Top 50 sequenced bacteria

Combining the NCBI complete and incomplete genome project databases as of 4/4/2011:

    346 Escherichia coli
    206 Staphylococcus aureus
    183 Helicobacter pylori
    148 Vibrio cholerae
    142 Salmonella enterica
     96 Streptococcus pneumoniae
     94 Yersinia pestis
     83 Mycobacterium tuberculosis
     77 Leptospira interrogans
     73 Propionibacterium acnes
     73 Enterococcus faecalis
     68 Staphylococcus epidermidis
     67 Acinetobacter baumannii
     60 Streptococcus mutans
     53 Bacillus cereus
     50 Chlamydia trachomatis
     42 Brucella melitensis
     38 Pseudomonas syringae
     35 Brucella suis
     32 Listeria monocytogenes
     30 Haemophilus influenzae
     29 Neisseria meningitidis
     29 Enterococcus faecium
     29 Clostridium difficile
     28 Mycobacterium abscessus
     25 Campylobacter jejuni
     25 Burkholderia pseudomallei
     25 Bacillus thuringiensis
     25 Bacillus anthracis
     24 Methanobrevibacter smithii
     24 Clostridium botulinum
     24 Brucella abortus
     24 Bacteroides sp.
     23 Synechococcus sp.
     23 Streptococcus pyogenes
     23 Shigella flexneri
     22 Streptococcus sanguinis
     22 Francisella tularensis
     21 Bacillus subtilis
     20 Lactobacillus crispatus
     18 Pseudomonas aeruginosa
     18 Actinobacillus pleuropneumoniae
     17 Treponema denticola
     17 Neisseria gonorrhoeae
     17 Lachnospiraceae bacterium
     16 Borrelia burgdorferi
     15 Wolbachia endosymbiont
     15 Lactobacillus iners
     15 Lactobacillus gasseri
     15 Fusobacterium sp.

Make your own:

cat complete.txt incomplete.txt | cut -f 4 | cut -d " " -f 1,2 | sort | uniq -c | sort -r | head -50