FlyBase curator comment: this entry is used to capture phenotypic information when the particular allele (or allele combination) used by the author could not be determined but the context of the experiment suggests that the phenotype being described is some kind of loss of function.
Adult eyes in which all photoreceptor cells are homozygous for SdhAunspecified are outwardly indistinguishable from wild-type controls. Photoreceptor cell synaptic terminals are formed in the mutant eyes, but they degenerate progressively in the late pupal and adult stages.
