Genetic diversity of pathogenic and nonpathogenic populations of Fusarium oxysporum isolated from carnation fields in Argentina

Autores
Lori, Gladys Albina; Edel-Hermann, Véronique; Gautheron, Nadine; Alabouvette, Claude
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In order to elucidate the origin of Fusarium oxysporum f. sp. dianthi in Argentina, the genetic diversity among pathogenic isolates together with co-occurring nonpathogenic isolates on carnation was investigated. In all, 151 isolates of F. oxysporum were obtained from soils and carnation plants from several horticultural farms in Argentina. The isolates were characterized using vegetative compatibility group (VCG), intergenic spacer (IGS) typing, and pathogenicity tests on carnation. Seven reference strains of F. oxysporum f. sp. dianthi also were analyzed and assigned to six different IGS types and six VCGs. Twenty-two Argentinean isolates were pathogenic on carnation, had the same IGS type (50), and belonged to a single VCG (0021). The 129 remaining isolates were nonpathogenic on carnation and sorted into 23 IGS types and 97 VCGs. The same VCG never occurred in different IGS types. Our results suggest that the pathogen did not originate in the local populations of F. oxysporum but, rather, that it was introduced into Argentina. Given the genetic homogeneity within Argentinean isolates of F. oxysporum f. sp. dianthi, either IGS type or VCG can be used for the identification of the forma specialis dianthi currently in Argentina.
Centro de Investigaciones de Fitopatología
Materia
Ciencias Agrarias
Fusarium
genetic diversity
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:10915/83358
Acceder
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network_name_str SEDICI (UNLP)
spelling Genetic diversity of pathogenic and nonpathogenic populations of Fusarium oxysporum isolated from carnation fields in ArgentinaLori, Gladys AlbinaEdel-Hermann, VéroniqueGautheron, NadineAlabouvette, ClaudeCiencias AgrariasFusariumgenetic diversityIn order to elucidate the origin of Fusarium oxysporum f. sp. dianthi in Argentina, the genetic diversity among pathogenic isolates together with co-occurring nonpathogenic isolates on carnation was investigated. In all, 151 isolates of F. oxysporum were obtained from soils and carnation plants from several horticultural farms in Argentina. The isolates were characterized using vegetative compatibility group (VCG), intergenic spacer (IGS) typing, and pathogenicity tests on carnation. Seven reference strains of F. oxysporum f. sp. dianthi also were analyzed and assigned to six different IGS types and six VCGs. Twenty-two Argentinean isolates were pathogenic on carnation, had the same IGS type (50), and belonged to a single VCG (0021). The 129 remaining isolates were nonpathogenic on carnation and sorted into 23 IGS types and 97 VCGs. The same VCG never occurred in different IGS types. Our results suggest that the pathogen did not originate in the local populations of F. oxysporum but, rather, that it was introduced into Argentina. Given the genetic homogeneity within Argentinean isolates of F. oxysporum f. sp. dianthi, either IGS type or VCG can be used for the identification of the forma specialis dianthi currently in Argentina.Centro de Investigaciones de Fitopatología2004info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf661-668http://sedici.unlp.edu.ar/handle/10915/83358enginfo:eu-repo/semantics/altIdentifier/issn/0031-949Xinfo:eu-repo/semantics/altIdentifier/doi/10.1094/PHYTO.2004.94.6.661info: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:UNLP2025-10-29T15:20:54Zoai:sedici.unlp.edu.ar:10915/83358Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-29 15:20:54.618SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Genetic diversity of pathogenic and nonpathogenic populations of Fusarium oxysporum isolated from carnation fields in Argentina
title Genetic diversity of pathogenic and nonpathogenic populations of Fusarium oxysporum isolated from carnation fields in Argentina
spellingShingle Genetic diversity of pathogenic and nonpathogenic populations of Fusarium oxysporum isolated from carnation fields in Argentina
Lori, Gladys Albina
Ciencias Agrarias
Fusarium
genetic diversity
