Virulence characterization of Puccinia graminis f. sp. avenae in Argentina

Autores
Dietz, Juan Ignacio; Da Silva, Laura Victoria; Simón, María Rosa; Campos, Pablo Eduardo
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Oat stem rust, caused by Puccinia graminis f. sp. avenae Erikss and Henning (Pga), is a disease of considerable relevance on a global scale, recognized for its destructive capacity under favorable environmental conditions. The characterization of the Pga population provides valuable insights into size, diversity, and complexity, and allows the identification of race-specific genes potentially useful for breeding. This study documents for the first time the structure and complexity of Pga populations collected in different sites in Argentina between 2021–2023 and compares it with a population sampled in 2005. We identified 22 different races among the 70 isolates collected during the period, showing a high level of diversity in the population. Moreover, most of the races identified in 2021, and all the races identified in 2022 and 2023 were different from those found in 2005. We reported that current populations are more virulent and complex, and the predominant “race 11” demonstrated virulence against all 11 differential oat lines used in this study, emphasizing its potential threat to oat cultivation in Argentina. The change in population dynamics detected here suggests that the use of a few genes as a basis for resistance to stem rust in the Argentinian germplasm has resulted in the continuous selection of Pga phenotypes with virulence to these resistance genes. Additionally, our results demonstrated that the frequency of virulence of Pga isolates increased on most of the resistance genes compared to the 2005 population, and there are no genes potentially useful for breeding under Argentinian conditions. These findings underscore the pressing need to expand our search for new resistance genes and deepen our understanding of the genetic mechanisms governing resistance to stem rust in oats. Moreover, our research highlights the dynamic nature of plant-pathogen interactions, emphasizing the evolution of Pga populations and their interaction with Pga genes.
EEA Bordenave
Fil: Dietz, Juan Ignacio. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.
Fil: Dietz, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Dietz, Juan Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina.
Fil: Da Silva, Laura Victoria. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.
Fil: Da Silva, Laura Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Da Silva, Laura Victoria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina.
Fil: Simon, Maria Rosa. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.
Fil: Simon, Maria Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Campos, Pablo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina
Fuente
European Journal of Plant Pathology : 1-10. (Published: 27 January 2025)
Materia
Puccinia graminis
Roya del Tallo
Virulencia
Enfermedades de las Plantas
Argentina
Stem Rust
Virulence
Plant Diseases
Oats
Avenas
Puccinia graminis f. sp. avenae
Nivel de accesibilidad
acceso restringido
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
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oai_identifier_str oai:localhost:20.500.12123/21695
network_acronym_str INTADig
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network_name_str INTA Digital (INTA)
spelling Virulence characterization of Puccinia graminis f. sp. avenae in ArgentinaDietz, Juan IgnacioDa Silva, Laura VictoriaSimón, María RosaCampos, Pablo EduardoPuccinia graminisRoya del TalloVirulenciaEnfermedades de las PlantasArgentinaStem RustVirulencePlant DiseasesOatsAvenasPuccinia graminis f. sp. avenaeOat stem rust, caused by Puccinia graminis f. sp. avenae Erikss and Henning (Pga), is a disease of considerable relevance on a global scale, recognized for its destructive capacity under favorable environmental conditions. The characterization of the Pga population provides valuable insights into size, diversity, and complexity, and allows the identification of race-specific genes potentially useful for breeding. This study documents for the first time the structure and complexity of Pga populations collected in different sites in Argentina between 2021–2023 and compares it with a population sampled in 2005. We identified 22 different races among the 70 isolates collected during the period, showing a high level of diversity in the population. Moreover, most of the races identified in 2021, and all the races identified in 2022 and 2023 were different from those found in 2005. We reported that current populations are more virulent and complex, and the predominant “race 11” demonstrated virulence against all 11 differential oat lines used in this study, emphasizing its potential threat to oat cultivation in Argentina. The change in population dynamics detected here suggests that the use of a few genes as a basis for resistance to stem rust in the Argentinian germplasm has resulted in the continuous selection of Pga phenotypes with virulence to these resistance genes. Additionally, our results demonstrated that the frequency of virulence of Pga isolates increased on most of the resistance genes compared to the 2005 population, and there are no genes potentially useful for breeding under Argentinian conditions. These findings underscore the pressing need to expand our search for new resistance genes and deepen our understanding of the genetic mechanisms governing resistance to stem rust in oats. Moreover, our research highlights the dynamic nature of plant-pathogen interactions, emphasizing the evolution of Pga populations and their interaction with Pga genes.EEA BordenaveFil: Dietz, Juan Ignacio. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.Fil: Dietz, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Dietz, Juan Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina.Fil: Da Silva, Laura Victoria. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.Fil: Da Silva, Laura Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Da Silva, Laura Victoria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina.Fil: Simon, Maria Rosa. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.Fil: Simon, Maria Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Campos, Pablo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; ArgentinaSpringer2025-03-18T13:00:05Z2025-03-18T13:00:05Z2025-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/21695https://link.springer.com/article/10.1007/s10658-025-03004-50929-18731573-8469https://doi.org/10.1007/s10658-025-03004-5European Journal of Plant Pathology : 1-10. (Published: 27 January 2025)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología AgropecuariaengArgentina .......... (nation) (World, South America)7006477info:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-09-11T10:25:39Zoai:localhost:20.500.12123/21695instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-11 10:25:39.884INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Virulence characterization of Puccinia graminis f. sp. avenae in Argentina
