Figure 2. Phylogenetic relationships of the Bartonella spp. genotypes based on partial sequences of the citrate synthase gene detected in bats from Guatemala, Kenya, United Kingdom, and some reference Bartonella spp. The phylogenetic tree was constructed by the neighbor-joining method, and bootstrap values were calculated with 1,000 replicates. A total of 21 Bartonella genotypes, forming 13 Bartonella phylogroups, were identified in the bats from Guatemala. Each genotype is indicated by its GenBank accession number in boldface; the phylogroups are marked by Roman numerals I–XIII.