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
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/3564

id INTADig_9bb54113ca19dcbfc309205f63dca407
oai_identifier_str oai:localhost:20.500.12123/3564
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling 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
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
_version_ 1844619126795927552
score 12.559606