Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivars
- Autores
- Cobo, Nicolás; Pfluger, Laura Alicia; Chen, Xianming; Dubcovsky, Jorge
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- During the last two decades, new virulent and aggressive races of Puccinia striiformis Westend. f. sp. tritici (Pst) have spread worldwide, causing devastating epidemics and prompting the search for new sources of resistance in wheat (Triticum aestivum L.). Between 2012 and 2017, we mapped four stripe rust resistance quantitative trait loci (QTL) effective against the Pst races present in California, USA, using recombinant inbred lines (RILs) developed from the cross between the Argentinean cultivars ‘Klein Proteo’ and ‘Klein Chajá’. The RIL population showed transgressive segregation in all six growing seasons relative to the parental lines, which showed moderate levels of Pst resistance. Analyses by year detected QTL conferring adult plant resistance on chromosomes 1BL, 2BS, 3D centromeric (from Klein Chajá), and 4DL (from Klein Proteo). QYr.ucw-1BL, mapped in the Yr29 resistance gene region, was significant in all seasons (P < 0.01) and explained on average 31.0 to 32.8% of the observed variation. QYr.ucw-2BS showed a stronger effect than QYr.ucw-1BL in 2013 but was ineffective in 2014 and 2016. This QTL also conferred seedling resistance, suggesting that it is an all-stage resistance gene. Centromeric QYr.ucw-3D and QYr.ucw-4DL showed smaller effects than the previous QTL and were significant only in some of the experiments. No significant interactions were detected among QTL, indicating the absence of digenic epistatic effects. The molecular markers identified in this study can be used to combine these genes and accelerate their deployment in wheat breeding programs.
Instituto de Recursos Biológicos
Fil: Cobo, Nicolás. University of California. Department of Plant Sciences; Estados Unidos. Howard Hughes Medical Institute; Estados Unidos
Fil: Pfluger, Laura Alicia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina
Fil: Chen, Xianming. Washington State Univ. Wheat Health, Genetics and Quality Research Unit. Department of Plant Pathology; Estados Unidos
Fil: Dubcovsky, Jorge. University of California. Department of Plant Sciences; Estados Unidos. Howard Hughes Medical Institute; Estados Unidos - Fuente
- Crop science 58 : 1-14. (November–december 2018)
- Materia
-
Wheat
Varieties
Plant Diseases
Rusts
Disease Resistance
Quantitative Trait Loci
Genetic Markers
Trigo
Variedades
Enfermedades de las Plantas
Roya
Resistencia a la Enfermedad
Loci de Rasgos Cuantitativos
Triticum Aestivum
Puccinia Striiformis
Marcadores Genéticos
Argentina
QTL - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/3564
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Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivarsCobo, NicolásPfluger, Laura AliciaChen, XianmingDubcovsky, JorgeWheatVarietiesPlant DiseasesRustsDisease ResistanceQuantitative Trait LociGenetic MarkersTrigoVariedadesEnfermedades de las PlantasRoyaResistencia a la EnfermedadLoci de Rasgos CuantitativosTriticum AestivumPuccinia StriiformisMarcadores GenéticosArgentinaQTLDuring the last two decades, new virulent and aggressive races of Puccinia striiformis Westend. f. sp. tritici (Pst) have spread worldwide, causing devastating epidemics and prompting the search for new sources of resistance in wheat (Triticum aestivum L.). Between 2012 and 2017, we mapped four stripe rust resistance quantitative trait loci (QTL) effective against the Pst races present in California, USA, using recombinant inbred lines (RILs) developed from the cross between the Argentinean cultivars ‘Klein Proteo’ and ‘Klein Chajá’. The RIL population showed transgressive segregation in all six growing seasons relative to the parental lines, which showed moderate levels of Pst resistance. Analyses by year detected QTL conferring adult plant resistance on chromosomes 1BL, 2BS, 3D centromeric (from Klein Chajá), and 4DL (from Klein Proteo). QYr.ucw-1BL, mapped in the Yr29 resistance gene region, was significant in all seasons (P < 0.01) and explained on average 31.0 to 32.8% of the observed variation. QYr.ucw-2BS showed a stronger