Genome-wide association analysis reveals novel genetic loci involved in rice brown spot resistance.

ABSTRACT:

Background

Rice brown spot (BS) substantially impacts both yield and grain quality of rice, while research on this disease remains relatively limited compared to some major rice diseases like rice blast and rice sheath blight.

Results

In our study, 529 rice accessions were evaluated for BS resistance during two growing seasons (October 2021 and March 2022), resulting in the identification of 93 accessions that consistently exhibited resistance (R) or high resistance (HR) to BS across both seasons. Among these, 5 accessions consistently displayed high resistance (HR) grade in both seasons. Additionally, GWAS analysis was performed on the BS resistant level gathered from 529 accessions across two distinct seasons, revealing 52 significant single-season identified QTLs, 11 co-l

SUBMITTER: Huang Y 

PROVIDER: S-EPMC12801899 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature