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dc.contributor.authorMenkir, A.
dc.contributor.authorMaziya-Dixon, B.
dc.contributor.authorMengesha, W.
dc.contributor.authorRocheford, T.
dc.contributor.authorAlamu, E.O.
dc.date.accessioned2019-12-04T11:08:33Z
dc.date.available2019-12-04T11:08:33Z
dc.date.issued2017-05
dc.identifier.citationMenkir, A., Maziya-Dixon, B., Mengesha, W., Rocheford, T. & Alamu, E.O. (2017). Accruing genetic gain in pro-vitamin A enrichment from harnessing diverse maize germplasm. Euphytica, 213(5), 105.
dc.identifier.issn0014-2336
dc.identifier.urihttps://hdl.handle.net/20.500.12478/1856
dc.descriptionPublished online: 18 April 2017
dc.description.abstractMaize has been targeted as one of the major crops for provitamin enrichment and delivery because it is an inexpensive and easily available source of food for millions of people in sub-Saharan Africa. Although tropical-adapted yellow maize contains provitamin-A carotenoids that can be converted into vitamin A in the human body, they represent less than 25% of the total carotenoids in most widely grown and consumed maize cultivars in Africa. Novel genes conditioning high concentration of β-carotene and other carotenoids were then continually introduced from the temperate zone and tropics to boost provitamin A in tropical-adapted maize. Several promising inbred lines developed from backcrosses involving diverse exotic donor lines displayed provitamin A concentrations that match or surpass the current breeding target of 15 μg g−1. Some of these lines attained high provitamin A content by accumulating mainly high β-carotene while others contained high provitamin A by promoting accumulation of high levels of both carotenes and xanthophylls. Several inbred lines with intermediate to high levels of provitamin A have already been used to develop hybrids and synthetics without compromising grain yield and other adaptive traits that are required to profitably cultivate maize by farmers in West and Central Africa.
dc.description.sponsorshipHarvestPlus
dc.format.extent1-12
dc.language.isoen
dc.subjectGenetic Gain
dc.subjectExotic Germlasm
dc.subjectProvitamin A Enrichment
dc.subjectCarotenes
dc.subjectXanthophylls
dc.titleAccruing genetic gain in pro-vitamin A enrichment from harnessing diverse maize germplasm
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpMaize
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationPurdue University
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectGenetic Improvement
cg.iitasubjectMaize
cg.iitasubjectPlant Genetic Resources
cg.journalEuphytica
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid83395
cg.targetaudienceScientists
cg.identifier.doihttp://dx.doi.org/10.1007/s10681-017-1890-8


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