Fig. 5From: Successful transplantation of spermatogonial stem cells into the seminiferous tubules of busulfan-treated miceTransplantation of SSCs in vivo. The GFP (Green Fluorescent Protein) label proved that the injected cells differentiated into sperm. Localisation of the labeled injected SSCs in the basal compartment of the seminiferous tubules (A1). Bright field analysis (A3, A4) and merging with GFP (A2) showed that injected cells developed to spermBack to article page