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Figure Caption

Figure 1—figure supplement 3. Transverse sections of the neural tube of <italic>olig2:egfp;nkx2.2a:nls-mcherry</italic> embryos at 24, 30, 36, 48, and 72 hpf showing <italic>olig2<sup>+</sup>/nkx2.2a<sup xmlns:xlink='http://www.w3.org/1999/xlink'>+</sup></italic> cells (outlined arrowheads).

All sections were collected along the yolk extension. White dashed lines show the dorsal edge of the lateral floor plate and yellow dashed lines denote the edge of the spinal cord. Scale bar, 25 µm.

Acknowledgments
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