CYP20A1 and infection: Significantly downregulated genes included two genes related to the production of fungal toxins during the infection process, including a sterigmatocystin 8-O-methyltransferase (FGSG_04596) and a gene related to isotrichodermin C15 hydroxylase (FGSG_04590), a cytochrome P450 monooxygenase CYP65A1 which has been previously described to be a part of a C16 gene cluster that is involved in terpenoid biosynthesis.