effect than QYr.ucw-1BL in 2013 but was ineffective in 2014 and 2016. This QTL also conferred seedling resistance, suggesting that it is an all-stage resistance gene. Centromeric QYr.ucw-3D and QYr.ucw-4DL showed smaller effects than the previous QTL and were significant only in some of the experiments. No significant interactions were detected among QTL, indicating the absence of digenic epistatic effects. The molecular markers identified in this study can be used to combine these genes and accelerate their deployment in wheat breeding programs.Instituto de Recursos BiológicosFil: Cobo, Nicolás. University of California. Department of Plant Sciences; Estados Unidos. Howard Hughes Medical Institute; Estados UnidosFil: Pfluger, Laura Alicia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; ArgentinaFil: Chen, Xianming. Washington State Univ. Wheat Health, Genetics and Quality Research Unit. Department of Plant Pathology; Estados UnidosFil: Dubcovsky, Jorge. University of California. Department of Plant Sciences; Estados Unidos. Howard Hughes Medical Institute; Estados UnidosCrop Science Society of America2018-10-08T13:59:59Z2018-10-08T13:59:59Z2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/3564https://dl.sciencesocieties.org/publications/cs/articles/0/0/cropsci2018.04.02860011-183X1435-0653 (Online)10.2135/cropsci2018.04.0286Crop science 58 : 1-14. (November–december 2018)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:27Zoai:localhost:20.500.12123/3564instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:27.728INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
dc.title.none.fl_str_mv |
Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivars |
title |
Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivars |
spellingShingle |
Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivars Cobo, Nicolás Wheat Varieties Plant Diseases Rusts Disease Resistance Quantitative Trait Loci Genetic Markers Trigo Variedades Enfermedades de las Plantas Roya Resistencia a la Enfermedad Loci de Rasgos Cuantitativos Triticum Aestivum Puccinia Striiformis Marcadores Genéticos Argentina QTL |
title_short |
Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivars |
title_full |
Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivars |
title_fullStr |
Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivars |
title_full_unstemmed |
Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivars |
title_sort |
Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivars |
dc.creator.none.fl_str_mv |
Cobo, Nicolás Pfluger, Laura Alicia Chen, Xianming Dubcovsky, Jorge |
author |
Cobo, Nicolás |
author_facet |
Cobo, Nicolás Pfluger, Laura Alicia Chen, Xianming Dubcovsky, Jorge |
author_role |
author |
author2 |
Pfluger, Laura Alicia Chen, Xianming Dubcovsky, Jorge |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Wheat Varieties Plant Diseases Rusts Disease Resistance Quantitative Trait Loci Genetic Markers Trigo Variedades Enfermedades de las Plantas Roya Resistencia a la Enfermedad Loci de Rasgos Cuantitativos Triticum Aestivum Puccinia Striiformis Marcadores Genéticos Argentina QTL |
topic |
Wheat Varieties Plant Diseases Rusts Disease Resistance Quantitative Trait Loci Genetic Markers Trigo Variedades Enfermedades de las Plantas Roya Resistencia a la Enfermedad Loci de Rasgos Cuantitativos Triticum Aestivum Puccinia Striiformis Marcadores Genéticos Argentina QTL |
dc.description.none.fl_txt_mv |
During the last two decades, new virulent and aggressive races of Puccinia striiformis Westend. f. sp. tritici (Pst) have spread worldwide, causing devastating epidemics and prompting the search for new sources of resistance in wheat (Triticum aestivum L.). Between 2012 and 2017, we mapped four stripe rust resistance quantitative trait loci (QTL) effective against the Pst races present in California, USA, using recombinant inbred lines (RILs) developed from the cross between the Argentinean cultivars ‘Klein Proteo’ and ‘Klein Chajá’. The RIL population showed transgressive segregation in all six growing seasons relative to the parental lines, which showed moderate levels of Pst resistance. Analyses by year detected QTL conferring adult plant