<p>The available plasmid sequences that deposited in the NCBI GenBank database involved in each strain were extracted and analyzed using Local BLAST (Blastn). Whether the TAs of Ab3 appear in other selected strains was judged according to the fact if the relative genes in other strains displayed the orthologous segments with a query coverage of 30% and identity of 60%. The distribution of the TAs between different strains were identified and illustrated in a 3D graph. X, Y and Z-axis, respectively, denote TA superfamily, organism and the number of genes.</p
