Work

Detection of genomic loci associated with days to heading in tropical japonica rice through QTL-seq

Year: 2024

Type: article

Abstract: This study investigated the genetic basis ofÂ days toÂ heading (DTH) inÂ tropical japonica rice using F2Â populations derived from late-maturing Rojolele and early-maturing Rojolele Srinuk varieties. Phenotypic analysis ofÂ DTH showed continuous distribution and positive skewness. Whole genome sequencing (WGS) derived single nucleotide polymorphism (SNP) from early and late-heading bulks were used toÂ identify three candidate regions with strong association toÂ DTH: qDTH3.1 and qDTH3.2 onÂ chromosome 3, and qDTH7.1 onÂ chromosome 7, with the latter linked toÂ the Oryza sativa Pseudo-Response Regulator 37 (OsPRR37) gene. InDel markers validated qDTH7.1’s significant linkage to DTH, particularly marker ID14, which is effective for marker-assisted selection of early DTH in Rojolele background.Â

Source: Czech Journal of Genetics and Plant Breeding

DOI: 10.17221/66/2024-cjgpb