Complementation of cell fusion gene deletion mutations with wild-type copies of cell fusion genes. (Top) Conidiation patterns of the ham-6, ham-7, ham-8, and amph-1 mutants grown for 72 h on Vogel's sucrose medium. (Bottom) Transformants of these mutants (ham-6T, ham-7T, ham-8T, and amph-1T) in which a wild-type copy of the cell fusion gene complements the mutant conidiation pattern phenotype.