FIG 6 .

Phylogenetic tree of blpA sequences in genome sequenced strains and South African isolates. (A) Phylogenetic tree of 500 bp of blpA sequence flanking the repeat region determined by the neighbor-joining method (25) after removal of the repeat sequence. Partitions reproduced in less than 25% of bootstrap replicates are collapsed. Percentages of replicate trees in which taxa cluster together in the bootstrap test are shown next to branches. Repeat-containing strains are designated by circles; isolates without the repeat are designated by squares. Pherotypes are designated by colors, as follows: P164, blue; R6, red; 6A, green; TIGR4, black; and P155, yellow. (B) Phylogenetic tree of 500 bp at the 3′ end of the blpA open reading frame analyzed as in panel A. (C) Representation of the regions of blpA analyzed in panels A and B drawn to scale. The small arrow designates the location of the repeat sequence.