A genome-wide association study using Myanmar indica diversity panel reveals a significant genomic region associated with heading date in rice.

ABSTRACT: Heading date is a key agronomic trait for adapting rice varieties to different growing areas and crop seasons. The genetic mechanism of heading date in Myanmar rice accessions was investigated using a genome-wide association study (GWAS) in a 250-variety indica diversity panel collected from different geographical regions. Using the days to heading data collected in 2019 and 2020, a major genomic region associated with the heading date, designated as MTA3, was found on chromosome 3. The linkage disequilibrium block of the MTA3 contained the coding sequence (CDS) of the phytochrome gene PhyC but not in its promoter region. Haplotype analysis of the 2-kb promoter and gene regions of PhyC revealed the six haplotypes, PHYCHapA, B, C, D, E, and F. The most prominent haploty

SUBMITTER: Hlaing MM 

PROVIDER: S-EPMC11780332 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature