Identification of the genes affecting the regulation of riboflavin synthesis in the flavinogenic yeast Pichia guilliermondii using insertion mutagenesis. - Boretsky YR; Pynyaha YV; Boretsky VY; Fedorovych DV; Fayura LR; Protchenko O; Philpott CC; Sibirny AA (FEMS yeast research, 2011)