Probably arose by the insertion and subsequent deletion of a P-element. 2.6kb deletion breaks in the ca transcription unit, removing its 5' section, and extends into ncd.
no P element insert
abnormal eye color | recessive
eye
pigment cell
Eye colour: claret.
mutant for ncd
cand1
ca1
The claret eye colour arose in the second generation after hybrid dysgenesis.
The claret eye colour arose in the second generation after hybrid dysgenesis.