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In situ hybridization of kifc1 mRNA during the E. modestus spermiogenesis.

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posted on 30.09.2013, 03:03 by Cong-Cong Hou, Wan-Xi Yang

(A,B,I) Early stage of spermiogenesis. These figures show that kifc1 mRNA signals (arrows; blue signal; red dots) are weakly distributed in the cytoplasm of round or oblong spermatids. (C,D,J) Middle stage of spermiogenesis. These figures show that kifc1 mRNA signals (arrows; blue signal; red dots) are increased compared to the early stage and concentrate on one side of the spermatid where the acrosome will eventually form. (E,F,K) Late stage of spermiogenesis. These figures show that kifc1 mRNA signals (arrows; blue signal; red dots) are strongly distributed in the cytoplasm, centralized over the acrosome cap, and localized in a dot-like pattern on the surface of the dish-shaped nucleus. The AFS-derived spike shows a minimal signal. (G,H,L) Mature sperm. These figures show that kifc1 mRNA signals (arrows; blue signal; red dots) are weakly distributed over the acrosome cap but, in general, are dramatically decreased compared to other stages of spermiogenesis. The AFS-derived spike and the dish-shaped nucleus show minimal signal. N: nucleus, M: mitochondria, G: Golgi complex, LCX: lamellar complex, AFS: acroframosome, MF: microfilaments.

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