E(ftz)723[+]/E(ftz)723723 is an enhancer of partially lethal | heat sensitive phenotype of ftz5/ftz13
E(ftz)723[+]/E(ftz)723723 is an enhancer of embryonic segment phenotype of ftz5/ftz13
E(ftz)723723 dominantly enhances the lethality of ftz5/ftz13 animals at 26.5oC (fewer animals survive to adulthood). This interaction is a zygotic effect, with weak or no maternal effect. E(ftz)723723 dominantly enhances the segmentation defects seen in ftz5/ftz13 embryos at 27.5oC; 91.9% of the embryos have segment defects and 32.5% have at least 3 ftz-dependent segments affected.