Resistance to Multiple Temperate and Tropical Stem and Sheath Diseases of Rice
Stem rot and aggregated sheath spot are the two major stem and sheath diseases affecting rice (Oryza sativa L.) in temperate areas. A third fungal disease, sheath blight, is a major disease in tropical areas. Resistance to these diseases is a key objective in rice breeding programs but phenotyping i...
| Autores principales: | , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2018
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/91962 |
| _version_ | 1855521082697580544 |
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| author | Rosas, Juan E. Martínez, Sebastián Blanco, Pedro Pérez de Vida, Fernando B. Bonnecarrère, Victoria Mosquera Cifuentes, Gloria Maria Cruz Gallego, Maribel Garaycochea, Silvia Monteverde, Eliana McCouch, Susan Germán, Silvia Jannink, Jean-Luc Gutiérrez, Lucía |
| author_browse | Blanco, Pedro Bonnecarrère, Victoria Cruz Gallego, Maribel Garaycochea, Silvia Germán, Silvia Gutiérrez, Lucía Jannink, Jean-Luc Martínez, Sebastián McCouch, Susan Monteverde, Eliana Mosquera Cifuentes, Gloria Maria Pérez de Vida, Fernando B. Rosas, Juan E. |
| author_facet | Rosas, Juan E. Martínez, Sebastián Blanco, Pedro Pérez de Vida, Fernando B. Bonnecarrère, Victoria Mosquera Cifuentes, Gloria Maria Cruz Gallego, Maribel Garaycochea, Silvia Monteverde, Eliana McCouch, Susan Germán, Silvia Jannink, Jean-Luc Gutiérrez, Lucía |
| author_sort | Rosas, Juan E. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Stem rot and aggregated sheath spot are the two major stem and sheath diseases affecting rice (Oryza sativa L.) in temperate areas. A third fungal disease, sheath blight, is a major disease in tropical areas. Resistance to these diseases is a key objective in rice breeding programs but phenotyping is challenged by the confounding effects of phenological and morphological traits such as flowering time (FT) and plant height (PH). This study sought to identify quantitative trait loci (QTL) for resistance to these three diseases after removing the confounding effects of FT and PH. Two populations of advanced breeding germplasm, one with 316 tropical japonica and the other with 325 indica genotypes, were evaluated in field and greenhouse trials for resistance to the diseases. Phenotypic means for field and greenhouse disease resistance, adjusted by FT and PH, were analyzed for associations with 29,000 single nucleotide polymorphisms (SNPs) in tropical japonica and 50,000 SNPs in indica. A total of 29 QTL were found for resistance that were not associated with FT or PH. Multilocus models with selected resistance-associated SNPs were fitted for each disease to estimate their effects on the other diseases. A QTL on chromosome 9 accounted for more than 15% of the phenotypic variance for the three diseases. When resistance-associated SNPs at this locus from both the tropical japonica and indica populations were incorporated into the model, resistance was improved for all three diseases with little impact on FT and PH. |
| format | Journal Article |
| id | CGSpace91962 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace919622025-03-13T09:44:06Z Resistance to Multiple Temperate and Tropical Stem and Sheath Diseases of Rice Rosas, Juan E. Martínez, Sebastián Blanco, Pedro Pérez de Vida, Fernando B. Bonnecarrère, Victoria Mosquera Cifuentes, Gloria Maria Cruz Gallego, Maribel Garaycochea, Silvia Monteverde, Eliana McCouch, Susan Germán, Silvia Jannink, Jean-Luc Gutiérrez, Lucía orysa sativa l. yield rendimiento arroz rice plant diseases fungal diseases enfermedades fungosas quantitative trait loci loci de rasgos cuantitativos disease resistance resistencia a la enfermedad Stem rot and aggregated sheath spot are the two major stem and sheath diseases affecting rice (Oryza sativa L.) in temperate areas. A third fungal disease, sheath blight, is a major disease in tropical areas. Resistance to these diseases is a key objective in rice breeding programs but phenotyping is challenged by the confounding effects of phenological and morphological traits such as flowering time (FT) and plant height (PH). This study sought to identify quantitative trait loci (QTL) for resistance to these three diseases after removing the confounding effects of FT and PH. Two populations of advanced breeding germplasm, one with 316 tropical japonica and the other with 325 indica genotypes, were evaluated in field and greenhouse trials for resistance to the diseases. Phenotypic means for field and greenhouse disease resistance, adjusted by FT and PH, were analyzed for associations with 29,000 single nucleotide polymorphisms (SNPs) in tropical japonica and 50,000 SNPs in indica. A total of 29 QTL were found for resistance that were not associated with FT or PH. Multilocus models with selected resistance-associated SNPs were fitted for each disease to estimate their effects on the other diseases. A QTL on chromosome 9 accounted for more than 15% of the phenotypic variance for the three diseases. When resistance-associated SNPs at this locus from both the tropical japonica and indica populations were incorporated into the model, resistance was improved for all three diseases with little impact on FT and PH. 2018-03 2018-03-27T21:09:24Z 2018-03-27T21:09:24Z Journal Article https://hdl.handle.net/10568/91962 en Open Access Wiley Rosas, J. E., Martínez, S., Blanco, P., Pérez de Vida, F., Bonnecarrère, V., Mosquera, G., Cruz, M., Garaycochea, S., Monteverde, E., McCouch, S., Germán, S., Jannink, J.-L. and Gutiérrez, L. (2018) Resistance to Multiple Temperate and Tropical Stem and Sheath Diseases of Rice, Plant Genome, 11(1), p. 1-13 . |
| spellingShingle | orysa sativa l. yield rendimiento arroz rice plant diseases fungal diseases enfermedades fungosas quantitative trait loci loci de rasgos cuantitativos disease resistance resistencia a la enfermedad Rosas, Juan E. Martínez, Sebastián Blanco, Pedro Pérez de Vida, Fernando B. Bonnecarrère, Victoria Mosquera Cifuentes, Gloria Maria Cruz Gallego, Maribel Garaycochea, Silvia Monteverde, Eliana McCouch, Susan Germán, Silvia Jannink, Jean-Luc Gutiérrez, Lucía Resistance to Multiple Temperate and Tropical Stem and Sheath Diseases of Rice |
| title | Resistance to Multiple Temperate and Tropical Stem and Sheath Diseases of Rice |
| title_full | Resistance to Multiple Temperate and Tropical Stem and Sheath Diseases of Rice |
| title_fullStr | Resistance to Multiple Temperate and Tropical Stem and Sheath Diseases of Rice |
| title_full_unstemmed | Resistance to Multiple Temperate and Tropical Stem and Sheath Diseases of Rice |
| title_short | Resistance to Multiple Temperate and Tropical Stem and Sheath Diseases of Rice |
| title_sort | resistance to multiple temperate and tropical stem and sheath diseases of rice |
| topic | orysa sativa l. yield rendimiento arroz rice plant diseases fungal diseases enfermedades fungosas quantitative trait loci loci de rasgos cuantitativos disease resistance resistencia a la enfermedad |
| url | https://hdl.handle.net/10568/91962 |
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