Sequencing of the coding region of this allele reveals no lesions, suggesting that it may harbor a mutation in a regulatory element.
ArkP46 mutants display severe defects during the spermatid individualization process. The cystic bulges are frequently reduced in size or appear flat due to a failure in the appropriate collection of the cytoplasm of the spermatids . The retained cytoplasm is clearly visualized as a trail along the entire length of what was supposed to have been the post-individualized portion of the spermatids. Frequently a large portion of the spermatid cytoplasm is retained in a 'mini' cystic bulge structure, which often contains part of the individualization complex. Waste bags are also reduced in size.
Selected as: a mutant that recessively suppresses the eye ablation phenotype caused by eye-specific overexpression of W.