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(a and b) Phylogenetic trees obtained with tuf gene sequences (a) and recA gene sequences (b). The scale indicates a genetic distances of 2%. (c and d) Alignment showing the sequence signatures for the tuf gene sequences (c) and recA gene sequences (d). Sequence signatures are shaded in black; residues shaded in light grey have ≤75% identity, while residues in dark grey have ≥76% identity.
