Drosophila melanogaster c306 GAL4 is not specific to ovarian cells

A widely used genetic tool in Drosophila melanogaster is the GAL4/UAS system. This bipartite system allows for tissue and cell-specific expression and is used for both overexpression and RNA interference (RNAi) knockdown studies. Here we provide evidence that c306 GAL4 expression is not restricted to somatic ovarian cells but is also expressed in cells giving rise to adult bristles. Future work is needed to fully define the cell-specific expression pattern c306 GAL4.