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Fig. 4. Synb and Cebpa are downstream of Gcm1, but
Synb is not downstream of Cebpa. In situ hybridizations
for Gcm1, Synb, Cebpa, Cebpb and Syna on 10 µm sections
of E9.5 Gcm1+/- (Het) and Gcm1-/-
(Gcm1 KO) mouse placentas and
Cebpa+/-;Cebpb+/- (Double Het),
Cebpa-/- (Cebpa KO), Cebpb-/-
(Cebpb KO) and
Cebpa-/-;Cebpb-/- (DoubleKO)
placentas. al, allantois; ch, chorion; f, fetal blood space; m, maternal blood
space. Scale bars: 100 µm.