for association between molecular markers with populational or biotypic differentiation. Cluster analysis based on morphological data grouped the individuals of the different populations by ploidy level. Molecular markers showed the inverse situation because individuals were grouped by geographic origin as opposed to biotype. Moreover, since RAPD did not discriminate between biotypes with sexual or apomictic reproduction, they are probably not associated with mating system. The results let us conclude that polygenic traits such as LP, LBSR, NRT and NSP can discriminate between biotypes and molecular markers such as bands 12, 40, 19 and 46 can be used to discriminate among populations, probably because they detect neutral variation.
Facultad de Ciencias Agrarias y Forestales
Materia
Ciencias Agrarias
Apomictic grass
Natural variation
Dallisgrass
Paspalum dilatatum
Pentaploid biotype
Tetraploid biotype
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:10915/130747

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spelling Genetic variability in natural populations of <i>Paspalum dilatatum</i> Poir. analyzed by means of morphological traits and molecular markersGarcía, María VictoriaBalatti, Pedro AlbertoArturi, Miguel JacintoCiencias AgrariasApomictic grassNatural variationDallisgrassPaspalum dilatatumPentaploid biotypeTetraploid biotypeNative species show adaptive traits that are difficult to find in introduced species. The Pampas region in Argentina is a valuable nature reserve of grasses and <i>Paspalum dilatatum</i> Poir. is one of the most important grasses found there. Based on ploidy level and on morphological traits, five biotypes of <i>P. dilatatum</i> have been described. Two of them were included in this study: a tetraploid biotype with sexual reproduction and a pentaploid biotype with apomictic reproduction. We analyzed the genetic diversity in eight native populations from the Salado basin, Argentina, using both quantitative traits and molecular data (RAPD) with these aims: to obtain information of the degree of phenotypic variation in that area, to know which the pattern of distribution of this variation is and to look for association between molecular markers with populational or biotypic differentiation. Cluster analysis based on morphological data grouped the individuals of the different populations by ploidy level. Molecular markers showed the inverse situation because individuals were grouped by geographic origin as opposed to biotype. Moreover, since RAPD did not discriminate between biotypes with sexual or apomictic reproduction, they are probably not associated with mating system. The results let us conclude that polygenic traits such as LP, LBSR, NRT and NSP can discriminate between biotypes and molecular markers such as bands 12, 40, 19 and 46 can be used to discriminate among populations, probably because they detect neutral variation.Facultad de Ciencias Agrarias y Forestales2007-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf935-946http://sedici.unlp.edu.ar/handle/10915/130747enginfo:eu-repo/semantics/altIdentifier/issn/0925-9864info:eu-repo/semantics/altIdentifier/issn/1573-5109info:eu-repo/semantics/altIdentifier/doi/10.1007/s10722-006-9147-8info: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:UNLP2025-09-29T11:32:37Zoai:sedici.unlp.edu.ar:10915/130747Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:32:38.054SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Genetic variability in natural populations of <i>Paspalum dilatatum</i> Poir. analyzed by means of morphological traits and molecular markers
title Genetic variability in natural populations of <i>Paspalum dilatatum</i> Poir. analyzed by means of morphological traits and molecular markers
spellingShingle Genetic variability in natural populations of <i>Paspalum dilatatum</i> Poir. analyzed by means of morphological traits and molecular markers
García, María Victoria
Ciencias Agrarias
Apomictic grass
Natural variation
Dallisgrass
Paspalum dilatatum
Pentaploid biotype
Tetraploid biotype
title_short Genetic variability in natural populations of <i>Paspalum dilatatum</i> Poir. analyzed by means of morphological traits and molecular markers
title_full Genetic variability in natural populations of <i>Paspalum dilatatum</i> Poir. analyzed by means of morphological traits and molecular markers
title_fullStr Genetic variability in natural populations of <i>Paspalum dilatatum</i> Poir. analyzed by means of morphological traits and molecular markers
title_full_unstemmed Genetic variability in natural populations of <i>Paspalum dilatatum</i> Poir. analyzed by means of morphological traits and molecular markers
