
Transitive RNAi moves 5′ to 3′. dsRNA homologous to full-length, 5′, 3′, or middle of GFP was used to initiate RNAi in worms carrying one of five transgenes: PG txg, GPtxg, pha-4::GFP, tlf-1::GFP, or pGFP. (*) Effects of GFP-FL for pha-4::GFP, tlf-1::GFP, and pGFP worms are from Figure 1.










