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Genome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines

dc.contributor.authorOkunlola, G.
dc.contributor.authorBadu-Apraku, B.
dc.contributor.authorAriyo, O.
dc.contributor.authorAgre, P.
dc.contributor.authorOffernedo, Q.N.
dc.contributor.authorAyo-Vaughan, M.A.
dc.date.accessioned2023-04-11T07:39:23Z
dc.date.available2023-04-11T07:39:23Z
dc.date.issued2023-02
dc.identifier.citationOkunlola, G., Badu-Apraku, B., Ariyo, O., Agre, P., Offernedo, Q.N. & Ayo-Vaughan, M.A. (2023). Genome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines. G3-Genes Genomes Genetics, 13(2): jkac237, 1-11.
dc.identifier.issn2160-1836
dc.identifier.urihttps://hdl.handle.net/20.500.12478/8121
dc.description.abstractIdentification of genes associated with Striga resistance is invaluable for accelerating genetic gains in breeding for Striga resistance in maize. We conducted a genome-wide association study to identify genomic regions associated with grain yield and other agronomic traits under artificial Striga field infestation. One hundred and forty-one extra-early quality protein maize inbred lines were phenotyped for key agronomic traits. The inbred lines were also genotyped using 49,185 DArTseq markers from which 8,143 were retained for population structure analysis and genome wide-association study. Cluster analysis and population structure revealed the presence of 3 well-defined genetic groups. Using the mixed linear model, 22 SNP markers were identified to be significantly associated with grain yield, Striga damage at 10 weeks after planting, number of emerged Striga plants at 8 and 10 weeks after planting and ear aspect. The identified SNP markers would be useful for breeders for marker-assisted selection to accelerate the genetic enhancement of maize for Striga resistance in sub-Saharan Africa after validation.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent1-11
dc.language.isoen
dc.subjectSingle Nucleotide Polymorphism
dc.subjectStriga Hermonthica
dc.subjectMarker-Assisted Selection
dc.subjectMaize
dc.subjectClimate Change
dc.subjectFood Security
dc.titleGenome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines
dc.typeJournal Article
cg.contributor.crpMaize
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationFederal University of Agriculture Abeokuta
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidOKUNLOLA:2023
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectClimate Change
cg.iitasubjectFood Security
cg.iitasubjectMaize
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.journalG3-Genes Genomes Genetics
cg.notesOpen Access Journal; Published online: 08 Sep 2022
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.1093/g3journal/jkac237
cg.iitaauthor.identifierBAFFOUR BADU-APRAKU: 0000-0003-0113-5487
cg.iitaauthor.identifierPaterne AGRE: 0000-0003-1231-2530
cg.iitaauthor.identifierQueen Nkem Offornedo: 0000-0002-1317-219X
cg.futureupdate.requiredNo
cg.identifier.issue2: jkac237
cg.identifier.volume13


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