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Fig. 7. GATA4/FOG2 loss does not affect the initiation of germ cell sexual
differentiation. (A) ISH was performed with an Oct4 RNA
probe on XX gonads from wild-type or Fog2-/- mouse embryos
as indicated. (B-D) Immunofluorescent staining of frozen sections with
an anti-
H2AX antibody (red). Embryonic germ cells are detected by the
anti-PECAM1 antibody. Note the anti-
H2AX staining in the normal ovaries
(C) and mutant gonads (D), but not in the control testis (B). (E)
qRT-PCR analysis of Stra8 and Scp1 gene expression in
wild-type and Fog2-/- E13.5-14.5 XX and XY gonads. The
y-axis shows values for both genes normalized to Gapdh RNA
copy number.