Homozygotes have ectopic wing vein material between the L1 and L2 veins.
Wings from fjd1 homozygotes are shortened - specifically the region between the anterior and the posterior crossvein is significantly reduced, whilst the proximal wing regions are unaffected. Wings often contain ectopic wing vein material. Homozygous mutant animals have shorter and "dumpier" abdominal regions than wild-type. Abdomens are about 221 μm at the dorsal midline compared to about 261 μm in wild-type.
Legs are shorter than wild type with four instead of five tarsal segments. The wing is reduced in length. Eye surface is deformed, though this phenotype is only evident for stronger alleles and has variable penetrance and expressivity.
Adding fjp1/fjd1 has little effect on the wing area of dsUAO71/ds38k flies.
Adding fjp1/fjd1 dramatically reduces the wing area of flies expressing dsAct5C.T:Avic\GFP-EGFP in a dsUAO71/ds38k background.
Adding fjp1/fjd1 has no effect on the wing area of flies expressing dsSAx3.Act5C.T:Avic\GFP-EGFP in a dsUAO71/ds38k background.
Adding fjp1/fjd1 has no effect on the wing area of flies expressing dsSDx3.Act5C.T:Avic\GFP-EGFP in a dsUAO71/ds38k background.
Δ2-3-induced excision of the P{lacW} can be accompanied by reversion of the mutant phenotype.