Nematode growth media (NGM) was used to maintain C. elegans
with OP50 Escherichia coli at 20 °C. Thewild type strainwas N2 (Bristol)
and the mutant strain used in this study was CB1370 daf-2 (e1370).
Feeding RNAi was performed on NGM plates supplemented with
100 μg/ml ampicillin and 2 mM isopropyl-β-D-thiogalactopyranoside
(IPTG) with the E. coli strain HT115 [23]. All HT115 strains containing
RNAi constructs were sequence verified using Sanger sequencing with
the primer TV10, CTGATTCTGTGGATAACCGTATAC. To grow large, synchronous
populations of worms, we employed C. elegans liquid culture
following standard protocols and using concentrated OP50 E. coli