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dc.contributor.authorGill, Rattandeep Kaur
dc.date.accessioned2014-03-04T21:12:26Z
dc.date.available2014-03-04T21:12:26Z
dc.date.issued2013-08
dc.identifier.othergill_rattandeep_k_201308_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/gill_rattandeep_k_201308_ms
dc.identifier.urihttp://hdl.handle.net/10724/29047
dc.description.abstractLate leaf spot (LLS), caused by Cercosporidium personatum, is a major foliar disease of peanut. LLS resistance is quantitative in nature. To identify genomic regions that control disease resistance, quantitative trait locus (QTL) mapping is required. Obtaining reliable phenotyping data is vital for mapping. Therefore, a population, consisting of 78 recombinant inbred lines (RILs) segregating for LLS resistance, was used for quantitative trait locus (QTL) analysis. Data were collected using three different phenotyping methods and comparisons were made. A set of 447 simple sequence repeat (SSR) and 25 single nucleotide polymorphism (SNP) markers was used for parental screening. The population was genotyped using 141 polymorphic loci. A linkage map with 94 loci, distributed into 19 LGs, was constructed based on the marker segregation data obtained from the population. A total of 7 QTL were identified that explained 10.9-38.4% of the variation in the phenotyping data.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectPeanut
dc.subjectArachis hypogaea
dc.subjectdisease resistance
dc.subjectlate leaf spot
dc.subjectCercosporidium personatum
dc.subjectLLS
dc.subjectphenotyping
dc.subjectquantitative
dc.subjectmolecular marker
dc.subjectQTL
dc.subjectmapping
dc.subjecthost resistance
dc.subjectdetached leaf
dc.titlePhenotyping methods and QTL mapping for late leaf spot resistance in cultivated peanut (Arachis hypogaea L.)
dc.typeThesis
dc.description.degreeMS
dc.description.departmentInstitute of Plant Breeding, Genetics, and Genomics
dc.description.majorPlant Breeding, Genetics and Genomics
dc.description.advisorPeggy Ozias-Akins
dc.description.committeePeggy Ozias-Akins
dc.description.committeeAlbert K. Culbreath
dc.description.committeePENG CHEE


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