Canola with Stacked Genes Shows Moderate Resistance and Resilience against a Field Population of Plasmodiophora brassicae (Clubroot) Pathotype X.

ABSTRACT: Genetic resistance is a cornerstone for managing clubroot (Plasmodiophora brassicae). However, when used repeatedly, a clubroot resistance (CR) gene can be broken rapidly. In this study, canola inbred/hybrid lines carrying one or two CR genes (Rcr1/CRa^M and Crr1^rutb) were assessed against P. brassicae pathotype X by repeated exposure to the same inoculum source under a controlled environment. Lines carrying two CR genes, either Rcr1 + Crr1^rutb or CRa^M + Crr1^rutb, showed partial resistance. Selected lines were inoculated with a field pathotype X population (L-G3) at 5 × 10⁶ resting spores/g soil, and all clubs were returned to the soil they came from six weeks after inoc

SUBMITTER: Tonu NN 

PROVIDER: S-EPMC9960129 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature