Embryos laid by heterozygous females are moderately ventralised; ventral denticle bands are expanded, dorsolaterally derived structures such as the filzkorper are reduced or absent and the dorsal hairs are almost completely missing. The embryos have head deformities. At gastrulation, embryos laid by mutant females invaginate an apparently normal ventral furrow, but initiation of the lateral cephalic furrow is shifted to a more dorsal position and fewer dorsal folds are formed than normal. Embryos laid by ea^D10/Df(3R)ea-5022rx1 females are virtually indistinguishable from embryos laid by ea^D10/+ females.

ea⁴/ea^D10 larvae have a wild-type level of muscle defects.

Embryos moderately ventralized.

Female viability is reduced and male fertility is not reduced. Embryos exhibit ventralised phenotype.