title_short Genetic diversity of pathogenic and nonpathogenic populations of Fusarium oxysporum isolated from carnation fields in Argentina
title_full Genetic diversity of pathogenic and nonpathogenic populations of Fusarium oxysporum isolated from carnation fields in Argentina
title_fullStr Genetic diversity of pathogenic and nonpathogenic populations of Fusarium oxysporum isolated from carnation fields in Argentina
title_full_unstemmed Genetic diversity of pathogenic and nonpathogenic populations of Fusarium oxysporum isolated from carnation fields in Argentina
title_sort Genetic diversity of pathogenic and nonpathogenic populations of Fusarium oxysporum isolated from carnation fields in Argentina
dc.creator.none.fl_str_mv Lori, Gladys Albina
Edel-Hermann, Véronique
Gautheron, Nadine
Alabouvette, Claude
author Lori, Gladys Albina
author_facet Lori, Gladys Albina
Edel-Hermann, Véronique
Gautheron, Nadine
Alabouvette, Claude
author_role author
author2 Edel-Hermann, Véronique
Gautheron, Nadine
Alabouvette, Claude
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Fusarium
genetic diversity
topic Ciencias Agrarias
Fusarium
genetic diversity
dc.description.none.fl_txt_mv In order to elucidate the origin of Fusarium oxysporum f. sp. dianthi in Argentina, the genetic diversity among pathogenic isolates together with co-occurring nonpathogenic isolates on carnation was investigated. In all, 151 isolates of F. oxysporum were obtained from soils and carnation plants from several horticultural farms in Argentina. The isolates were characterized using vegetative compatibility group (VCG), intergenic spacer (IGS) typing, and pathogenicity tests on carnation. Seven reference strains of F. oxysporum f. sp. dianthi also were analyzed and assigned to six different IGS types and six VCGs. Twenty-two Argentinean isolates were pathogenic on carnation, had the same IGS type (50), and belonged to a single VCG (0021). The 129 remaining isolates were nonpathogenic on carnation and sorted into 23 IGS types and 97 VCGs. The same VCG never occurred in different IGS types. Our results suggest that the pathogen did not originate in the local populations of F. oxysporum but, rather, that it was introduced into Argentina. Given the genetic homogeneity within Argentinean isolates of F. oxysporum f. sp. dianthi, either IGS type or VCG can be used for the identification of the forma specialis dianthi currently in Argentina.
Centro de Investigaciones de Fitopatología
description In order to elucidate the origin of Fusarium oxysporum f. sp. dianthi in Argentina, the genetic diversity among pathogenic isolates together with co-occurring nonpathogenic isolates on carnation was investigated. In all, 151 isolates of F. oxysporum were obtained from soils and carnation plants from several horticultural farms in Argentina. The isolates were characterized using vegetative compatibility group (VCG), intergenic spacer (IGS) typing, and pathogenicity tests on carnation. Seven reference strains of F. oxysporum f. sp. dianthi also were analyzed and assigned to six different IGS types and six VCGs. Twenty-two Argentinean isolates were pathogenic on carnation, had the same IGS type (50), and belonged to a single VCG (0021). The 129 remaining isolates were nonpathogenic on carnation and sorted into 23 IGS types and 97 VCGs. The same VCG never occurred in different IGS types. Our results suggest that the pathogen did not originate in the local populations of F. oxysporum but, rather, that it was introduced into Argentina. Given the genetic homogeneity within Argentinean isolates of F. oxysporum f. sp. dianthi, either IGS type or VCG can be used for the identification of the forma specialis dianthi currently in Argentina.
publishDate 2004
dc.date.none.fl_str_mv 2004
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info:eu-repo/semantics/publishedVersion
Articulo
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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/10915/83358
url http://sedici.unlp.edu.ar/handle/10915/83358
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0031-949X
info:eu-repo/semantics/altIdentifier/doi/10.1094/PHYTO.2004.94.6.661
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
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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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