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. Author manuscript; available in PMC: 2017 Jul 12.
Published in final edited form as: Tissue Cell. 1998 Aug;30(4):389–397. doi: 10.1016/s0040-8166(98)80053-0

Fig. 1.

Fig. 1

Appearance of ROSA26 testis cells after 2 days in culture. A and C were cultured without STO feeders; B and D were cultured with STO feeders; A and B are phase-contrast microscopy of living cells; C and D are X-gal-stained cells. Each culture well initially received 106 testis cells. Note increased number of round cells present in wells with STO feeders. Many of these round cells are likely to represent various differentiated stages of germ cells. Scale bar = 60 μm.