Figure 10. Effects of kifc1 knockdown on P. japonicus testis detected using the TUNEL assay. (A) No apoptosis signal was detected in the normal testes. (B) No apoptosis signal was detected in dsEGFP testes. (C) Apoptosis signal was detected in dsKIFC1-1 testes. (D) No apoptosis signal was detected in dsKIFC1-1 vas deferens. (E) No apoptosis signal was detected in dsKIFC1-1 spermatophore. (F) In dsKIFC1-1 testes, apoptosis was taken place in spermatogonia (white arrows) and spermatocytes (yellow arrows). Blue: DAPI, Red: TUNEL. Scale bar = 20μm in A, B and C. Scale bar = 10μm in D, E and F.