Breeding an early maturing, blast resistance water-saving and drought-resistance rice (WDR) cultivar using marker-assisted selection coupled with rapid generation advance.

ABSTRACT: The japonica water-saving and drought-resistance rice (Oryza sativa L.) (WDR) cultivar Huhan 9 harbors genes for resistance to rice blast (Magnaporthe oryzae), including Pi-ta and Pi-b. The early maturing japonica rice cultivar Suhuxiangjing and the high-yield WDR cultivars Huhan 3 and Huhan 11 were used as the parents to conduct single cross breeding and composite hybridization breeding. Strict drought resistance screening was conducted in the segregating generations, the genotypes of which were determined using functional markers of Pi-ta and Pi-b genes. By combining the rapid generation advance of the industrialized breeding system and multi-site shuttle identification, the new WDR cultivar Huhan 106 with early maturity, blast resi

SUBMITTER: Wang F 

PROVIDER: S-EPMC10248681 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature