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

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 si...

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Autores principales: Moreno, María Virginia, Stenglein, Sebastián Alberto, Perelló, Analía Edith
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Agrarias
Triticum aestivum
Pyrenophora tritici-repentis
Tan spot
Races
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/132550
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-132550
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Triticum aestivum
Pyrenophora tritici-repentis
Tan spot
Races
spellingShingle Ciencias Agrarias
Triticum aestivum
Pyrenophora tritici-repentis
Tan spot
Races
Moreno, María Virginia
Stenglein, Sebastián Alberto
Perelló, Analía Edith
Distribution of races and <i>Tox</i> genes in <i>Pyrenophora tritici-repentis</i> isolates from wheat in Argentina
topic_facet Ciencias Agrarias
Triticum aestivum
Pyrenophora tritici-repentis
Tan spot
Races
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.
format Articulo
Articulo
author Moreno, María Virginia
Stenglein, Sebastián Alberto
Perelló, Analía Edith
author_facet Moreno, María Virginia
Stenglein, Sebastián Alberto
Perelló, Analía Edith
author_sort Moreno, María Virginia
title Distribution of races and <i>Tox</i> genes in <i>Pyrenophora tritici-repentis</i> isolates from wheat in Argentina
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
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/132550
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AT stengleinsebastianalberto distributionofracesanditoxigenesinipyrenophoratriticirepentisiisolatesfromwheatinargentina
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