Map overlapping of QTL for resistance to Fusarium ear rot and associated traits in maize
Mapping QTL for disease resistance and associated traits is important to develop maize (Zea mays L.) hybrids less susceptible to ear rots. A biparental mapping population of 298 F5 recombinant inbreds (RIs), obtained from the cross between LP4637 (moderately resistant) and L4674 (susceptible), was g...
| Main Authors: | , , , , , |
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| Format: | Artículo |
| Language: | Inglés |
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Springer
2021
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| Online Access: | http://hdl.handle.net/20.500.12123/9075 https://link.springer.com/article/10.1007/s10681-021-02814-y https://doi.org/10.1007/s10681-021-02814-y |
| _version_ | 1855484324886872064 |
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| author | Giomi, Gerardo Mario Sampietro, Diego Alejandro Velazco, Julio Gabriel Iglesias, Juliana Fernandez, Mariana Oviedo, María Silvina |
| author_browse | Fernandez, Mariana Giomi, Gerardo Mario Iglesias, Juliana Oviedo, María Silvina Sampietro, Diego Alejandro Velazco, Julio Gabriel |
| author_facet | Giomi, Gerardo Mario Sampietro, Diego Alejandro Velazco, Julio Gabriel Iglesias, Juliana Fernandez, Mariana Oviedo, María Silvina |
| author_sort | Giomi, Gerardo Mario |
| collection | INTA Digital |
| description | Mapping QTL for disease resistance and associated traits is important to develop maize (Zea mays L.) hybrids less susceptible to ear rots. A biparental mapping population of 298 F5 recombinant inbreds (RIs), obtained from the cross between LP4637 (moderately resistant) and L4674 (susceptible), was genotyped with 250 single nucleotide polymorphism (SNP) markers. A set of 120 of those RIs, selected by uniRec procedure, and parental inbreds were phenotyped in two environments for pericarp thickness, pericarp content of trans-ferulic acid (tFA) and resistance to Fusarium ear rot. The set of parental inbreds exhibited an average density of one marker every 5 cM, 6% of a residual heterozygosity, and 5% of lost data. Moderate negative genotypic correlations were observed between disease severity and pericarp thickness (rG = − 0.31) and between disease severity and pericarp content of tFA (rG = − 0.32). Quantitative trait loci were mapped for disease severity in bins 1.06, 2.03, 3.06, 5.04, 5.07 and 6.05, for pericarp thickness in bins 1.06, 2.03, 4.02 and 4.05, and for pericarp content of tFA in bins 2.03, 3.06, 4.05 and 6.05. The joint models, including some additive-by-additive epistasis gene effects, explained 56.0–58.2%, 46.6–45.5%, 41.4–47.1% of the phenotypic variability for disease severity, pericarp thickness and pericarp content of tFA, respectively, depending on the environment. The most important QTL for the three traits overlapped in bin 2.03 indicating that genes from this genomic region might contribute to the expression of disease resistance by increasing thickness and tFA content of the pericarp. |
| format | Artículo |
| id | INTA9075 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA90752021-04-13T13:15:14Z Map overlapping of QTL for resistance to Fusarium ear rot and associated traits in maize Giomi, Gerardo Mario Sampietro, Diego Alejandro Velazco, Julio Gabriel Iglesias, Juliana Fernandez, Mariana Oviedo, María Silvina Maíz Fitopatología Enfermedades de las Plantas Enfermedades Fungosas Fusarium Compuestos Fenólicos Maize Plant Pathology Plant Diseases Fungal Diseases Phenolic Compounds Mapping QTL for disease resistance and associated traits is important to develop maize (Zea mays L.) hybrids less susceptible to ear rots. A biparental mapping population of 298 F5 recombinant inbreds (RIs), obtained from the cross between LP4637 (moderately resistant) and L4674 (susceptible), was genotyped with 250 single nucleotide polymorphism (SNP) markers. A set of 120 of those RIs, selected by uniRec procedure, and parental inbreds were phenotyped in two