Nucleic Acids Research, gkx1301, https://doi.org/10.1093/nar/gkx1301At the time of writing the authors were not aware of a recent publication by V. Raman et al. (62). The authors have identified a discrepancy in the numbering of the genes and wish to change the numbers of the genes in their article as described below:MoAGO1 (MGG 01294) should be MoAGO3MoAGO2 (MGG 14873) should be MoAGO1MoAGO3 (MGG 13617) should be MoAGO2The following sentence was added in the last paragraph of Results: Lack of MoAGO2 enhances gene silencing of the retrotransposon MAGGY and mycoviruses in : “Consistently, the level of PoOLV2 accumulation was elevated by the overexpression of MoAGO2". The corrections have been made in the published article and do not affect the results and overall conclusions of the work.In addition, the article now refers to the paper by V. Raman et al. (62) on page 3 in the first Results paragraph.