Figure 5.

Estimated number of introns per kilobase in CORs through fungal history using the EREM method. Numbers in ovals give estimated ancestral values normalized by the total number of aligned bases in the CORs (4.15 Mb). Numbers in black boxes represent the node number references in the tables in Additional data files 4 and 5. Blue branches indicate two or more estimated losses for each estimated gain; red > 1.5 gains per loss. (a) Summarized fungal tree. Triangles indicate clades, with values for the clade ancestor indicated. (b) Introns per kilobase through Euascomycota history, the clade indicated by the grey box in (a).