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Fig. 1
rac3b, rfng, and sgca are closely positioned within chromosome 12 and expressed in hindbrain boundary cells. (A) Gene organization within the indicated region of chromosome 12. (B–M) Spatiotemporal profile of rac3b, rfng, and sgca in the hindbrain: double in situ hybridizations for rac3b, rfng, or sgca (blue) and egr2a (red) as a landmark of rhombomeres 3 and 5 (r3, r5). Note that rac3b, rfng, and sgca are expressed at the hindbrain boundaries with a similar onset of expression. All images are dorsal views of flat-mounted hindbrains with anterior at the top.
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