Ufo1 mutants suppress mutant eye colour phenotype in wcrr mutants and enhance mutant eye colour phenotype in wsp1 mutants. Ufo1, MowEMS mutants suppress mutant eye colour phenotype in wcrr mutants and enhance mutant eye colour phenotype in wsp1 mutants. Ufo1, Wowunspecified mutants suppress mutant eye colour phenotype in wcrr mutants and enhance mutant eye colour phenotype in wsp1 mutants. Ufo1 reduces the suppression of PEV caused by Wowunspecified, MowEMS.