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. 2021 Aug 18;9:700860. doi: 10.3389/fcell.2021.700860

FIGURE 2.

FIGURE 2

Temporal Atoh1 expression pattern in the lamprey hindbrain. Lateral (A–F) and dorsal views (A’–F’). Dashed lines indicate the MHB. Atoh1 expression starts at stage 23.5 in the rostral half of the rhombic lip (B) and subsequently expands throughout the rhombic lip during stages 24–26 (C–E). After stage 27 (not shown), the expression is restricted only to the rostral border of the rhombomere 1 (F). Note that the apparent asymmetrical staining in (B) does not reflect the actual difference in expression, but is caused by the staining process. e, eye; gf, complex of facial/lateral line ganglion; ov, otic vesicle.