Fig. 3.

Non-autonomous control of sex-specific germ cell gene expression. Expression of CG9253 assayed by in situ hybridization. Female embryos are identified by Dfd-lacZ expression from the paternal X chromosome. Graphs display combined average percentages of male gene expression normalized to the XY sibling controls. (A) In tra mutants (tra¹/Δtra), XX germ cells exhibit male-specific gene expression. (B) Ectopic expression of tra in XY soma causes loss of male-specific germ cell gene expression. (C) Stat92E mutant germ cells have reduced male-specific gene expression. (D) Ectopic upd expression in XX germ cells does not induce all of the male-specific genes.