Video 2. Effects on gastrulation of α-Cat RNAi and fog mutant background.

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Videos showing His2Av-RFP channel (orthogonal view, left; and maximum intensity projection, center) and MCP-GFP channel with transcription directed by m5/m8 ^[II] (maximum intensity projection, right) in α-Cat RNAi (top) and fog^- (bottom) embryos. 0.36 µm/px XY resolution, 27x1µm (α-Cat RNAi) and 29 × 1µm (fog^-) slices and time resolution of 15 s/frame. Anterior to the left; embryo imaged from the ventral side. Time indicates minutes from the beginning of nc14.