Analysis of the divergent sequences found by SSH. a The distribution of the divergent sequences among strains obtained in the BLAST+ analysis is shown. Identity (ID) profiles correspond to contigs which exhibit the same distribution among the different bacteria. Shaded squares indicate that the corresponding contig was totally or partially identical to a sequence present in the bacterium concerned. Highlighted squares identify the first entry in the BLAST results, corresponding to the sequence for which identity was the highest. The number of the contigs included in the different ID profiles is defined in additional file 3. b The most representative functions associated with the divergent sequences identified are plotted.