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Fig. 6. Spindle organization in klp61F mutant spermatocytes. Testes of klp61F3 mutants stained with antibodies against {alpha}-tubulin (green), {gamma}-tubulin (red) and a fluorescent chromatin dye (blue). Arrows in (B) indicate an acentrosomal spermatocyte, (E) bivalent at a metaphase position in microtubule bundle, and (F) a cleavage furrow forming an asymmetric telophase spindle. Images are representative spindle organization in klp61F3/klp61F3, klp61F3/klp61F1 transheterozygotes and klp61F3/Df(3L)bab PG mutants. Bar, 5 µm.