title_sort Genetic variability in natural populations of <i>Paspalum dilatatum</i> Poir. analyzed by means of morphological traits and molecular markers
dc.creator.none.fl_str_mv García, María Victoria
Balatti, Pedro Alberto
Arturi, Miguel Jacinto
author García, María Victoria
author_facet García, María Victoria
Balatti, Pedro Alberto
Arturi, Miguel Jacinto
author_role author
author2 Balatti, Pedro Alberto
Arturi, Miguel Jacinto
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Apomictic grass
Natural variation
Dallisgrass
Paspalum dilatatum
Pentaploid biotype
Tetraploid biotype
topic Ciencias Agrarias
Apomictic grass
Natural variation
Dallisgrass
Paspalum dilatatum
Pentaploid biotype
Tetraploid biotype
dc.description.none.fl_txt_mv Native species show adaptive traits that are difficult to find in introduced species. The Pampas region in Argentina is a valuable nature reserve of grasses and <i>Paspalum dilatatum</i> Poir. is one of the most important grasses found there. Based on ploidy level and on morphological traits, five biotypes of <i>P. dilatatum</i> have been described. Two of them were included in this study: a tetraploid biotype with sexual reproduction and a pentaploid biotype with apomictic reproduction. We analyzed the genetic diversity in eight native populations from the Salado basin, Argentina, using both quantitative traits and molecular data (RAPD) with these aims: to obtain information of the degree of phenotypic variation in that area, to know which the pattern of distribution of this variation is and to look for association between molecular markers with populational or biotypic differentiation. Cluster analysis based on morphological data grouped the individuals of the different populations by ploidy level. Molecular markers showed the inverse situation because individuals were grouped by geographic origin as opposed to biotype. Moreover, since RAPD did not discriminate between biotypes with sexual or apomictic reproduction, they are probably not associated with mating system. The results let us conclude that polygenic traits such as LP, LBSR, NRT and NSP can discriminate between biotypes and molecular markers such as bands 12, 40, 19 and 46 can be used to discriminate among populations, probably because they detect neutral variation.
Facultad de Ciencias Agrarias y Forestales
description Native species show adaptive traits that are difficult to find in introduced species. The Pampas region in Argentina is a valuable nature reserve of grasses and <i>Paspalum dilatatum</i> Poir. is one of the most important grasses found there. Based on ploidy level and on morphological traits, five biotypes of <i>P. dilatatum</i> have been described. Two of them were included in this study: a tetraploid biotype with sexual reproduction and a pentaploid biotype with apomictic reproduction. We analyzed the genetic diversity in eight native populations from the Salado basin, Argentina, using both quantitative traits and molecular data (RAPD) with these aims: to obtain information of the degree of phenotypic variation in that area, to know which the pattern of distribution of this variation is and to look for association between molecular markers with populational or biotypic differentiation. Cluster analysis based on morphological data grouped the individuals of the different populations by ploidy level. Molecular markers showed the inverse situation because individuals were grouped by geographic origin as opposed to biotype. Moreover, since RAPD did not discriminate between biotypes with sexual or apomictic reproduction, they are probably not associated with mating system. The results let us conclude that polygenic traits such as LP, LBSR, NRT and NSP can discriminate between biotypes and molecular markers such as bands 12, 40, 19 and 46 can be used to discriminate among populations, probably because they detect neutral variation.
publishDate 2007
dc.date.none.fl_str_mv 2007-08
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info:eu-repo/semantics/publishedVersion
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info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/130747
url http://sedici.unlp.edu.ar/handle/10915/130747
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0925-9864
info:eu-repo/semantics/altIdentifier/issn/1573-5109
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10722-006-9147-8
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)
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935-946
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