We found three DCL proteins, three AGO proteins, and three RDRP proteins in A. flavus, and AfPV1 infection upregulated DCL1, DCL2, DCL3, AGO1, AGO2, AGO3, RDRP1, and RDRP3, but did not affect RDRP2 (Figure 2). The gene discussed is AGO1; the disease is infection.