Eggs laid by cuff^WM25/cuff^QQ37 females show a variable ventralised phenotype.

The oocyte nucleus has defective morphology in 10-20% of stage 9 egg chambers in cuff^WM25/cuff^KG05951 females, often the DNA seems to localise to the periphery of the nucleus.

In newly eclosed cuff^WM25/cuff^KG05951 females, highly branched fusomes are observed in regions 1 and 2 of the germaria (as occurs in wild-type females). However, as the mutant females age, there is a sharp increase in the number of germaria without cysts that contain highly branched fusomes; 1 week after eclosion, 54% of the germaria do not have highly branched fusomes and 2 weeks after eclosion, 83% of the germaria do not have highly branched fusomes in the mutant females. The mutant cysts in older female appear to arrest in early stages in the germaria containing spectrosome-like structures. In addition, the overall morphology of germline cysts in region 2b and/or region 3 of the germaria is also disrupted in cuff^WM25/cuff^KG05951 females; 1 week after eclosion, 72% of the germaria do not have cysts of normal morphology and 2 weeks after eclosion, 84% of the germaria do not have cysts of normal morphology.