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Figure 1


Fig. 1. The expression patterns of Pros{alpha}6-GFP and Pros{alpha}6T-GFP during spermatogenesis. (A-H) Pros{alpha}6-GFP; (A'-H')Pros{alpha}6T-GFP. (A,A') Apical ends of testes showing early spermatogonial stages. (B,B') 16-cell primary spermatocyte cysts (dotted lines, also in C-E). (B) Arrow, nucleolus; arrowhead, nucleus. (C,C') Late primary spermatocyte cysts. (D,D') Cysts undergoing meiosis I. (E,E') 64-cell onion-stage spermatid cysts. Nuclei are brightly fluorescing and nebenkerns are dark. (F,F') Elongated spermatid bundles. Nuclear bundles are brightly fluorescing in F' (arrows). (G,G') Spermatid bundles undergoing individualization. In G' the arrowhead indicates elongated and condensed nuclei and the arrow indicates spermatid bundles at the onset of individualization. (H,H') Seminal vesicles containing stored mature sperm (arrows). Scale bars: 20 µm in A-G,A'-G'; 150 µm in H,H'.