ELT-2, ELT-4, and SWI/SNF promote longevity by regulating daf-16 gene expression. (A-D) elt-2 and swsn-1 RNAi were started at the L4 stage. (E-H) elt-4 and swsn-2.1 RNAi were started at the L1 stage (hatching). Lifespan analyses of daf-2(e1370) (A, E), daf-16(mgDf50); daf-2(e1370) (B, F), daf-16(mgDf50); daf-2(e1370); daf-16a::gfp (C, G), and daf-16(mgDf50); daf-2(e1370); daf-16d/f::gfp (D, H). One of three repeats is shown; each with similar results. All lifespan data are summarized in Additional file 1: Table S6.