Homozygous cd1 mutant flies show increased levels of 3-hydroxykynurenine (3-HK) compared to controls. No rhabdomere degeneration is seen in homozygous cd1 mutant flies.
Mutant flies show a significant reduction in ommochrome pigment levels compared to wild type.
Eye colour: pale brown. Ocellus colour: white. Eyes are pale brown. Blocks pigmentation of the secondary pigment cells and causes excessive pigmentation of the primary pigment cells.
Accumulates a blue-fluorescent compound termed cardinalic acid (xantherenic acid 8-O-β-O-glucoside).
Phenoxazinone synthetase activity about 39% wild type; accumulates 3-hydroxykinurenine.
Drosopterin content of eyes about 85% normal.
Eye color autonomous in transplant of larval optic disk into wild type, ca, cn, st, or vlarval host.
Eye colour: yellowish vermilion, darkening to wild-type with age. Ocellus colour: white; not darkening with age. Malpighian tubule colour: bright yellow; not distinguishable from wild type. RK2.