Fig. 3From: Transcription factor E4F1 dictates spermatogonial stem cell fate decisions by regulating mitochondrial functions and cell cycle progressionGenetic inactivation of E4f1 blocked spermatogonia development. A Immunofluorescence staining for SOX9 (green) and LIN28A (red) in sections of testes from PD0 to adult controls and E4f1 cKO testes. B Quantification of undifferentiated spermatogonia per 500 Sertoli cells in testis sections from PD0 to adult control and E4f1 cKO mice. n = 3. Error bars represent SD. **P < 0.01, ***P < 0.001, Student’s t testBack to article page