Multi-parental QTL mapping of resistance to white spot of maize (Zea mays) in southern Brazil and relationship to QTLs of other foliar diseases
Maize white spot (MWS) is one of the most important foliar diseases in Brazil causing significant yield losses. Breeding genotypes with MWS resistance is the most sustainable alternative for managing such losses; however, their genetic control is poorly understood. Our objectives were to identify genomic regions controlling MWS resistance and to explore the presence of common regions controlling resistance to MWS, grey leaf spot (GLS) and northern corn leaf blight (NCLB). We performed a multi-parental QTL mapping for MWS and GLS resistance with a total of 474 testcrosses and phenotypic data collected in southern Brazil. Six QTLs for MWS resistance on bins 1.03, 1.04, 6.02, 8.05, 1.03, and 10.06 were detected. These findings were compared with previously reported QTLs for NCLB in the same populations, and a common QTL region (bin 8.05) controlling MWS and NCLB resistances was identified. Our findings contribute to a better understanding of MWS resistance by revealing three QTLs (bin 6.02, 1.03, and 10.06), to the best of our knowledge, not yet described in the literature, that are valuable for improving MWS resistance and one promising candidate region for multiple disease resistance.
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Wiley
2021-10
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Subjects: | Maíz, Enfermedades de las Plantas, Enfermedades Foliares, Resistencia Genética, Resistencia a la Enfermedad, Manchas, Plagas de Plantas, Maize, Plant Diseases, Foliar Diseases, Genetic Resistance, Disease Resistance, Spots, Plant Pests, Pantoea ananatis, |
Online Access: | http://hdl.handle.net/20.500.12123/10801 https://onlinelibrary.wiley.com/doi/10.1111/pbr.12964 https://doi.org/10.1111/pbr.12964 |
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oai:localhost:20.500.12123-108012021-11-30T12:40:33Z Multi-parental QTL mapping of resistance to white spot of maize (Zea mays) in southern Brazil and relationship to QTLs of other foliar diseases Kistner, María Belén Galiano-Carneiro, Ana Luísa Kessel, Bettina Presterl, Thomas Miedaner, Thomas Maíz Enfermedades de las Plantas Enfermedades Foliares Resistencia Genética Resistencia a la Enfermedad Manchas Plagas de Plantas Maize Plant Diseases Foliar Diseases Genetic Resistance Disease Resistance Spots Plant Pests Pantoea ananatis Maize white spot (MWS) is one of the most important foliar diseases in Brazil causing significant yield losses. Breeding genotypes with MWS resistance is the most sustainable alternative for managing such losses; however, their genetic control is poorly understood. Our objectives were to identify genomic regions controlling MWS resistance and to explore the presence of common regions controlling resistance to MWS, grey leaf spot (GLS) and northern corn leaf blight (NCLB). We performed a multi-parental QTL mapping for MWS and GLS resistance with a total of 474 testcrosses and phenotypic data collected in southern Brazil. Six QTLs for MWS resistance on bins 1.03, 1.04, 6.02, 8.05, 1.03, and 10.06 were detected. These findings were compared with previously reported QTLs for NCLB in the same populations, and a common QTL region (bin 8.05) controlling MWS and NCLB resistances was identified. Our findings contribute to a better understanding of MWS resistance by revealing three QTLs (bin 6.02, 1.03, and 10.06), to the best of our knowledge, not yet described in the literature, that are valuable for improving MWS resistance and one promising candidate region for multiple disease resistance. EEA Pergamino Fil: Kistner, María Belén. University of Hohenheim. State Plant Breeding Institute; Alemania Fil: Kistner, María Belén. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Maíz; Argentina Fil: Kistner, María Belén. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Galiano-Carneiro, Ana Luísa. University of Hohenheim. State Plant Breeding Institute; Alemania Fil: Galiano-Carneiro, Ana Luísa. Kleinwanzlebener Saatzucht (KWS) SAAT SE & Co. KGaA; Alemania Fil: Kessel, Bettina. Kleinwanzlebener Saatzucht (KWS) SAAT SE & Co. KGaA; Alemania Fil: Presterl, Thomas. Kleinwanzlebener Saatzucht (KWS) SAAT SE & Co. KGaA; Alemania Fil: Miedaner, Thomas. University of Hohenheim. State Plant Breeding Institute; Alemania 2021-11-30T12:32:57Z 2021-11-30T12:32:57Z 2021-10 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/10801 https://onlinelibrary.wiley.com/doi/10.1111/pbr.12964 1439-0523 (online) 1079-9541 https://doi.org/10.1111/pbr.12964 eng info:eu-repo/semantics/openAccess application/pdf Wiley Plant Breed 140 (5) : 801–811. (October 2021) |
