Transcriptomic responses in spring canola carrying clubroot resistance introgressed from rutabaga or Mendel

Canola production has been threatened by clubroot disease caused by Plasmodiophora brassicae Woronin, which in extreme cases can result in complete crop failure. Development of clubroot resistant cultivars is one of the important ways of managing this disease. Clubroot resistance has been introgressed into spring canola from various sources of which the resistance introgressed from winter canola cv. Mendel and rutabaga have been used most extensively in Canada; however, the molecular basis including a comparative analysis of this resistance has not yet been studied. This knowledge would be beneficial for the development of rational strategies aimed at attaining durable clubroot resistant cultivars in the longer term.