Genes of B. australis belonging to the 22 protein familiesa that are novel in Bartonella and retained in all genomes examined here.

aWith protein families, we mean families of homologous proteins as identified during the clustering of all CDSs in the 16 Bartonella genomes and the outgroup species. Some families contain proteins encoded by single-copy genes whereas other families are larger and contain several paralogous proteins.bLocus tags for genes located in clusters in BaGTA or ROR are marked in bold.