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Abstract
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 [ver mas...]
dc.contributor.authorGiomi, Gerardo Mario
dc.contributor.authorSampietro, Diego Alejandro
dc.contributor.authorVelazco, Julio Gabriel
dc.contributor.authorIglesias, Juliana
dc.contributor.authorFernandez, Mariana
dc.contributor.authorOviedo, María Silvina
dc.date.accessioned2021-04-13T13:05:51Z
dc.date.available2021-04-13T13:05:51Z
dc.date.issued2021-04
dc.identifier.issn0014-2336
dc.identifier.issn1573-5060 (online)
dc.identifier.otherhttps://doi.org/10.1007/s10681-021-02814-y
dc.identifier.urihttp://hdl.handle.net/20.500.12123/9075
dc.identifier.urihttps://link.springer.com/article/10.1007/s10681-021-02814-y
dc.description.abstractMapping 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.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSpringeres_AR
dc.relationinfo: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.
dc.relationinfo:eu-repograntAgreement/INTA/PNCYO-1127043/AR./Desarrollo de germoplasma y cultivares comerciales de cereales de verano.
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceEuphytica 217 : 1-10. (2021)es_AR
dc.subjectMaízes_AR
dc.subjectMaizeeng
dc.subjectFitopatologíaes_AR
dc.subjectPlant Pathologyeng
dc.subjectEnfermedades de las Plantases_AR
dc.subjectPlant Diseaseseng
dc.subjectEnfermedades Fungosases_AR
dc.subjectFungal Diseaseseng
dc.subjectFusariumes_AR
dc.subjectCompuestos Fenólicoses_AR
dc.subjectPhenolic Compoundseng
dc.titleMap overlapping of QTL for resistance to Fusarium ear rot and associated traits in maizees_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Pergaminoes_AR
dc.description.filFil: Giomi, Gerardo Mario. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio de Semillas; Argentinaes_AR
dc.description.filFil: Sampietro, Diego Alejandro. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentinaes_AR
dc.description.filFil: Velazco, Julio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Forrajeras; Argentinaes_AR
dc.description.filFil: Iglesias, Juliana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Maíz; Argentina.es_AR
dc.description.filFil: Fernández, Mariana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Fitopatología; Argentinaes_AR
dc.description.filFil: Oviedo, María Silvina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentinaes_AR
dc.description.filFil: Presello, Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Maíz; Argentinaes_AR
dc.subtypecientifico


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