resistance on chromosomes 1BL, 2BS, 3D centromeric (from Klein Chajá), and 4DL (from Klein Proteo). QYr.ucw-1BL, mapped in the Yr29 resistance gene region, was significant in all seasons (P < 0.01) and explained on average 31.0 to 32.8% of the observed variation. QYr.ucw-2BS showed a stronger effect than QYr.ucw-1BL in 2013 but was ineffective in 2014 and 2016. This QTL also conferred seedling resistance, suggesting that it is an all-stage resistance gene. Centromeric QYr.ucw-3D and QYr.ucw-4DL showed smaller effects than the previous QTL and were significant only in some of the experiments. No significant interactions were detected among QTL, indicating the absence of digenic epistatic effects. The molecular markers identified in this study can be used to combine these genes and accelerate their deployment in wheat breeding programs. Instituto de Recursos Biológicos Fil: Cobo, Nicolás. University of California. Department of Plant Sciences; Estados Unidos. Howard Hughes Medical Institute; Estados Unidos Fil: Pfluger, Laura Alicia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina Fil: Chen, Xianming. Washington State Univ. Wheat Health, Genetics and Quality Research Unit. Department of Plant Pathology; Estados Unidos Fil: Dubcovsky, Jorge. University of California. Department of Plant Sciences; Estados Unidos. Howard Hughes Medical Institute; Estados Unidos |
description |
During the last two decades, new virulent and aggressive races of Puccinia striiformis Westend. f. sp. tritici (Pst) have spread worldwide, causing devastating epidemics and prompting the search for new sources of resistance in wheat (Triticum aestivum L.). Between 2012 and 2017, we mapped four stripe rust resistance quantitative trait loci (QTL) effective against the Pst races present in California, USA, using recombinant inbred lines (RILs) developed from the cross between the Argentinean cultivars ‘Klein Proteo’ and ‘Klein Chajá’. The RIL population showed transgressive segregation in all six growing seasons relative to the parental lines, which showed moderate levels of Pst resistance. Analyses by year detected QTL conferring adult plant resistance on chromosomes 1BL, 2BS, 3D centromeric (from Klein Chajá), and 4DL (from Klein Proteo). QYr.ucw-1BL, mapped in the Yr29 resistance gene region, was significant in all seasons (P < 0.01) and explained on average 31.0 to 32.8% of the observed variation. QYr.ucw-2BS showed a stronger effect than QYr.ucw-1BL in 2013 but was ineffective in 2014 and 2016. This QTL also conferred seedling resistance, suggesting that it is an all-stage resistance gene. Centromeric QYr.ucw-3D and QYr.ucw-4DL showed smaller effects than the previous QTL and were significant only in some of the experiments. No significant interactions were detected among QTL, indicating the absence of digenic epistatic effects. The molecular markers identified in this study can be used to combine these genes and accelerate their deployment in wheat breeding programs. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-10-08T13:59:59Z 2018-10-08T13:59:59Z 2018 |
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/20.500.12123/3564 https://dl.sciencesocieties.org/publications/cs/articles/0/0/cropsci2018.04.0286 0011-183X 1435-0653 (Online) 10.2135/cropsci2018.04.0286 |
url |
http://hdl.handle.net/20.500.12123/3564 https://dl.sciencesocieties.org/publications/cs/articles/0/0/cropsci2018.04.0286 |
identifier_str_mv |
0011-183X 1435-0653 (Online) 10.2135/cropsci2018.04.0286 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/restrictedAccess |
eu_rights_str_mv |
restrictedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Crop Science Society of America |
publisher.none.fl_str_mv |
Crop Science Society of America |
dc.source.none.fl_str_mv |
Crop science 58 : 1-14. (November–december 2018) reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria |
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INTA Digital (INTA) |
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INTA Digital (INTA) |
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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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12.559606 |