Description
Salivary glands or larval ovaries were isolated from transgenic flies expressing RNAi targeting Nautilus (control) or linker histone H1 using a Tub-Gal4 driver. Overall design: ~200 larvae were used to isolate salivary glands or ovaries, independently. Total RNA was isolated using Trizol reagent following manufacturer''s guidelines. Then 5 µg of total RNA was separated on a polyacrylamide gel, and 18-29 nt small RNAs were isolated for cloning.