Figure 2. Phylogeny of Rhinosporidium seeberi and the DRIPs clade of protists (Ichthyosporea). A. Phylogenetic tree inferred from the 18S rDNA sequences of R. seeberi and other selected eukaryotes by using a maximum likelihood algorithm; 1,350 masked positions were used for analysis. Bootstrap values were generated from 100 resamplings. The bar, which represents 0.1 base changes per nucleotide position, is a measure of evolutionary distance. B. Phylogenetic tree using the data from A, but with pruning and grouping to show the broader evolutionary position of the DRIPs clade.