FIG. 1.

Phylogenetic tree of Bartonella species based on the combined gltA, rpoB, ftsZ, and ITS sequence alignments. The cluster with dog 318006, the human-associated Bartonella sp., dog 131, and Fox 008 represents the “B. rochalimae” group. The tree shown is a neighbor-joining tree based on the Kimura two-parameter model of nucleotide substitution. Bootstrap values are based on 1,000 replicates. The human-associated Bartonella sp. has been designated “B. rochalimae.” The analysis provided tree topology only, and the lengths of the vertical and horizontal lines are not significant.