chnk04218 homozygous mutant clones in the eye have normal morphology at 1 day old and then show retinal degeneration, and ERG recordings show a small response.
Homozygous embryos exhibit neurons that are slightly larger than wild type and the lateral chordotonal (Lch) neurons are bunched.
I. Kiss.
P{lacW} insertion can be excised and revert the lethal phenotype to wild type.