Phylogenetic tree of acu-5/FacA homologs in several fungal species. The alignment was performed with ClustalW, and the MEGA program, version 4.0, was used to perform a 1,000-bootstrap phylogenetic analysis using the neighbor joining method. Fv, F. verticillioides; Fo, F. oxysporum; Gz, G. zeae; Nc, N. crassa; An, A. nidulans; Mo, M. oryzae; and Sc, S. cerevisiae.