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Immunohistochemical analyses of SUMO-1 (A, B, E, and F) and SUMO-2/3 (C, D, G, and H) antigens in the testes of wild-type (A, C, E, and G) and Sumo-1−/− (B, D, F, and H) mice at 10 days of age (10 days) and in adulthood (adult). XY bodies are depicted by the dark brown spots within the semineferous tubules. Bar, 50 μm.
