Table 1.

Hsp90 Transcript Knockdown Levels in C. briggsae Carrying Cel-sid-2 and fed E. coli Expressing daf-21 dsRNA^a

Strain	Transgenic F1	Transgenic F2	% RNAi Knockdown in F4 Transformantsa
AF16	18/22	10/22	88 ± 4
DH1300	7/25	4/25	84 ± 3

^aThe extent of RNAi-mediated knockdown of daf-21 transcripts was calculated relative to the expression levels of worms fed E. coli carrying the empty vector pL4440. The values represent the means and standard errors of 3 replicates of 10 pooled worms. The number of worms depicted are those expressing DsRed in the F1 and F2 worms, relative to the number of surviving injectants.