Weiberg et al. (2013) previously reported that siRNAs encoded by B. cinerea can hijack plant immunity by suppressing the expression of host AGO1. In the present study, AGO1 was up-regulated in two miR394 overexpression lines compared to WT under mock infection (Figure 7B), suggesting a positive effect of miR394 on AGO1 expression. The gene discussed is AGO1; the disease is infection.