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Maíz Enfermedades de las Plantas Enfermedades Foliares Resistencia Genética Resistencia a la Enfermedad Manchas Plagas de Plantas Maize Plant Diseases Foliar Diseases Genetic Resistance Disease Resistance Spots Plant Pests Pantoea ananatis Maíz Enfermedades de las Plantas Enfermedades Foliares Resistencia Genética Resistencia a la Enfermedad Manchas Plagas de Plantas Maize Plant Diseases Foliar Diseases Genetic Resistance Disease Resistance Spots Plant Pests Pantoea ananatis |
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Maíz Enfermedades de las Plantas Enfermedades Foliares Resistencia Genética Resistencia a la Enfermedad Manchas Plagas de Plantas Maize Plant Diseases Foliar Diseases Genetic Resistance Disease Resistance Spots Plant Pests Pantoea ananatis Maíz Enfermedades de las Plantas Enfermedades Foliares Resistencia Genética Resistencia a la Enfermedad Manchas Plagas de Plantas Maize Plant Diseases Foliar Diseases Genetic Resistance Disease Resistance Spots Plant Pests Pantoea ananatis Kistner, María Belén Galiano-Carneiro, Ana Luísa Kessel, Bettina Presterl, Thomas Miedaner, Thomas Multi-parental QTL mapping of resistance to white spot of maize (Zea mays) in southern Brazil and relationship to QTLs of other foliar diseases |
description |
Maize white spot (MWS) is one of the most important foliar diseases in Brazil causing significant yield losses. Breeding genotypes with MWS resistance is the most sustainable alternative for managing such losses; however, their genetic control is poorly understood. Our objectives were to identify genomic regions controlling MWS resistance and to explore the presence of common regions controlling resistance to MWS, grey leaf spot (GLS) and northern corn leaf blight (NCLB). We performed a multi-parental QTL mapping for MWS and GLS resistance with a total of 474 testcrosses and phenotypic data collected in southern Brazil. Six QTLs for MWS resistance on bins 1.03, 1.04, 6.02, 8.05, 1.03, and 10.06 were detected. These findings were compared with previously reported QTLs for NCLB in the same populations, and a common QTL region (bin 8.05) controlling MWS and NCLB resistances was identified. Our findings contribute to a better understanding of MWS resistance by revealing three QTLs (bin 6.02, 1.03, and 10.06), to the best of our knowledge, not yet described in the literature, that are valuable for improving MWS resistance and one promising candidate region for multiple disease resistance. |
format |
info:ar-repo/semantics/artículo |
topic_facet |
Maíz Enfermedades de las Plantas Enfermedades Foliares Resistencia Genética Resistencia a la Enfermedad Manchas Plagas de Plantas Maize Plant Diseases Foliar Diseases Genetic Resistance Disease Resistance Spots Plant Pests Pantoea ananatis |
author |
Kistner, María Belén Galiano-Carneiro, Ana Luísa Kessel, Bettina Presterl, Thomas Miedaner, Thomas |
author_facet |
Kistner, María Belén Galiano-Carneiro, Ana Luísa Kessel, Bettina Presterl, Thomas Miedaner, Thomas |
author_sort |
Kistner, María Belén |
title |
Multi-parental QTL mapping of resistance to white spot of maize (Zea mays) in southern Brazil and relationship to QTLs of other foliar diseases |
title_short |
Multi-parental QTL mapping of resistance to white spot of maize (Zea mays) in southern Brazil and relationship to QTLs of other foliar diseases |
title_full |
Multi-parental QTL mapping of resistance to white spot of maize (Zea mays) in southern Brazil and relationship to QTLs of other foliar diseases |
title_fullStr |
Multi-parental QTL mapping of resistance to white spot of maize (Zea mays) in southern Brazil and relationship to QTLs of other foliar diseases |
title_full_unstemmed |
Multi-parental QTL mapping of resistance to white spot of maize (Zea mays) in southern Brazil and relationship to QTLs of other foliar diseases |
title_sort |
multi-parental qtl mapping of resistance to white spot of maize (zea mays) in southern brazil and relationship to qtls of other foliar diseases |
publisher |
Wiley |
publishDate |
2021-10 |
url |
http://hdl.handle.net/20.500.12123/10801 https://onlinelibrary.wiley.com/doi/10.1111/pbr.12964 https://doi.org/10.1111/pbr.12964 |
work_keys_str_mv |
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