Genetic improvement of clubroot resistance in the recessive genic male sterile line YA001 in <i>Brassica napus</i>.

ABSTRACT: Clubroot disease poses a serious challenge to global rapeseed production, including major growing regions in China. Introgressing clubroot-resistant (CR) genes into rapeseed is an efficient way to prevent the spread of this disease. YA001 is a stable recessive genic male-sterile (RGMS) three-line system in Brassica napus with good combining ability but high susceptibility to clubroot. To improve the clubroot-resistant of YA001, 'Bing409R', which exhibits excellent disease resistance and contains the CR gene CRb, was used as the donor parent, and the male-sterile line YA001 was used as the female parent for hybridization in Anhui Province. The temporary maintainer line of YA001 was then used as the recurrent parent for backcrossing. Marker assistant selection was conducted for

SUBMITTER: Jiang Y 

PROVIDER: S-EPMC12748198 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature