Fig. 2.

Phylogenetic relationships of amino acid sequences inferred from the 60 kilodalton glycoprotein (gp60) gene (286 amino acids) for selected Cryptosporidium taxa in relation to the novel C. viatorum subtype using the neighbor joining distance method. Individual GenBank accession numbers precede species name, followed by host common name and locality descriptors. Bootstrap support values (based on 2000 iterations) are indicated next to supported branches. Cryptosporidium sp. chipmunk genotype was chosen as the outgroup. The novel subtype from this study is in bold type. Scale bar indicates the number of amino acid changes per site.