FlyBase curator comment: this entry is used to capture phenotypic information when the particular allele (or allele combination) used by the author could not be determined but the context of the experiment suggests that the phenotype being described is some kind of loss of function.
Programmed cell death of primordial germ cells (PGCs), which is essentially complete by stage 12 of embryogenesis in wild type, is disrupted in mutant embryos; the total average number of PGCs is normal in the mutants at stage 10, but although there is a gradual reduction in the number of PGCs, it is decreased compared to wild type, such that at stage 14 the average number of PGCs is higher in the mutant embryos compared to wild type.
