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Mapping of QTLs associated with recovery resistance to streak virus disease in maize

dc.contributor.authorLadejobi, O.
dc.contributor.authorSalaudeen, M.T.
dc.contributor.authorKumar, P.L.
dc.contributor.authorMenkir, A.
dc.contributor.authorAdesoye, A.
dc.contributor.authorAtiri, G.
dc.contributor.authorGedil, M.
dc.date.accessioned2019-12-04T11:30:12Z
dc.date.available2019-12-04T11:30:12Z
dc.date.issued2018-06
dc.identifier.citationLadejobi, O., Salaudeen, M.T., Kumar, P.L., Menkir, A., Adesoye, A., Atiri, G. & Gedil, M. (2018). Mapping of QTLs associated with recovery resistance to streak virus disease in maize. Annals of Agricultural Sciences, 63(1), 115-121.
dc.identifier.issn0570-1783
dc.identifier.urihttps://hdl.handle.net/20.500.12478/5222
dc.descriptionOpen Access Article; Published online: 10 June 2018
dc.description.abstractMaize streak virus (MSV, genus Mastrevirus, family Geminiviridae), vectored by the leafhoppers (Cicadulina sp.), is the most economically important viral disease of maize endemic to Sub-Saharan Africa and its offshore islands. Yield losses due to MSV are mainly controlled through use of resistant varieties. ‘Recovery’ (ability of plants to reduce symptom severity), is one of the types of resistance being used to develop MSV resistant cultivars through breeding. This study was conducted to map Quantitative Trait Loci (QTLs) associated with recovery resistance to MSV in a mapping population comprising 250 S1 lines derived from a cross between two MSV resistant lines. The population was genotyped using single nucleotide polymorphism (SNP) markers at 269 loci. A genetic map of 11 linkage groups was constructed comprising 230 SNP markers. Four QTLs, two putative QTLs with significant effect on chromosome 3 and two other QTLs with reduced effect on chromosomes 7 and 9, were identified from the population. The two QTLs on chromosome 3 together accounted for 47 to 51% of the total phenotypic variance while the other two QTLs accounted for 28 to 32% of the total variation. These QTLs originated from the two parents of the mapping population had both additive and dominance effects but interaction among the four loci was not significant. Further validation of these QTLs associated with recovery resistance in other diverse populations will lead to the development of new genomic resources to enhance breeding for MSV resistant maize.
dc.format.extent115-121
dc.language.isoen
dc.rightsCC-BY-4.0
dc.subjectMaize
dc.subjectMaize Streak Virus
dc.subjectBreeding
dc.subjectLeafhoppers
dc.subjectQuantitative Trait Loci
dc.titleMapping of QTLs associated with recovery resistance to streak virus disease in maize
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpMaize
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Ibadan
cg.contributor.affiliationFederal University of Technology, Minna
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.creator.identifierMuhammadu T Salaudeen: 0000-0003-1196-4254
cg.creator.identifierP. Lava Kumar: 0000-0003-4388-6510
cg.creator.identifierAbebe Menkir: 0000-0002-5907-9177
cg.creator.identifierMelaku Gedil: 0000-0002-6258-6014
cg.researchthemeBIOTECH & PLANT BREEDING
cg.researchthemePLANT PRODUCTION & HEALTH
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectMaize
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalAnnals of Agricultural Sciences
cg.howpublishedFormally Published
cg.accessibilitystatusOpen Access
local.dspaceid102987
cg.targetaudienceScientists
cg.identifier.doihttp://dx.doi.org/10.1016/j.aoas.2018.05.006


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