Deletion of most of the und coding sequence.
Mutants show a L5 shortening phenotype similar to that of zf30C alleles.
undΔ18/undΔ34 hemizygotes have a roughened eye. There are fewer ommatidia in the ventral half of the eye than in the dorsal half. There is a defect in wing vein L5 where it contacts the wing margin; frequently the vein is branched with extra vein material and occasionally it fails to reach the margin. Homozygous clones in the eye are much smaller than wild-type control clones.
undΔ34/Df(2L)30A-C is rescued by und+t4.3
Complements: zf30Ck02506. Complements: zf30CEP518. Complements: zf30CEP2228.