Bayesian phylogeny of 18 unique haplotypes of D. giganteum. Isolates QSgi11, QSgi14, and QSgi15 are not shown due to uncertainty on their haplotype assignment, but all could belong to either haplotype number 14 or 15. QSgi15 could also belong to haplotype 12. Published sequences of D. citrinum and D. discoideum served as outgroups. Nodes with posterior probabilities below 50% are not shown. Symbols refer to geographical locations of isolates. Inset shows genetic distances between haplotypes.