Fig 1.

Neighbor-joining dendrograms showing the relationship of 77 study strains using B. petrii DSM 12804 as an outgroup. (A) Comparison based on concatenated sequences of atpD, icd, recA, rpoB, and tyrB (2,098 nt). MLSA clusters I to V are indicated. (B) Comparison based on 16S rRNA gene sequences (1,309 nt). ▲, environmental isolate; ●, non-CF clinical isolate; ○, CF isolate. Type strains are highlighted in bold. Bootstrap support of clusters is indicated to the left of the node. Scale bar, 0.01 substitutions per site.