FIG. 2.

Polymorphic sites in each of the five gene fragments studied. Each of the sites where the sequence of one or more of the genes differs from a putative consensus sequence is shown (only sites that differ are shown; sites that are identical to those in the consensus sequence are indicated by periods). The number of strains possessing the allele is indicated in parentheses. Numbering of the polymorphic sites (vertical format) is from the first nucleotide position of the corresponding gene. Asterisks indicate informative polymorphic sites.