Short communication: Emergence of a new race of leaf rust with combined virulence to Lr14a and Lr72 genes on durum wheat

Leaf rust is a foliar disease caused by the fungus Puccinia triticina that may severely reduce durum wheat yield. Resistance to this pathogen is common in modern durum germplasm but is frequently based on Lr72 and Lr14a. After accounts of races with virulence to Lr14a gene in France in 2000, the pre...

Descripción completa

Detalles Bibliográficos
Autores: Soleiman, Nour H., Solis, Ignacio, Soliman, Mahmoud H., Sillero, Josefa C., Villegas, Dolors, Alvaro, Fanny, Royo, Conxita, SERRA GIRONELLA, JOAN, Ammar, Karim, Martinez-Moreno, Fernando
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Institut de Recerca i Tecnologia Agroalimentàries (IRTA)
Repositorio:IRTA Pubpro. Open Digital Archive
OAI Identifier:oai:repositori.irta.cat:20.500.12327/1870
Acceso en línea:http://hdl.handle.net/20.500.12327/1870
https://doi.org/10.5424/sjar/2016143-9184
Access Level:acceso abierto
Palabra clave:633
id ES_960d442df22e093e51448a2ee7b05a2d
oai_identifier_str oai:repositori.irta.cat:20.500.12327/1870
network_acronym_str ES
network_name_str España
repository_id_str
spelling Short communication: Emergence of a new race of leaf rust with combined virulence to Lr14a and Lr72 genes on durum wheatSoleiman, Nour H.Solis, IgnacioSoliman, Mahmoud H.Sillero, Josefa C.Villegas, DolorsAlvaro, FannyRoyo, ConxitaSERRA GIRONELLA, JOANAmmar, KarimMartinez-Moreno, Fernando633Leaf rust is a foliar disease caused by the fungus Puccinia triticina that may severely reduce durum wheat yield. Resistance to this pathogen is common in modern durum germplasm but is frequently based on Lr72 and Lr14a. After accounts of races with virulence to Lr14a gene in France in 2000, the present study reports the detection in 2013 for the first time of a new race with virulence to Lr14a and Lr72. The aim of this work was to characterize the virulence pattern of four Spanish isolates with virulence to Lr14a, and to discuss the consequences of this presence. Rusted leaves from cultivars ‘Don Jaime’ (Lr14a) and ‘Gallareta’ (Lr72) were collected in 2013 in the field at two Spanish sites, one in the south (near Cadiz) and another in the north (near Girona). Spores from single pustule for each cultivar and site were multiplied on susceptible cultivar ‘Don Rafael’. Then, the four isolates were inoculated on a set of 19 isogenic lines Thatcher to characterize their virulence spectrum. All isolates presented the same virulence pattern. They were virulent on both Lr14a and Lr72 and the race was named DBB/BS. This race was very similar to those reported in 2009-11, but with added virulence to Lr14a. The resistance based on Lr14a has therefore been overcome in Spain, by a new race that has likely emerged via stepwise mutation from the local predominating races. This information is important to guide breeders in their breeding programmes and gene deployment strategies.info:eu-repo/semantics/publishedVersionInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)Producció VegetalCultius Extensius Sostenibles202220222016info:eu-repo/semantics/article4application/pdfhttp://hdl.handle.net/20.500.12327/1870https://doi.org/10.5424/sjar/2016143-9184reponame:IRTA Pubpro. Open Digital Archiveinstname:Institut de Recerca i Tecnologia Agroalimentàries (IRTA)InglésSpanish Journal of Agricultural ResearchAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositori.irta.cat:20.500.12327/18702026-06-16T08:51:17Z
dc.title.none.fl_str_mv Short communication: Emergence of a new race of leaf rust with combined virulence to Lr14a and Lr72 genes on durum wheat
title Short communication: Emergence of a new race of leaf rust with combined virulence to Lr14a and Lr72 genes on durum wheat
spellingShingle Short communication: Emergence of a new race of leaf rust with combined virulence to Lr14a and Lr72 genes on durum wheat
