Identification of genomic region(s) responsible for high iron and zinc content in rice.

ABSTRACT: Micronutrient especially iron and zinc-enriched rice hold immense promise for sustainable and cost-effective solutions to overcome malnutrition. In this context, BC₂F₅ population derived from cross between RP-Bio226 and Sampada was used to localize genomic region(s)/QTL(s) for grain Fe (iron) and Zn (zinc) content together with yield and yield-related traits. Genotyping of mapping population with 108 SSR markers resulted in a genetic map of 2317.5 cM with an average marker distance of 21.5 cM. Mean grain mineral content in the mapping population across the two seasons ranged from 10.5-17.5 ppm for Fe and 11.3-22.1 ppm for Zn. Based on the multi-season phenotypic data together with genotypic data, a total of two major QTLs for Fe (PVE upto 17.1%) and three for Zn (PVE

SUBMITTER: Dixit S 

PROVIDER: S-EPMC6544658 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature