Virulence characterization and identification of maize lines resistant to Puccinia sorghi Schwein. Present in the argentine corn belt region
Puccinia sorghi Schwein., the causal agent of maize common rust, is an endemic disease in the Argentine Corn Belt region. Virulence surveys of the pathogen population within the region have not been performed; thus, the understanding of the pathogen population is low and it is difficult to deploy re...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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2017
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| Online Access: | http://hdl.handle.net/20.500.12123/990 http://apsjournals.apsnet.org/doi/10.1094/PDIS-06-15-0639-RE https://doi.org/10.1094/PDIS-06-15-0639-RE |
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| author | Darino, Martín Alejandro Rochi, Lucía Lia, Veronica Viviana Kreff, Enrique D. Pergolesi, María Fernanda Ingala, Lorena Romina Dieguez, Maria Jose Sacco, Francisco |
| author_browse | Darino, Martín Alejandro Dieguez, Maria Jose Ingala, Lorena Romina Kreff, Enrique D. Lia, Veronica Viviana Pergolesi, María Fernanda Rochi, Lucía Sacco, Francisco |
| author_facet | Darino, Martín Alejandro Rochi, Lucía Lia, Veronica Viviana Kreff, Enrique D. Pergolesi, María Fernanda Ingala, Lorena Romina Dieguez, Maria Jose Sacco, Francisco |
| author_sort | Darino, Martín Alejandro |
| collection | INTA Digital |
| description | Puccinia sorghi Schwein., the causal agent of maize common rust, is an endemic disease in the Argentine Corn Belt region. Virulence surveys of the pathogen population within the region have not been performed; thus, the understanding of the pathogen population is low and it is difficult to deploy resistance genes that could be effective at controlling the disease. In total, 58 single-uredinial isolates derived from infected maize leaves collected in different locations throughout the Argentine Corn Belt region during 2010 to 2012 were tested on a set of 25 maize lines carrying different Rp genes. Maize lines Rp3-A and PIO19802 showed the lowest virulence frequencies (3.4 and 1.7%, respectively) for all tested isolates. Moreover, the combination in a single genotype of the resistance genes carried by lines Rp3-A and PIO19802 or either of these lines combined with the resistance genes from PIO12345 would confer resistance to all isolates tested. Virulent isolates on maize lines Rp-G, Rp1-K, and Rp-GI were most frequent in 2012. Twenty-four virulence phenotypes were identified, with phenotypes TCCG (17.2%), TTBB (15.5%), and TCFG (10.3%) being the most common throughout the region. Adult plant resistance associated with hypersensitive response was identified at vegetative stage 6 in maize lines PIO68752, PIO28427, and PIO36420. |
| format | info:ar-repo/semantics/artículo |
| id | INTA990 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA9902018-02-26T12:19:42Z Virulence characterization and identification of maize lines resistant to Puccinia sorghi Schwein. Present in the argentine corn belt region Darino, Martín Alejandro Rochi, Lucía Lia, Veronica Viviana Kreff, Enrique D. Pergolesi, María Fernanda Ingala, Lorena Romina Dieguez, Maria Jose Sacco, Francisco Puccinia Sorghi Puccinia Striiformis Virulence Disease Resistance Virulencia Zea mays Resistencia a la Enfermedad Argentina Puccinia sorghi Schwein., the causal agent of maize common rust, is an endemic disease in the Argentine Corn Belt region. Virulence surveys of the pathogen population within the region have not been performed; thus, the understanding of the pathogen population is low and it is difficult to deploy resistance genes that could be effective at controlling the disease. In total, 58 single-uredinial isolates derived from infected maize leaves collected in different locations throughout the Argentine Corn Belt region during 2010 to 2012 were tested on a set of 25 maize lines carrying different Rp genes. Maize lines Rp3-A and PIO19802 showed the lowest virulence frequencies (3.4 and 1.7%, respectively) for all tested isolates. Moreover, the combination in a single genotype of the resistance genes carried by lines Rp3-A and PIO19802 or either of these lines combined with the resistance genes from PIO12345 would confer resistance to all isolates tested. Virulent isolates on maize lines Rp-G, Rp1-K, and Rp-GI were most frequent in 2012. Twenty-four virulence phenotypes were identified, with phenotypes TCCG (17.2%), TTBB (15.5%), and TCFG (10.3%) being the most common throughout the region. Adult plant resistance associated with hypersensitive response was identified at vegetative stage 6 in maize lines PIO68752, PIO28427, and PIO36420. Fil: Darino, Martín Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Rochi, Lucía. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Lia, Veronica Viviana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina Fil: Kreff, Enrique D. Pioneer Hi-Bred International; Argentina Fil: Pergolesi, María Fernanda. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Ingala, Lorena Romina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Dieguez, María José. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Sacco, Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina 2017-08-18T13:00:26Z 2017-08-18T13:00:26Z 2016-04 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/990 http://apsjournals.apsnet.org/doi/10.1094/PDIS-06-15-0639-RE 0191-2917 https://doi.org/10.1094/PDIS-06-15-0639-RE eng 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) application/pdf Argentina (nation) Plant disease 100 (4) : 770-776. (2016) |
| spellingShingle | Puccinia Sorghi Puccinia Striiformis Virulence Disease Resistance Virulencia Zea mays Resistencia a la Enfermedad Argentina Darino, Martín Alejandro Rochi, Lucía Lia, Veronica Viviana Kreff, Enrique D. Pergolesi, María Fernanda Ingala, Lorena Romina Dieguez, Maria Jose Sacco, Francisco Virulence characterization and identification of maize lines resistant to Puccinia sorghi Schwein. Present in the argentine corn belt region |
| title | Virulence characterization and identification of maize lines resistant to Puccinia sorghi Schwein. Present in the argentine corn belt region |
| title_full | Virulence characterization and identification of maize lines resistant to Puccinia sorghi Schwein. Present in the argentine corn belt region |
| title_fullStr | Virulence characterization and identification of maize lines resistant to Puccinia sorghi Schwein. Present in the argentine corn belt region |
| title_full_unstemmed | Virulence characterization and identification of maize lines resistant to Puccinia sorghi Schwein. Present in the argentine corn belt region |
| title_short | Virulence characterization and identification of maize lines resistant to Puccinia sorghi Schwein. Present in the argentine corn belt region |
| title_sort | virulence characterization and identification of maize lines resistant to puccinia sorghi schwein present in the argentine corn belt region |
| topic | Puccinia Sorghi Puccinia Striiformis Virulence Disease Resistance Virulencia Zea mays Resistencia a la Enfermedad Argentina |
| url | http://hdl.handle.net/20.500.12123/990 http://apsjournals.apsnet.org/doi/10.1094/PDIS-06-15-0639-RE https://doi.org/10.1094/PDIS-06-15-0639-RE |
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