Schematic representation of the rRNA operons and associated tRNA clusters of
. Operons are numbered from 1–12 in the order they appear in the genome sequence. 16S rRNA, 23S rRNA and 5S rRNA genes are indicated with white, grey and black arrow shapes, respectively. tRNAs are indicated by green arrow shapes. SNPs between the rRNA clusters of strains 630Δerm and 630 are indicated in red (for details see Additional file 1). Brackets indicate that operon 1 is unique to strain 630Δerm. A cluster of tRNAs that is found multiple times associated with rRNAs (tRNAAsn-tRNALeu-tRNAMet-tRNAGlu-tRNAGly-tRNAVal-tRNAAsp) is indicated in dark green. A = tRNAAla, L = tRNALeu, M = tRNAMet, G = tRNAGly, T = tRNAThr. Figure is approximately to scale.