Genome-wide association study reveals that the cupin domain protein OsCDP3.10 regulates seed vigour in rice.

ABSTRACT: Seed vigour is an imperative trait for the direct seeding of rice. In this study, we examined the genetic regulation of seedling percentage at the early germination using a genome-wide association study in rice. One major quantitative trait loci qSP3 for seedling percentage was identified, and the candidate gene was validated as qSP3, encoding a cupin domain protein OsCDP3.10 for the synthesis of 52 kDa globulin. Disruption of this gene in Oscdp3.10 mutants reduced the seed vigour, including the germination potential and seedling percentage, at the early germination in rice. The lacking accumulation of 52 kDa globulin was observed in the mature grains of the Oscdp3.10 mutants. The significantly lower amino acid contents were observed in the mature grains and the early germinating seeds of

SUBMITTER: Peng L 

PROVIDER: S-EPMC8882794 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature