The presence of shg^nos.PS in a Jafrac1^KG05372 mutant background rescues the Jafrac1^KG05372 primordial germline cell adhesion defect to an average of 0.5 primordial germline cells left outside of the midgut with 21% of embryos affected. This result is statistically similar to heterozygous mutant controls with an average of 0.3 primordial germline cells left outside of the midgut with 2% of embryos affected and indicates that shg acts downstream of Jafrac1 in primordial germline cells to regulate their adhesion during gastrulation.