Figure 8.

Relationship of the cC-VO group to rhombomere-derived domains as seen in parasagittal sections of r2::Cre;Hoxa2^{EGFP(lox–neo–lox)} mice (left) and Hoxa2^EGFP mice (right) at E11.5–E14.5. Yellow lines indicate expression domain boundaries that were clearly visible, and broken lines indicate less certain boundaries. Dorsal is up, and rostral is to the left. nVII, Facial nerve entry zone, which is devoid of EGFP expression. At E14.5, the cC-VO group is outlined. In the r2::Cre;Hoxa2^{EGFP(lox–neo–lox)} panel (left), the large arrow indicates a population of labeled neurons, probably rostrally projecting raphe neurons, located ventral to the domains that contain the vestibular projection neuron populations.