Polytene chromosomes normal.
visible
eye
Eyes of SX astX/+ + slightly smaller than S1/+; L2 occasionally interrupted distally; resembles S1 +/+ astX except for L2 abnormality. RK1.
SX, astX has visible | dominant phenotype
SX, astX has eye phenotype
SX, astX has wing vein L2 phenotype
SX astX/+ flies occasionally have gaps near the tip of the second longitudinal vein and have slightly smaller eyes than S1/+ flies.
Induced with: astX.