FIG. 2.

Neighbor-joining trees comparing the taxonomic relationships of representatives of P. acnes types IA, IB, II, and III determined by analysis of a partial recA sequence and the concatenated partial sequences of 6 putative virulence determinants. Bootstrap values are indicated at the corresponding nodes. J165 and SK137 type are IA, SK187 and KPA171202 are type IB, and J139 is type II by recA sequencing. The phylotype of the isolates recovered in this study is denoted by the first letters of the strain name (1A [for type IA], 1B [for type IB], II, or III). Bars, 0.002 or 0.0005 substitution per site.