Germ cells from Jafrac1f08066 mutant mothers are left outside of the midgut during gastrulation. 25% of embryos from mothers homozygous for Jafrac1f08066 exhibit germ cells that fail to enter the midgut and show a primordial germline cell adherence phenotype with an average of 0.7 primordial germline cells left outside. Jafrac1KG05372/Jafrac1f08066 mutants exhibit an intermediate phenotype between the two alleles.