SETD1A and cyst: At 7 days post-eclosion, the hub size and number of cyst cells in the nos-Gal4ΔVP16, bam-Gal80>set1 RNAi testes were comparable to those in nos-Gal4ΔVP16, bam-Gal80>Control RNAi testes (Fig. S4C′,C′′).