Simultaneous dissection of grain carotenoid levels and kernel color in biparental maize populations with yellow-to-orange grain.

ABSTRACT: Maize enriched in provitamin A carotenoids could be key in combatting vitamin A deficiency in human populations relying on maize as a food staple. Consumer studies indicate that orange maize may be regarded as novel and preferred. This study identifies genes of relevance for grain carotenoid concentrations and kernel color, through simultaneous dissection of these traits in 10 families of the US maize nested association mapping panel that have yellow to orange grain. Quantitative trait loci were identified via joint-linkage analysis, with phenotypic variation explained for individual kernel color quantitative trait loci ranging from 2.4% to 17.5%. These quantitative trait loci were cross-analyzed with significant marker-trait associations in a genome-wide association study that utilized ∼2

SUBMITTER: LaPorte MF 

PROVIDER: S-EPMC8895983 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature