Homozygous mutant mosaic egg chambers display severe border cell migration defects. Border cells frequently fail to penetrate into the nurse cell clusters and can be found at the anterior tip or along the sides of the egg chamber. Alternatively the cells migrate partially, but fail top reach the oocyte by stage 10.
Stat92E80A7 fails to complement Stat92E397, Stat92E56D3 and Stat92E85C9 with respect to lethality.