TABLE 1.
Strains used in this study
| Strain | Source | Genotypesa | Lineageb | Presence of genomic region XIIc |
|---|---|---|---|---|
| JY1701 | Environmental | A, E | II | − |
| JY1305 | Environmental | A, E | II | − |
| SS108-A3A | Environmental | A, E | II | − |
| Env1 | Environmental | A, E | II | − |
| CMCP6 | Clinical | B, C | I | + |
| YJ016 | Clinical | B, C | I | + |
| M06-24 | Clinical | B, C | I | + |
| C7184d | Clinical | B, C | I | + |
| C7184ΩAe | pilA mutant | B, C | I | + |
| C7184ΩDe | pilD mutant | B, C | I | + |
a
Genotype groupings according to polymorphisms within the 16S rRNA (8) and virulence-correlated (7) genes, respectively.
b
Lineage groupings based on multilocus sequence typing analysis of six housekeeping genes (9).
c
+ or − indicates the respective presence or absence of the 33-kb genomic island (region XII) (9).
d
Parental wild-type strain of type IV pilus mutants.
e
Type IV pilin mutants were kindly provided by Rohinee Paranjpye of the NOAA Northwest Fisheries Science Center (Seattle, WA).