In the larval eye-antennal disc, sqa^f01512 mutant clones at the A1 and Ar epithelial folds show reduced folding, and larger clones exhibit apical swelling and/or delamination, as compared to control clones. Clones that span the A1 fold show a breakdown of the field boundary at the A1 fold. Adult heads with sqa^f01512 clones show mislocalized ommatidia in head cuticle and antennae, and antennal-like tissue at the borders of compound eyes, in contrast to controls.

sqa^f01512 mutant adults occasionally show necrotic scar-like cells on the head, in contrast to controls.

PKD^cl4, sqa^f01512 has partially lethal - majority live phenotype