Phylogenetic relationships among different isolates belonging to the Ustilaginomycetes and their plant hosts. The consensus trees are generated with parsimony analysis in PAUP. Refer to TreeBASE study accession number S430. Outgroups are indicated by asterisks and numbers in bold above nodes refer to bootstrap values in percent; numbers below branches indicate the number of character changes between branches (branch lengths not to scale). Following the fungal species name, the major known Graminaceous host(s) is given in parentheses. The tree on top is based on ITS sequence alignments (CI = 0.924, RI = 0.890, tree length = 542). The tree in the middle is based on AFLP data (CI = 0.732, RI = 0.700, tree length = 250). At the bottom, a tree showing a tentative phylogeny of some Graminaceous hosts, improvised from literature data, is depicted. Note that sorghum and maize can both be hosts of U. scitaminea upon experimental inoculation procedures. See Bakkeren et al. 2000.