Regions missing from B. koehlerae in the B. henselae prophage, the genomic islands HGIa, HGIb, and HGIc (left panel) and the chromosome II-like region (chrII) (right panel). Both panels show, from the top: repeat number of B. henselae sequences (the number at which each sequence occurs in the genome with more than 80% sequence identity over 100 bp); the B. henselae genes on “+” and “−” strands (green, annotated gene; pink, hypothetical conserved; yellow, Bartonella specific); expected array results for B. quintana (red, absent [<75% identity]; blue, present [>75% identity]); obtained array results for B. quintana (red, absent [M < −2]; blue, present [M > −2]); and obtained array results for B. koehlerae (red, absent [M < −2.7]; blue, present [M > −2.7]; pink, uncertain [M between −2.7 and −2]). In the right panel, the gene order in B. quintana is shown above the B. henselae genes. Orthologous sequences are highlighted by vertical lines between genes in B. henselae and B. quintana. Triangles show the position of tRNA genes and rhombi the position of integrase genes.