Figure 2: Phylogenies of Clade 1 and Clade 2 leucocoprineaceous fungi.
From: Symbiont fidelity and the origin of species in fungus-growing ants
(a) Clade 1 and (b) Clade 2. Phylogenies were generated by Bayesian analyses of ITS sequence for 183 and 123 taxa (138 and 69 unique genotypes, respectively). Ant-associated fungi (red branches), designated by associated ant species names and collection IDs, are concentrated in six main clades (A-G, coloured boxes). Within those clades, C. wheeleri group-associated fungi are concentrated in three sublineages (clades B, D and G) and, within those lineages, exclusively (clades B and G) or largely (clade D) in particular sublineages (darker coloured boxes). Red arrows in clades B and G indicate single widespread genotypes (number of ITS sequence-identical strains indicated in parentheses) that account for the great majority (64 of 70 in clade B; 49 of 82 in clade G) of observed associations. Coloured circles indicate posterior probabilities of clades, and small coloured labels indicate geographic localities (see legend). Fungal sequences listed in black were generated for this study; those listed in green result from prior studies.