Soleiman, Nour H.
633
title_short Short communication: Emergence of a new race of leaf rust with combined virulence to Lr14a and Lr72 genes on durum wheat
title_full Short communication: Emergence of a new race of leaf rust with combined virulence to Lr14a and Lr72 genes on durum wheat
title_fullStr Short communication: Emergence of a new race of leaf rust with combined virulence to Lr14a and Lr72 genes on durum wheat
title_full_unstemmed Short communication: Emergence of a new race of leaf rust with combined virulence to Lr14a and Lr72 genes on durum wheat
title_sort Short communication: Emergence of a new race of leaf rust with combined virulence to Lr14a and Lr72 genes on durum wheat
dc.creator.none.fl_str_mv Soleiman, Nour H.
Solis, Ignacio
Soliman, Mahmoud H.
Sillero, Josefa C.
Villegas, Dolors
Alvaro, Fanny
Royo, Conxita
SERRA GIRONELLA, JOAN
Ammar, Karim
Martinez-Moreno, Fernando
author Soleiman, Nour H.
author_facet Soleiman, Nour H.
Solis, Ignacio
Soliman, Mahmoud H.
Sillero, Josefa C.
Villegas, Dolors
Alvaro, Fanny
Royo, Conxita
SERRA GIRONELLA, JOAN
Ammar, Karim
Martinez-Moreno, Fernando
author_role author
author2 Solis, Ignacio
Soliman, Mahmoud H.
Sillero, Josefa C.
Villegas, Dolors
Alvaro, Fanny
Royo, Conxita
SERRA GIRONELLA, JOAN
Ammar, Karim
Martinez-Moreno, Fernando
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Producció Vegetal
Cultius Extensius Sostenibles
dc.subject.none.fl_str_mv 633
topic 633
description Leaf rust is a foliar disease caused by the fungus Puccinia triticina that may severely reduce durum wheat yield. Resistance to this pathogen is common in modern durum germplasm but is frequently based on Lr72 and Lr14a. After accounts of races with virulence to Lr14a gene in France in 2000, the present study reports the detection in 2013 for the first time of a new race with virulence to Lr14a and Lr72. The aim of this work was to characterize the virulence pattern of four Spanish isolates with virulence to Lr14a, and to discuss the consequences of this presence. Rusted leaves from cultivars ‘Don Jaime’ (Lr14a) and ‘Gallareta’ (Lr72) were collected in 2013 in the field at two Spanish sites, one in the south (near Cadiz) and another in the north (near Girona). Spores from single pustule for each cultivar and site were multiplied on susceptible cultivar ‘Don Rafael’. Then, the four isolates were inoculated on a set of 19 isogenic lines Thatcher to characterize their virulence spectrum. All isolates presented the same virulence pattern. They were virulent on both Lr14a and Lr72 and the race was named DBB/BS. This race was very similar to those reported in 2009-11, but with added virulence to Lr14a. The resistance based on Lr14a has therefore been overcome in Spain, by a new race that has likely emerged via stepwise mutation from the local predominating races. This information is important to guide breeders in their breeding programmes and gene deployment strategies.
publishDate 2016
dc.date.none.fl_str_mv 2016
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12327/1870
https://doi.org/10.5424/sjar/2016143-9184
url http://hdl.handle.net/20.500.12327/1870
https://doi.org/10.5424/sjar/2016143-9184
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Spanish Journal of Agricultural Research
dc.rights.none.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 4
application/pdf
dc.publisher.none.fl_str_mv Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)
publisher.none.fl_str_mv Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)
dc.source.none.fl_str_mv reponame:IRTA Pubpro. Open Digital Archive
instname:Institut de Recerca i Tecnologia Agroalimentàries (IRTA)
instname_str Institut de Recerca i Tecnologia Agroalimentàries (IRTA)
reponame_str IRTA Pubpro. Open Digital Archive
collection IRTA Pubpro. Open Digital Archive
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869413903489826816
score 15,301603

Similares en LA Referencia