The transcriptome-wide gene expression was compared between susceptible and resistant Chinese cabbage cultivars to identify genes that contributed to clubroot resistance.A higher number of differentially expressed genes were detected in susceptible cultivars than in resistant cultivars.Fifty-six genes involved in cell wall modification,hormone signaling,root marphogenesis,nematodes response and cell proliferation were uniquely expressed in the resistant cultivars.Among them,27 genes were involved in cell wall modification and hormone signaling,indicating that genes in these two types might play a vital role in the defense response to pathogen infection.