Is our hope against clubroot, Arabidopsis?

This research paper screened 60 Arabidopsis thaliana ecotypes to identify new sources of resistance to the clubroot disease, which severely affects Brassica crops. The study identified eight resistant ecotypes against a virulent Canadian pathogen strain, highlighting two novel sources named Marce-1 and DraII-6. Notably, DraII-6 showed exceptionally strong resistance and a unique pattern of elevated expression of the known resistance gene RPB1 during early infection. However, genetic analysis suggested that RPB1 alone may not fully explain the resistance in DraII-6, indicating the involvement of other factors. The findings expand the understanding of clubroot resistance mechanisms and offer potential insights for breeding more resilient Brassica crops.https://doi.org/10.1094/PDIS-05-25-0975-SC