TAL-effectors occurrence among Xanthomonas campestris pv. Campestris: catch me if you can

Relevance. Xanthomonas campestris pv. campestris is a widespread bacterial pathogen that causes a black rot disease of Brassicaceae plants. It is distributed across all territories with cultivated brassica crops and has high economic significance. One of the known Xanthomonas pathogenicity factor is TAL-effectors. These proteins penetrate in plant nucleus and change expression of some host genes in order to promote infection. For some Xanthomonas species TAL-effectors are a key of bacteria success, however for Xcc their role is still remain obscure as well as TALE occurrence among Xcc belonged to different races and originated from different regions. The goal of our study was examination of TALE distribution among Xcc isolates collected in Russia.