Figure 4.

Large-scale comparison of RNAi by feeding versus injection. The first 1,200 predicted genes from chromosome I were screened by feeding [21]. Those genes with a phenotype were subjected to RNAi by injection, and results obtained by the two methods were compared according to phenotypic class - embryonic lethal (Emb), sterile (Ste), or post-embryonic (PostEmb; see the Materials and methods section for scoring criteria). Data shown compare results from three worms subjected to RNAi by feeding or injection.