(A) PDS silencing in PTGS mutant progeny from the crosses, dcl4/PDSi, rdr6/PDSi and sgs3/PDSi. (B) PDS silencing in TGS mutant progeny from the crosses, nrpd1/PDSi, dcl3-1/PDSi, ago4-1/PDSi, drm1.2/PDSi, rdr2-1/PDSi, drd1/PDSi, nrpd2/PDSi and nrpe1/PDSi. Photographs were taken at two weeks after removing inducer. Scale bar = 1cm. Each genotype was labeled on top of picture. PDSi-un, without inducer treatment.