Fig. 4.

The analytical procedure encompassed 20 nucleotide sequences. The pairwise deletion option was applied to all ambiguous positions for each sequence pair resulting in a final data set comprising 1,636 positions. Evolutionary analyses were conducted in MEGA12 utilizing up to 7 parallel computing threads. The bootstrap values (%) are displayed next to the clades, and the accession numbers are indicated before the strain names. The tree was rooted to Aeromonas hydrophila as the outgroup. The bootstrap values (given as a percentage of 1000 replicates) are displayed at each branch nod (scale bar = 0.02 substitutions per nucleotide)