Breeding D1-Type Hybrid <i>Japonica</i> Rice in Diverse Upland Rainfed Environments.

ABSTRACT: 'Dianheyou615' (DHY615) is an elite Dian (D1)-type hybrid japonica rice variety, renowned for its high yield, exceptional grain quality, and unique adaptability to both irrigated and rainfed conditions in the Yungui Plateau of southwestern China. However, the genetic mechanisms underlying the agronomic performance of the D1-type hybrid japonica rice remain unclear. In this study, a comprehensive analysis of 'DHY615''s agronomic performance, genetic genealogy, and molecular genetic foundation was conducted to dissect its desirable traits for upland rainfed cultivation across diverse ecological environments. The main findings indicate that 'DHY615' possesses 6432 heterozygous SNPs, with 57.48% and 14.43% located in the promoter and coding regions, respectively, potentially affe

SUBMITTER: Wang C 

PROVIDER: S-EPMC11989851 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature