Embryos derived from fafB4
females mated to wild-type males show significant ventralisation of the cuticle, with a herniated head, defective Filzkorper, malformed dorsal cuticle and extended denticle belts.
flies have facets with more than the wild-type number of photoreceptor cell and an abnormal number of cone cells.
and homozygous adults exhibit nearly wild type eyes with a smooth exterior.
Most facets of homozygotes and transheterozygotes with fafFO8
contain more than the normal complement of 8 photoreceptor cells, many facets have extra R7 cells and a small proportion have missing R7 cells.
Mutation causes no significant alteration to the variegated eye phenotype of In(1)wm4h
Eyes roughened due to abnormalities in the hexagonal facet array: but only 1% of facets are affected. Ovaries of homozygous females are normal in appearance but the embryos produced never form syncytial blastoderm and all fail to hatch.