Homozygous mutant egg chambers exhibit a progressive collapse of endochorion. Electron dense aggregates accumulate between the follicle cells and the inner chorionic and vitelline membrane layers. As egg chamber development progresses, the electron dense aggregates coalesce into a continuous layer. Eventually, small aggregates of electron dense endochorionic material become dispersed throughout the vitelline membrane layer. Clumped endochorionic material is also observed in the interior of the dorsal appendages. In dec-1²⁹/dec-1^ct4b1 mutant egg chambers the endochorion appears as a continuous electron dense layer in close association with the inner chorionic layer. Electron dense aggregates are not observed in the underlying vitelline membrane. However aggregates are observed within the vitelline membrane near the base of the dorsal appendages. Clumped endochorionic material is also observed in the interior of the dorsal appendages.

protein products absent

dec²⁹ has female sterile phenotype, suppressible by dec::Dvir\dec^cBa

dec²⁹ has female sterile phenotype, suppressible by Dyak\dec^+t11