Fig. 3. Coexpression of Rec8 protein with SCP3 protein in mouse testis. Frozen sections were incubated with either a mouse polyclonal anti-SCP3 antibody or rabbit polyclonal anti-Rec8 antibody, or both antibodies, and detected with Alexa 488 (green)-conjugated or Alexa 546 (red)-conjugated, anti-mouse or rabbit IgG secondary antibodies. DNA was stained with propidium iodide in single-labeled sections. Broken lines indicate the basement membrane of seminiferous tubules. Spermatogonia (sg) lie next to the basement membrane. Spermatocytes (sc) are larger cells and lie away from the basement membrane. Spermatids (st) are farther from the membrane and have a smaller nuclei. Arrows in lower panels indicate the cells in which Rec8 protein was expressed but in which SCP3 signal was hardly detected. Bar, 50 µm.

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