Figure 5.

Small RNAs associated with silencing of MuDR by Muk. (A) An illustration of MuDR and Muk showing the regions shared by both. The gap in Muk indicates the region of MuDR that is missing in Muk. Genes mudrA and mudrB are as indicated. These models are aligned with the small RNAs illustrated in B and C. (B) A representation of perfectly matched small RNAs from tissues of various genotypes mapped onto MuDR. Small RNAs are color coded for size, as indicated. Note that small RNA samples from plants containing only MuDR or neither MuDR nor Muk have very few small RNAs matching MuDR. F₁ leaf 2 and F₁ leaf 6 refer to leaves 2 and 6 of plants that carry both MuDR(p1) and Muk in the first generation. (C) Small RNAs with exact matches to the first 250 bp of MuDR (data are taken from F₁ plants). (D) Numbers of perfect matches to MuDR of the indicated size classes in the indicated genotypes.