Clubroot caused by led to a significant decrease in the yield and quality of , one of the most important oil crops in the world. JAZ proteins are an essential repressor of jasmonates (JAs) signaling cascades, which have been reported to regulate the resistance to in . In this study, we identified 51, 25 and 26 JAZ proteins in , and , respectively. Phylogenetic analysis displayed that the notedJAZ proteins were divided into six groups. The JAZ proteins clustered in the same group shared a similar motif composition and distribution order. The 51 were not evenly assigned on seventeen chromosomes in , except for A04 and C07. The of the / group presented themselves to be significantly up-regulated after inoculation by . Variation analysis in a population with a specific resistance performance in displayed a 64 bp translocation in (, homologous to ) with an 8% reduction in the disease index on average. Through protein-protein interaction analysis, 65 genes were identified that might be involved in regulation of resistance to in , which provided new clues for understanding the resistance mechanism to .