Additional file 3.Expression of LIN28 in GFRA1-positive spermatogonia. Seminiferous tubules from adult mice were immunostained with anti-LIN28 and anti-GFRA1 antibodies. As, Apr, and Aal spermatogonia were encircled. Scale bar, 25 μm. Format: TIFF Size: 835KB Download file Zheng et al. BMC Developmental Biology 2009 9:38 doi:10.1186/1471-213X-9-38 |