TABLE 2.

Strains of the same bacterial species with different numbers of rrn operonsa

Microorganism namePhylogenetic affiliationNo. of rrn operon copies
Borrelia burgdorferiSpirochaetales1 and 2
Chlamydia trachomatisChlamydiae1 and 2
Rhodococcus fasciansActinomycetales4 and 5
Rhodopseudomonas palustrisAlpha proteobacteria1 and 2
Bradyrhizobium japonicumAlpha proteobacteria1 and 2
Vibrio parahaemolyticusGamma proteobacteria9 and 11
Vibrio choleraeGamma proteobacteria7, 8, and 9
Pasteurella multocidaGamma proteobacteria5 and 6
Yersinia pestisGamma proteobacteria6 and 7
Bacillus subtilisFirmicutes9 and 10
Bacillus anthracisFirmicutes10 and 11
Bacillus cereusFirmicutes9, 12, and 13
Staphylococcus aureusFirmicutes5 and 6
Enterococcus faeciumFirmicutes5 and 6
Streptococcus agalactiaeFirmicutes6 and 7
Streptococcus pyogenesFirmicutes5 and 6