Expression of Fer1HCH^GD16271 under the control of Scer\GAL4^Lsp2.3.1 (using tub-Gal80[ts] to limit expression to adulthood) does not induce cell death in either germaria or vitellogenic stage follicles and while it does not affect the proliferation of the germline stem cells it leads to significant increase in the rate of their loss over time.

Expression under the control of Scer\GAL4^Mef2.PR results in late pupal lethality.

Expression under the control of Scer\GAL4^pnr-MD237 may result in semi-lethality, depending on the insertion line used.

Expression under the control of Scer\GAL4^pnr-MD237 results in bristle morphology defects on the notum in 50-60% or 80-90% of the Scer\GAL4^pnr-MD237 expression domain, depending on the insertion line used.

Expression under the control of Scer\GAL4^pnr-MD237 results in the absence of 20-30% or 50-60% of the Scer\GAL4^pnr-MD237-expressing area of the notum, depending on the insertion line used.