... staining) were correctly expressed. Thus, early muscle differentiation and specification does not rely on the presence of the muscles' target. Fig. 3. The presence of the eye is not required for eye muscle differentiation and specification. ( A ) Scheme of eye ablation at HH10; dorsal view...

... muscle, the most caudal of the extrinsic eye muscles. In contrast to somitic cells that express Lbx1 , lateral rectus precursors are non-migratory. Moreover, the set of markers characteristic for the lateral rectus precursors differs from the marker sets indicative of somitic muscle precursors...