GWAS using O. rufipogon population identified aleaf derived signal regulating grain size and its role in rice domestication

摘要

Oryza rufipogon is known as the immediate ancestor of Asian cultivated rice (O. sativa) which is domesticated around 10,000 years ago. It shares huge diversities of genotype and phenotype including various agronomically important traits. One of the most remarkable phenotypic variation in O. rufipogon is grain traits (size, shape, colour, etc.). In order to understand the genetic basis of diversity in grain traits, we conducted a genome-wide association study (GWAS) using 338 accessions of O. rufipogon.