Fig. 3

Fig. 3 Dorsal and anterior neural tissue is reduced or missing in Class III MZsqt embryos. emx1 (A–E) or pax6a (F–J) expression in wild type (A, F), Class I MZsqt (B, G), Class II MZsqt (C, H), Class III MZsqt (D, I), or MZoep (E, J) embryos at 24 hpf. emx1 expression in the posterior telencephalon is indistinguishable from wild type in Class I and Class II MZsqt (A–C), but is expanded in Class III MZsqt (D) and in MZoep (E). pax6a is expressed in the retinas of wild type and Class I MZsqt embryos (F, G) and in the retina of the cyclopic eyes in Class II MZsqt (H) and MZoep (J). pax6a is not expressed in Class III MZsqt embryos (I). (A–E) Lateral view with anterior to the left. (F–J) Dorsal view with anterior to the left. Arrowheads indicate retinal pax6a expression (F–H, J) or the absence of retinal pax6a expression (I).