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Table 3 Membership composition of Tryptophan Congruency Groupsa

From: Inter-genomic displacement via lateral gene transfer of bacterial trp operons in an overall context of vertical genealogy

TCG-1 [Corynebacterium diptheriae]b
  [Corynebacterium glutamicum] b
  Escherichia coli
  Haemophilus influenzae
  [Helicobacter pylori ] b
  Shewanella putrefaciens
  Vibrio cholerae
  Actinobacillus actinomycetemcomitans
  Buchnera aphidicola c
  Blochmannia floridanus c
  [Corynebacterium efficiens]b
  Erwinia carotovora
  Klebsiella pneumoniae
  Pasteurella multocida
  Photorhabdus luminescens
  Salmonella enterica
  Shigella flexneri
  Vibrio parahaemolyticus
  Vibrio vulnificus
  Yersinia pestis
TCG-2 d Burkholderia fungorum
  Methylococcus capsulatus
  Neisseria meningitidis
  Nitrosomonas europaea
  Pseudomonas aeruginosa*
  Pseudomonas syringae*
  Ralstonia metallidurans
  Thiobacillus ferrooxidans
  Xanthomonas campestris
  Xylella fastidiosa
  Acinetobacter sp.
  Azotobacter vinelandii*
  Bordetella bronchisepticum
  Bordetella parapertussis
  Bordetella pertussis
  Burkholderia cepacia
  Burkholderia multivorans
  Chromobacterium violaceum
  Microbulbifer degradans
  Neisseria gonorrhoeae
  Pseudomonas fluorescens*
  Pseudomonas putida*
  Psychrobacter sp.
  Ralstonia solanacearum
  Xanthomonas axonopodis
TCG-3 Caulobacter crescentus
  Rhodobacter sphaeroides
  Sphingomonas aromaticivorans
  Agrobacterium tumefaciens
  Bradyrhizobium japonicum
  Brucella melitensis
  Brucella suis
  Rhizobium loti
  Rhodopseudomonas palustris
  Sinorhizobium meliloti
TCG-4 Anabaena (Nostoc) sp. PCC 7120
  Nostoc punctiforme
  Prochlorococcus marinus CCMP 1986 (MED4)
  Synechococcus sp. WH8102
  Synechocystis sp. PCC 6803
  Anabaena variabilis ATCC 29413
  Crocosphaera watsonii WH 8501
  Gloeobacter violaceus PCC 2471
  Prochlorococcus marinus CCMP1375 (SS120)
  Prochlorococcus marinus MIT9313
  Synechococcus elongatus PCC 7942
  Thermosynechococcus elongatus BP-1
  Tricodesmium erythraeum
TCG-5 e Streptomyces coelicolor
  Mycobacterium tuberculosis
  Thermomonospora fusca
  Bifidobacterium longum
  Mycobacterium avium
  Mycobacterium bovis
  Mycobacterium leprae
  Mycobacterium smegmatis
  Streptomyces avermitilis
TCG-6 Bacillus halodurans
  Bacillus stearothermophilus
  Bacillus subtilis
  Oceanobacillus iheyensis
TCG-7 Bacillus anthracis
  Lactococcus lactis
  Listeria monocytogenes
  Staphylococcus aureus
  Streptococcus pneumoniae
  Bacillus cereus
  Listeria innocua
  Staphylococcus epidermidis
  Streptococcus gordonii
  Streptococcus mutans
  1. aEach tryptophan congruency group (TCG) defined by the concatenated tree for Trp proteins (Fig. 2) is congruent with the color-coded subtree section within the 16S rRNA tree (Fig. 1). Organisms that are included in the concatenated tree of Fig. 2 are indicated in boldface type, whereas additional organisms not included in the concatenated tree but that were qualitatively determined to belong to a given TCG are indicated in regular type. bTCG members originating by LGT are indicated within brackets and indented. cInsect symbionts. dThe five organisms marked with asterisks form a distinctive subclade that is, in fact, not a "pure" component of TCG-2 because of the LGT origins of trpEa and trpEb from TCG-3 (see text). eAll members of TCG-5 lack trpC and presumably utilize a dual-pathway hisA (priA) for this function.