Improvement of Quality and Disease Resistance for a Heavy-Panicle Hybrid Restorer Line, R600, in Rice (<i>Oryza sativa</i> L.) by Gene Pyramiding Breeding.

ABSTRACT: The utilization of heavy-panicle hybrid rice exemplifies the successful integration of architectural enhancement and heterosis, which has been widely adopted in the southwest rice-producing area of China. Iterative improvement in disease resistance and grain quality of heavy-panicle hybrid rice varieties is crucial to promote their sustainable utilization. Here, we performed a molecular design breeding strategy to introgress beneficial alleles of broad-spectrum disease resistance and grain quality into a heavy-panicle hybrid backbone restorer line Shuhui 600 (R600). We successfully developed introgression lines through marker-assisted selection to pyramid major genes (Wx^b + ALK^A-GC + Pigm + Xa23) derived from three parents (Huanghuazhan, I1

SUBMITTER: Wang H 

PROVIDER: S-EPMC11505696 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature