At 7 days post eclosion, the hub size and number of cyst cells in the nos-Gal4ΔVP16, bam-Gal80>set1 RNAi testes are comparable to those in nos-Gal4ΔVP16, bam-Gal80>Control RNAi testes (Fig. S3C’ and S3C’’). This evidence concerns the gene SETD1A and cyst.