Genomic inter-/intraspecies diversity among B. pseudocatenulatum and B. catenulatum strains with reference to the B. pseudocatenulatum strain DSM20438 genome as identified by CGH assays. (a) Obtained CGH data. Each row corresponds to a probe on the array, and genes are ordered vertically according to their position on the DSM20438 genome. Columns represent analyzed strains, which are identified by their code numbers. The color code, which goes from black to yellow to indicate the presence (black), divergence, or absence (yellow) of a gene sequence, is given near the bottom. The predicted functions of some relevant genes are shown in the right-hand margin. Ori, origin of replication; Ter, terminus of replication. (b) CGH-based clustering data. A CGH-based clustering analysis was performed for the four B. pseudocatenulatum and six B. catenulatum strains analyzed.