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Genetic analysis of zinc, iron and provitamin A content in tropical maize (Zea mays L.)

dc.contributor.authorUdo, E.
dc.contributor.authorAbe, A.
dc.contributor.authorMeseka, S.K.
dc.contributor.authorMengesha Abera, W.
dc.contributor.authorMenkir, A.
dc.date.accessioned2023-05-31T11:31:00Z
dc.date.available2023-05-31T11:31:00Z
dc.date.issued2023-01
dc.identifier.citationUdo, E., Abe, A., Meseka, S.K., Mengesha Abera, W. & Menkir, A. (2023). Genetic analysis of zinc, iron and provitamin A content in tropical maize (Zea mays L.). Agronomy, 13(1):266, 1-17.
dc.identifier.issn2073-4395
dc.identifier.urihttps://hdl.handle.net/20.500.12478/8183
dc.description.abstractBreeding maize with high contents of zinc, iron and provitamin A (PVA) could be effective in mitigating micronutrient deficiency in developing countries with a high reliance on maize-based diets. Information on the mode of inheritance of zinc, iron, PVA and grain yield (GY) would facilitate the development of varieties with enhanced contents of these nutrients. Twenty-four yellow to orange maize inbred lines and their 96 F1 hybrids generated using North Carolina Design II, were evaluated alongside four checks for two years at two locations in Nigeria. The effects of environment, hybrid and inbred line were significant for GY and contents of zinc, iron and PVA. The GY, and contents of zinc, iron and PVA of the hybrids ranged from 1.49 to 6.05 t ha−1, 22.51 to 33.33 mg kg−1, 20.04 to 29.65 mg kg−1 and 3.55 to 15.28 µg g−1, respectively. Additive gene effects controlled the accumulation of PVA and Fe, whereas both additive and non-additive gene effects controlled the inheritance of Zn and GY. Inbred lines with high general combining ability for GY and single or multiple micronutrients were identified, and could be used to develop hybrids and synthetics that combine high GY with high micronutrient content. Six hybrids combined high GY with high contents of all three micronutrients, and are recommended for further evaluation and possible release. Our study revealed the feasibility of enriching maize with multiple micronutrients without compromising grain yield.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent1-17
dc.language.isoen
dc.subjectGenes
dc.subjectMicronutrients
dc.subjectNutrient Deficiencies
dc.subjectMaize
dc.subjectNigeria
dc.titleGenetic analysis of zinc, iron and provitamin A content in tropical maize (Zea mays L.)
dc.typeJournal Article
cg.contributor.crpMaize
cg.contributor.affiliationUniversity of Ibadan
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidUDO:2023
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectFood Security
cg.iitasubjectMaize
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.journalAgronomy
cg.notesOpen Access Journal; Published online: 16 Jan 2023
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.3390/agronomy13010266
cg.iitaauthor.identifierSILVESTRO MESEKA: 0000-0003-1004-2450
cg.iitaauthor.identifierWende Mengesha: 0000-0002-2239-7323
cg.iitaauthor.identifierAbebe Menkir: 0000-0002-5907-9177
cg.futureupdate.requiredNo
cg.identifier.issue1: 266
cg.identifier.volume13


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