Rooted neighbor-joining tree based on partial rpoB gene sequences (801 bp) showing the phylogenetic relationship of strain AK001 among all type strains of the genus Acinetobacter (n = 17) and further Acinetobacter culture collection strains exhibiting unique 16S rRNA gene sequences. The scale bar indicates the evolutionary distance between sequences determined by measuring the lengths of the horizontal lines connecting two organisms. Numbers at nodes (shown if ≥50% within the consensus phylogenetic tree) indicate percentages of bootstrap support based on a neighbor-joining analysis of 1,000 resampled data sets. Pseudomonas aeruginosa strain PAO1 was used for outgroup rooting. GenBank accession numbers of submitted sequences are in parentheses. Bar, 5% sequence divergence. T, type strain. CIP, Collection de l'Institut Pasteur, Paris, France; LMG, Belgian Coordinated Collections of Microorganisms, Ghent, Belgium.