Additional file 1: Table S1. C. jejuni ST50, ST51 and ST257 genomes (n = 116) collected in the PATRIC genome database. Table S2. C. jejuni virulence genes (n = 143) under the study. Table S3. The twelve most common STs among C. jejuni genomes (n = 116) deposited in the PATRIC genome database. Table S4. The occurrence of virulence genes (n = 143) in C. jejuni ST50, ST51 and ST257 strains under the study. Table S5. The occurence of 25 genes recognized by Buchanan et al. [17] as markers of human

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... thogenic C. jejuni strains in genomes of C. jejuni ST50, ST51 and ST257. Figure S1. The distribution C. jejuni pan-genome genes and the number of isolates possessing them (visualized using roary_plots.py script). Figure S2. The frequency of C. jejuni genes versus the number of genomes (visualized using roary_plots.py script). Figure S3. The phylogenetic tree compared to a matrix with the presence and absence of C. jejuni core and accessory genes (visualized using roary_plots.py script). Figure S4. Similarity of C. jejuni 81-176 plasmid pTet (A) and C. jejuni CFSAN054107 plasmid pGMI16-002 (B) with C. jejuni strains under the study carrying tetO on plasmid contigs. Figure S5. UPGMA cluster tree illustrating identity of amino acid sequences of TetO variants detected in C. jejuni strains. The evolutionary distances were computed using the Poisson correction method, and are in the units of the number of amino acid substitutions per site. The tree was built in MEGA7 software. Figure S6. Chromosomal locations of the tetO gene in C. jejuni genomes under the study. Figure S7. Similarity of C. jejuni CFSAN054107 plasmid pGMI16-002 with C. jejuni genomes under the study carrying aminoglycoside resistance genes.