title Virulence characterization of Puccinia graminis f. sp. avenae in Argentina
spellingShingle Virulence characterization of Puccinia graminis f. sp. avenae in Argentina
Dietz, Juan Ignacio
Puccinia graminis
Roya del Tallo
Virulencia
Enfermedades de las Plantas
Argentina
Stem Rust
Virulence
Plant Diseases
Oats
Avenas
Puccinia graminis f. sp. avenae
title_short Virulence characterization of Puccinia graminis f. sp. avenae in Argentina
title_full Virulence characterization of Puccinia graminis f. sp. avenae in Argentina
title_fullStr Virulence characterization of Puccinia graminis f. sp. avenae in Argentina
title_full_unstemmed Virulence characterization of Puccinia graminis f. sp. avenae in Argentina
title_sort Virulence characterization of Puccinia graminis f. sp. avenae in Argentina
dc.creator.none.fl_str_mv Dietz, Juan Ignacio
Da Silva, Laura Victoria
Simón, María Rosa
Campos, Pablo Eduardo
author Dietz, Juan Ignacio
author_facet Dietz, Juan Ignacio
Da Silva, Laura Victoria
Simón, María Rosa
Campos, Pablo Eduardo
author_role author
author2 Da Silva, Laura Victoria
Simón, María Rosa
Campos, Pablo Eduardo
author2_role author
author
author
dc.subject.none.fl_str_mv Puccinia graminis
Roya del Tallo
Virulencia
Enfermedades de las Plantas
Argentina
Stem Rust
Virulence
Plant Diseases
Oats
Avenas
Puccinia graminis f. sp. avenae
topic Puccinia graminis
Roya del Tallo
Virulencia
Enfermedades de las Plantas
Argentina
Stem Rust
Virulence
Plant Diseases
Oats
Avenas
Puccinia graminis f. sp. avenae
dc.description.none.fl_txt_mv Oat stem rust, caused by Puccinia graminis f. sp. avenae Erikss and Henning (Pga), is a disease of considerable relevance on a global scale, recognized for its destructive capacity under favorable environmental conditions. The characterization of the Pga population provides valuable insights into size, diversity, and complexity, and allows the identification of race-specific genes potentially useful for breeding. This study documents for the first time the structure and complexity of Pga populations collected in different sites in Argentina between 2021–2023 and compares it with a population sampled in 2005. We identified 22 different races among the 70 isolates collected during the period, showing a high level of diversity in the population. Moreover, most of the races identified in 2021, and all the races identified in 2022 and 2023 were different from those found in 2005. We reported that current populations are more virulent and complex, and the predominant “race 11” demonstrated virulence against all 11 differential oat lines used in this study, emphasizing its potential threat to oat cultivation in Argentina. The change in population dynamics detected here suggests that the use of a few genes as a basis for resistance to stem rust in the Argentinian germplasm has resulted in the continuous selection of Pga phenotypes with virulence to these resistance genes. Additionally, our results demonstrated that the frequency of virulence of Pga isolates increased on most of the resistance genes compared to the 2005 population, and there are no genes potentially useful for breeding under Argentinian conditions. These findings underscore the pressing need to expand our search for new resistance genes and deepen our understanding of the genetic mechanisms governing resistance to stem rust in oats. Moreover, our research highlights the dynamic nature of plant-pathogen interactions, emphasizing the evolution of Pga populations and their interaction with Pga genes.
EEA Bordenave
Fil: Dietz, Juan Ignacio. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.
Fil: Dietz, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Dietz, Juan Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina.
Fil: Da Silva, Laura Victoria. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.
Fil: Da Silva, Laura Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Da Silva, Laura Victoria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina.
Fil: Simon, Maria Rosa. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.
Fil: Simon, Maria Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Campos, Pablo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina
description Oat stem rust, caused by Puccinia graminis f. sp. avenae Erikss and Henning (Pga), is a disease of considerable relevance on a global scale, recognized for its destructive capacity under favorable environmental conditions. The characterization of the Pga population provides valuable insights into size, diversity, and complexity, and allows the identification of race-specific genes potentially useful for breeding. This study documents for the first time the structure and complexity of Pga populations collected in different sites in Argentina between 2021–2023 and compares it with a population sampled in 2005. We identified 22 different races among the 70 isolates collected during the period, showing a high level of diversity in the population. Moreover, most of the races identified in 2021, and all the races identified in 2022 and 2023 were different from those found in 2005. We reported that current populations are more virulent and complex, and the predominant “race 11” demonstrated virulence against all 11 differential oat lines used in this study, emphasizing its potential threat to oat cultivation in Argentina. The change in population dynamics detected here suggests that the use of a few genes as a basis for resistance to stem rust in the Argentinian germplasm has resulted in the continuous selection of Pga phenotypes with virulence to these resistance genes. Additionally, our results demonstrated that the frequency of virulence of Pga isolates increased on most of the resistance genes compared to the 2005 population, and there are no genes potentially useful for breeding under Argentinian conditions. These findings underscore the pressing need to expand our search for new resistance genes and deepen our understanding of the genetic mechanisms governing resistance to stem rust in oats. Moreover, our research highlights the dynamic nature of plant-pathogen interactions, emphasizing the evolution of Pga populations and their interaction with Pga genes.
publishDate 2025
dc.date.none.fl_str_mv 2025-03-18T13:00:05Z
2025-03-18T13:00:05Z
2025-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/21695
https://link.springer.com/article/10.1007/s10658-025-03004-5
0929-1873
1573-8469
https://doi.org/10.1007/s10658-025-03004-5
url http://hdl.handle.net/20.500.12123/21695
https://link.springer.com/article/10.1007/s10658-025-03004-5
https://doi.org/10.1007/s10658-025-03004-5
identifier_str_mv 0929-1873
1573-8469
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
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 restrictedAccess
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
dc.coverage.none.fl_str_mv Argentina .......... (nation) (World, South America)
7006477
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv European Journal of Plant Pathology : 1-10. (Published: 27 January 2025)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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