Myosin localization in the craniofacial muscles of 4 dpf embryos.

<p>Wild type siblings (a,a'); <i>unc45a^−/−</i> (b,b'); <i>unc45b^−/−</i> (c,c'); <i>unc45b^−/−</i>; <i>unc45a^−/−</i> (d,d') mutants. Lateral (a–d) and ventral (a'–d') views, head to the left. Expression is unaltered between wild type siblings (a,a') and <i>unc45a^−/−</i> (b,b'), <i>unc45b^−/−</i> (c,c') or <i>unc45b^−/−</i>; <i>unc45a^−/−</i> (d,d') mutants. The sternohyoideus is displaced in <i>unc45b^−/−</i> (c,c') and <i>unc45b^−/−</i>; <i>unc45a^−/−</i> (d,d') embryos. Primes denote alternative views of the same embryo. ao, adductor operculi; am, adductor mandibulae; do, dilator operculi; dpw 1–5, dorsal pharyngeal wall; hh, hyohyoideus; ih, interhyoideus; ima, intermandibularis anterior; imp, intermandibularis posterior; lap, levator arcus palatini; pp, pterygoid process; sh, sternohyoideus.