INTACT nuclei were typically prepared from 100 to 500 frozen fly heads. TAPIN nuclei were prepared from 100 to 3000 frozen fly heads.
Nuclear RNA was DNAse I treated, purified, and amplified and the cDNA was then blunted and ligated to barcoded linkers.
RNA-seq libraries were sequenced on an Illumina Hiseq 2500 to 50-bp read length.