Fig. 9.
IHC confirmed also the findings obtained by microarray analysis and qRT-PCR for Dazl (GCs). The occurrence of GC-specific DAZL protein revealed obvious differences between WT (A,C) and SCCx43KO (B,D) mice. The number of stained cells is drastically reduced in 8-day-old SCCx43KO mice (B), confirming results obtained by qRT-PCR. Note immunonegative spermatogonia in B (arrows). In adult mice, a clear immunoreaction for DAZL can be seen in spermatogonia and spermatocytes (C). By contrast, in adult SCCx43KO mice not even spermatogonia (arrows) show a DAZL immunostaining (D). Insert in A: representative negative control for DAZL experiments. Scale bars: (A,B) 50 μm; (C,D) 100 μm.