Distribution of races and <i>Tox</i> genes in <i>Pyrenophora tritici-repentis</i> isolates from wheat in Argentina

Autores
Moreno, María Virginia; Stenglein, Sebastián Alberto; Perelló, Analía Edith
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Tan spot, caused by Pyrenophora tritici-repentis, is a common disease in wheat-growing regions of Argentina. In this study 65 isolates of P. tritici-repentis obtained from different cultivars and wheat regions of Argentina were assessed for their virulence on six wheat cultivars/lines (Glenlea, Salomouni, Katepwa, M-3, 6B365 and 6B662) and for the presence/absence of the Tox genes based on a PCR approach. Thirty-six isolates were assigned to races, of which races 4 and 8 were dominant. Results for molecular analysis of ToxA, ToxB, ToxB-like and toxb genes showed that 57 isolates possessed the ToxA gene whereas only one isolate possessed ToxA and ToxB genes. There was no correlation between races and the toxin genotypes. It is suggested that P. tritici-repentis exhibits a complex race structure in Argentina.
Facultad de Ciencias Agrarias y Forestales
Centro de Investigaciones en Fitopatología
Materia
Ciencias Agrarias
Triticum aestivum
Pyrenophora tritici-repentis
Tan spot
Races
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:10915/132550
Acceder
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network_name_str SEDICI (UNLP)
spelling Distribution of races and <i>Tox</i> genes in <i>Pyrenophora tritici-repentis</i> isolates from wheat in ArgentinaMoreno, María VirginiaStenglein, Sebastián AlbertoPerelló, Analía EdithCiencias AgrariasTriticum aestivumPyrenophora tritici-repentisTan spotRacesTan spot, caused by <i>Pyrenophora tritici-repentis</i>, is a common disease in wheat-growing regions of Argentina. In this study 65 isolates of <i>P. tritici-repentis</i> obtained from different cultivars and wheat regions of Argentina were assessed for their virulence on six wheat cultivars/lines (Glenlea, Salomouni, Katepwa, M-3, 6B365 and 6B662) and for the presence/absence of the <i>Tox</i> genes based on a PCR approach. Thirty-six isolates were assigned to races, of which races 4 and 8 were dominant. Results for molecular analysis of <i>ToxA</i>, <i>ToxB</i>, <i>ToxB</i>-like and <i>toxb</i> genes showed that 57 isolates possessed the <i>ToxA</i> gene whereas only one isolate possessed <i>ToxA</i> and <i>ToxB</i> genes. There was no correlation between races and the toxin genotypes. It is suggested that <i>P. tritici-repentis</i> exhibits a complex race structure in Argentina.Facultad de Ciencias Agrarias y ForestalesCentro de Investigaciones en Fitopatología2015-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf141-146http://sedici.unlp.edu.ar/handle/10915/132550enginfo:eu-repo/semantics/altIdentifier/issn/1983-2052info:eu-repo/semantics/altIdentifier/issn/1982-5676info:eu-repo/semantics/altIdentifier/doi/10.1007/s40858-015-0011-2info: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:UNLP2025-09-03T11:04:33Zoai:sedici.unlp.edu.ar:10915/132550Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:04:33.552SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Distribution of races and <i>Tox</i> genes in <i>Pyrenophora tritici-repentis</i> isolates from wheat in Argentina
title Distribution of races and <i>Tox</i> genes in <i>Pyrenophora tritici-repentis</i> isolates from wheat in Argentina
spellingShingle Distribution of races and <i>Tox</i> genes in <i>Pyrenophora tritici-repentis</i> isolates from wheat in Argentina
Moreno, María Virginia
Ciencias Agrarias
Triticum aestivum
Pyrenophora tritici-repentis
Tan spot
Races
title_short Distribution of races and <i>Tox</i> genes in <i>Pyrenophora tritici-repentis</i> isolates from wheat in Argentina
title_full Distribution of races and <i>Tox</i> genes in <i>Pyrenophora tritici-repentis</i> isolates from wheat in Argentina
title_fullStr Distribution of races and <i>Tox</i> genes in <i>Pyrenophora tritici-repentis</i> isolates from wheat in Argentina
title_full_unstemmed Distribution of races and <i>Tox</i> genes in <i>Pyrenophora tritici-repentis</i> isolates from wheat in Argentina
title_sort Distribution of races and <i>Tox</i> genes in <i>Pyrenophora tritici-repentis</i> isolates from wheat in Argentina
dc.creator.none.fl_str_mv Moreno, María Virginia
Stenglein, Sebastián Alberto
Perelló, Analía Edith
author Moreno, María Virginia
author_facet Moreno, María Virginia
Stenglein, Sebastián Alberto
Perelló, Analía Edith
author_role author
author2 Stenglein, Sebastián Alberto
Perelló, Analía Edith
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Triticum aestivum
Pyrenophora tritici-repentis
Tan spot
Races
topic Ciencias Agrarias
Triticum aestivum
Pyrenophora tritici-repentis
Tan spot
Races
dc.description.none.fl_txt_mv Tan spot, caused by <i>Pyrenophora tritici-repentis</i>, is a common disease in wheat-growing regions of Argentina. In this study 65 isolates of <i>P. tritici-repentis</i> obtained from different cultivars and wheat regions of Argentina were assessed for their virulence on six wheat cultivars/lines (Glenlea, Salomouni, Katepwa, M-3, 6B365 and 6B662) and for the presence/absence of the <i>Tox</i> genes based on a PCR approach. Thirty-six isolates were assigned to races, of which races 4 and 8 were dominant. Results for molecular analysis of <i>ToxA</i>, <i>ToxB</i>, <i>ToxB</i>-like and <i>toxb</i> genes showed that 57 isolates possessed the <i>ToxA</i> gene whereas only one isolate possessed <i>ToxA</i> and <i>ToxB</i> genes. There was no correlation between races and the toxin genotypes. It is suggested that <i>P. tritici-repentis</i> exhibits a complex race structure in Argentina.
Facultad de Ciencias Agrarias y Forestales
Centro de Investigaciones en Fitopatología
description Tan spot, caused by <i>Pyrenophora tritici-repentis</i>, is a common disease in wheat-growing regions of Argentina. In this study 65 isolates of <i>P. tritici-repentis</i> obtained from different cultivars and wheat regions of Argentina were assessed for their virulence on six wheat cultivars/lines (Glenlea, Salomouni, Katepwa, M-3, 6B365 and 6B662) and for the presence/absence of the <i>Tox</i> genes based on a PCR approach. Thirty-six isolates were assigned to races, of which races 4 and 8 were dominant. Results for molecular analysis of <i>ToxA</i>, <i>ToxB</i>, <i>ToxB</i>-like and <i>toxb</i> genes showed that 57 isolates possessed the <i>ToxA</i> gene whereas only one isolate possessed <i>ToxA</i> and <i>ToxB</i> genes. There was no correlation between races and the toxin genotypes. It is suggested that <i>P. tritici-repentis</i> exhibits a complex race structure in Argentina.
publishDate 2015
dc.date.none.fl_str_mv 2015-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
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/10915/132550
url http://sedici.unlp.edu.ar/handle/10915/132550
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1983-2052
info:eu-repo/semantics/altIdentifier/issn/1982-5676
info:eu-repo/semantics/altIdentifier/doi/10.1007/s40858-015-0011-2
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
141-146
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instname_str Universidad Nacional de La Plata
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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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