Fig. 3. Histological analysis of testes and cauda epididymides. (A-C) Sections of stage IX tubules from wild-type (A), PMP (B) and PMH (C) mice. (D-F) Enlargements of the boxed areas shown above. As expected, elongating spermatids (egs) are present in stage IX tubules from wild-type and transgenic animals. Elongated spermatids (eds) fail to release in the transgenic epithelium and are eventually engulfed by the Sertoli cells. (G-I) Cauda epididymis from wild-type (G), PMP (H) and PMH (I) mice. The sections were stained with PAS and Hematoxylin.