Homozygote wild type at 14oC and 26oC. ci+2/Df(4)M101-1 wild type at 26oC; shows some thinning and interruption of L4 at 14oC. ci+2/ci wild type at 26oC; at 14oC, fewer flies show thinning or interruption of L4 than ci+C/ci. ci+2/ciW shows significantly greater amount of thinning and interruption of L4 than ci+C/ciW. RK3.
Arose on: ey2.
Relative strengths of wild-type isoalleles are ci+C > ci+5 > ci+3 > ci+2.