Fig. 6
Zebrafish cops6 plays an anti-apoptotic role in early development. TUNEL assay of wild-type embryos and cops6 morphants at different developmental stages. There were no significant differences between (A) control and (B) cops6 morphants at 50-60% epiboly stage. At the 12-14 somite stage, (D) cosp6 morphants showed increased positive staining of apoptotic cells in the trunk region (white asterisk) when compared to (C) control; lateral view. Apoptotic cells (arrows) at the same stage, dorsal view (insert), were found in (D) cops6 morphants, but not in (C) control. Afterwards, at (E,F) prim-5 stage, increased numbers of apoptosis-positive stained cells (arrows) were found only in (F) cops6 morphants. (G,H) At the 12-14 somite stage, the apoptotic dying cells, exhibiting a rounded-up cell body (arrowheads), were found in (H) cops6 morphants. Scale bar: 1250 μm (A,B), 210 μm (C-F) and 150 μm (G,H).