Wild-type females mated to wild-type males and then remated with tud^unspecified males have a reduced egg hatch rate shortly after the remating (compared to females remated with the wild-type males).

Eggs derived from homozygous females generally show a "grandchildless knirps-like" phenotype; they lack polar granules and pole cells and show deletions of abdominal segments similar to that seen in kni mutant embryos. Approximately 30% of embryos survive and grow into sterile adults.

Embryos derived from tud^unspecified mutant females lack pole plasm and pole cells. Abdominal segmentation is defective. Escapers may hatch and develop into sterile adults.