Fig. 6. Dividing peritubular myoid cells are reduced in the Dax1-deficient
testis. TUNEL staining of the wild-type (A) and Dax1-deficient (B)
testis at 13.5 dpc. (C) Cell counts taken from gonads at 13.5 dpc. (D,E) BrdU
labeling of dividing cells (brown precipitate) in wild-type (D) and
Dax1-deficient (E) testis at 13.5 dpc. (F) Cell counts included flat,
curved epithelial cells (arrows, inset in D) in eight wild-type and ten Dax1
knockout gonads (*P
0.001).