Insights into early generation synthetic amphidiploid Brassica juncea: a strategy to harness maximum parental genomic diversity for improving Indian mustard.

ABSTRACT: In India, amphidiploid Brassica juncea (AABB, 2n=36) is a significant oilseed crop, but its small gene pool limits its ability to develop traits of higher breeding and economic value. Through interspecific hybridization from various lines of the progenitor species, resynthesized B. juncea (RBJ) can provide breeders with additional resources for creating genetically diverse stress-tolerant and high-yielding cultivars. Three B. rapa accessions and eight B. nigra accessions were crossed in this study to develop 33 synthetic B. juncea lines. A total of 28 crosses were attempted, including the three-way crosses, but only the cross combinations with B. rapa cytoplasm led to successful embryonic development. Molecular diversity analysis of these lines in

SUBMITTER: Garg P 

PROVIDER: S-EPMC11865204 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature