Mating-type distribution and fertility status in Magnaporthe grisea populations from Argentina

Isolates of Magnaporthe grisea causing gray leaf spot on rice were collected in Argentina and analyzed for mating distribution and fertility. One hundred and twenty-five isolates of M. grisea were collected from rice plants between 2000 and 2003. Each isolate was tested for mating type through a pol...

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Detalles Bibliográficos
Autores principales: Consolo, Verónica Fabiana, Cordo, Cristina Alicia, Salerno, Graciela Lidia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2005
Materias:
Biología
Ciencias Agrarias
Magnaporthe grisea
mating type
perithecia
rice
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/139720
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-139720
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Ciencias Agrarias
Magnaporthe grisea
mating type
perithecia
rice
spellingShingle Biología
Ciencias Agrarias
Magnaporthe grisea
mating type
perithecia
rice
Consolo, Verónica Fabiana
Cordo, Cristina Alicia
Salerno, Graciela Lidia
Mating-type distribution and fertility status in Magnaporthe grisea populations from Argentina
topic_facet Biología
Ciencias Agrarias
Magnaporthe grisea
mating type
perithecia
rice
description Isolates of Magnaporthe grisea causing gray leaf spot on rice were collected in Argentina and analyzed for mating distribution and fertility. One hundred and twenty-five isolates of M. grisea were collected from rice plants between 2000 and 2003. Each isolate was tested for mating type through a polymerase chain reaction based assay. All M. grisea isolates from Argentina belonged to a single mating type, MAT1.1. The fertility status of isolates was determined using controlled crosses in vitro, pairing each isolate with GUY11 and KA9 (MAT1.2 standard hermaphroditic testers). Production of perithecia was scarce among isolates of the blast pathogen since a low percentage of them (7.2%) developed perithecia with only one of the fertile tester (KA9); all crosses failed with the other tester strain. Asci and ascospores were not observed. The presence of only one mating type and the absence of female fertile isolates indicate that sexual reproduction is rare or absent in M. grisea populations associated with rice in Argentina.
format Articulo
Articulo
author Consolo, Verónica Fabiana
Cordo, Cristina Alicia
Salerno, Graciela Lidia
author_facet Consolo, Verónica Fabiana
Cordo, Cristina Alicia
Salerno, Graciela Lidia
author_sort Consolo, Verónica Fabiana
title Mating-type distribution and fertility status in Magnaporthe grisea populations from Argentina
title_short Mating-type distribution and fertility status in Magnaporthe grisea populations from Argentina
title_full Mating-type distribution and fertility status in Magnaporthe grisea populations from Argentina
title_fullStr Mating-type distribution and fertility status in Magnaporthe grisea populations from Argentina
title_full_unstemmed Mating-type distribution and fertility status in Magnaporthe grisea populations from Argentina
title_sort mating-type distribution and fertility status in magnaporthe grisea populations from argentina
publishDate 2005
url http://sedici.unlp.edu.ar/handle/10915/139720
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