Frameshift allele resulting in a truncated protein.
viable (with moonFS1-Δ1)
moonFS2-Δ28/moonFS1-Δ1 transheterozygotes are viable, their ovaries have an apparently normal morphology, but are sterile.
moonFS2-Δ28/moonFS1-Δ1 has sterile phenotype, suppressible | partially by delnanos.VHH(GFP4)/Trf2s.nanos.LAP
The female sterility of moonFS1-Δ1/moonFS2-Δ28 transheterozygotes is partially suppressed by the combination of delnos.T:Zzzz\vhhGFP4 and Trf2s.nos.LAP, as the great majority of embryos undergo gastrulation and only about a third hatch into larva.