Comprehensive genetic diversity revealed in the pre-breeding RILs (<i>O. sativa</i> × <i>O. rufipogon</i>) with enhanced yield and pigmented grain quality.

ABSTRACT: Developing high-yielding rice varieties (Oryza sativa L.) is critical to ensure global food security. The narrow genetic base in the released rice varieties has plateaued the improvement. Considering the potentials of wild rice (Oryza rufipogon), two distinct recombinant inbred line (RIL) populations were developed through interspecific hybridization (BWF: Badshabhog × O. rufipogon and CWF: Chenga × O. rufipogon) to increase the genetic base via alien introgression of hidden genes. Genetic diversity was assessed through the following: genetic variability parameters, broad-sense heritability, Mahalanobis D² test, and principal component analysis (PCA) using 15 agro-morphological characteristics that indicated enhanced genetic variation. The firs

SUBMITTER: Roy SC 

PROVIDER: S-EPMC12520640 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature