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Genome-wide association of iron content in rice grains grown in Southern Brazil

Associação genômica ampla para teor de ferro em grãos de arroz na região Sul do Brasil

Abstract

The objective of this work was to map the chromosomal regions responsible for iron accumulation in rice grains, in Southern Brazil. Eighty-one rice accessions were genotyped and phenotyped for Fe accumulation. Single nucleotide polymorphisms were mapped in the whole grain on chromosomes 1, 5, 6, and 10, from which 13 candidate genes were identified. Some of the genes, such as O s10g040680 0, seem to have a relationship with Fe homeostasis, while others are related to other metabolic processes or have an unknown function.

Index terms:
Or yza sativa ; brown rice; candidate genes; genotyping; mapping

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