Fig. 2.

Schematic representation of the insertion of foreign genetic materials into tRNA by site-specific recombination exemplified by the GI between tRNA-Asn and P9301_01461 in PMG

(a) Schematic representation of the GI between tRNA-Asn and P9301_01461. The location and orientation of the genes flanking the GI are indicated by spotted and striped thick arrows, and the corresponding orthologs are indicated by the same pattern. Gray thick arrows indicate the genes (left to right: P9301_01431, P9301_01441, P9301_01451) within the GI. Direct repeats are indicated by thin arrows. Gray thick lines indicate homologous sequences. Seq.1, seq.2, and seq.3 indicate homologous sequences; (b) The analyses of similarities of seq.1, seq.2, and seq.3 using UPGMA method provided by MEGA 4.0. The scale is in nucleotide substitutions per site; (c) Schematic representation of the insertion of foreign genetic materials into host genome. DR: direct repeat; SSR: site-specific recombination