FIG. 4.

Fungal decision tree analysis. The decision tree describing the separation of bHLH fungal groups F1–F12 by amino acid sites found in the bHLH domain. Each box of the figure represents a step in the decision tree which consist of a number of bHLH sequences from each fungal group and the amino acids at a given bHLH position (state). The sample size and proportion of group representatives is provided in the accompanying table. Diamonds contain the bHLH amino acid site that bifurcate the data into subsets of the previous state.