AGO1 and infection: The transcripts of dcl2 and ago1 of F. graminearum accumulate at lower levels after infection by Fusarium graminearum virus 1 (FgV1) than by FgV2 or FgV3, and AGO1 also involves the accumulation of virus-derived siRNAs (vsiRNAs) in FgV1-infected F. graminearum strain (Yu et al., 2018).