environments for pericarp thickness, pericarp content of trans-ferulic acid (tFA) and resistance to Fusarium ear rot. The set of parental inbreds exhibited an average density of one marker every 5 cM, 6% of a residual heterozygosity, and 5% of lost data. Moderate negative genotypic correlations were observed between disease severity and pericarp thickness (rG = − 0.31) and between disease severity and pericarp content of tFA (rG = − 0.32). Quantitative trait loci were mapped for disease severity in bins 1.06, 2.03, 3.06, 5.04, 5.07 and 6.05, for pericarp thickness in bins 1.06, 2.03, 4.02 and 4.05, and for pericarp content of tFA in bins 2.03, 3.06, 4.05 and 6.05. The joint models, including some additive-by-additive epistasis gene effects, explained 56.0–58.2%, 46.6–45.5%, 41.4–47.1% of the phenotypic variability for disease severity, pericarp thickness and pericarp content of tFA, respectively, depending on the environment. The most important QTL for the three traits overlapped in bin 2.03 indicating that genes from this genomic region might contribute to the expression of disease resistance by increasing thickness and tFA content of the pericarp. EEA Pergamino Fil: Giomi, Gerardo Mario. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio de Semillas; Argentina Fil: Sampietro, Diego Alejandro. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina Fil: Velazco, Julio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Forrajeras; Argentina Fil: Iglesias, Juliana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Maíz; Argentina. Fil: Fernández, Mariana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Fitopatología; Argentina Fil: Oviedo, María Silvina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina Fil: Presello, Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Maíz; Argentina 2021-04-13T13:05:51Z 2021-04-13T13:05:51Z 2021-04 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/9075 https://link.springer.com/article/10.1007/s10681-021-02814-y 0014-2336 1573-5060 (online) https://doi.org/10.1007/s10681-021-02814-y eng info:eu-repograntAgreement/INTA/PNCYO-1127023/AR./Contaminación con micotoxinas en grano de cereales y oleaginosas en pre y poscosecha: identificación de situaciones de riesgo, desarrollo de pronósticos con base meteorológica y de buenas prácticas de manejo, internalización territorial. info:eu-repograntAgreement/INTA/PNCYO-1127043/AR./Desarrollo de germoplasma y cultivares comerciales de cereales de verano. info:eu-repo/semantics/restrictedAccess application/pdf Springer Euphytica 217 : 1-10. (2021) |
| spellingShingle | Maíz Fitopatología Enfermedades de las Plantas Enfermedades Fungosas Fusarium Compuestos Fenólicos Maize Plant Pathology Plant Diseases Fungal Diseases Phenolic Compounds Giomi, Gerardo Mario Sampietro, Diego Alejandro Velazco, Julio Gabriel Iglesias, Juliana Fernandez, Mariana Oviedo, María Silvina Map overlapping of QTL for resistance to Fusarium ear rot and associated traits in maize |
| title | Map overlapping of QTL for resistance to Fusarium ear rot and associated traits in maize |
| title_full | Map overlapping of QTL for resistance to Fusarium ear rot and associated traits in maize |
| title_fullStr | Map overlapping of QTL for resistance to Fusarium ear rot and associated traits in maize |
| title_full_unstemmed | Map overlapping of QTL for resistance to Fusarium ear rot and associated traits in maize |
| title_short | Map overlapping of QTL for resistance to Fusarium ear rot and associated traits in maize |
| title_sort | map overlapping of qtl for resistance to fusarium ear rot and associated traits in maize |
| topic | Maíz Fitopatología Enfermedades de las Plantas Enfermedades Fungosas Fusarium Compuestos Fenólicos Maize Plant Pathology Plant Diseases Fungal Diseases Phenolic Compounds |
| url | http://hdl.handle.net/20.500.12123/9075 https://link.springer.com/article/10.1007/s10681-021-02814-y https://doi.org/10.1007/s10681-021-02814-y |
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