Cabbage (Brassica oleracea) is a very important vegetable worldwide and biotic stress is a crucial issue for this crop. Enhancement of resistance by exploiting stress resistance-related genes offers the most efficient approach to address this issue. Among the stress resistance-related genes, thaumatin-like proteins (TLPs) play a vital role in enhancement of resistance against stresses. In this study, we identified 12 TLPs from B. oleracea genomic DNA sequencing database, analyzed their sequences and compared with other published pathogenesis-related TLPs, and found a high degree of homology with them. In addition, these genes showed an organ-specific expression, three of which expressed differentially after Pectobacterium carotovorum subsp. carotovorum infection in cabbage plants. Data obtained in this study suggest the probable involvement of TLPs in resistance against soft rot disease of Brassica.

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