Fig. 10

Ct-ngn, Ct-ash1, and Ct-neuroD, but not Ct-elav1 expression terminate as the VNC matures. a–d Comparison of the expression patterns of Ct-ngn, Ct-ash1, Ct-neuroD, and Ct-elav1 in the VNC at later stages of development. The scale bar in (a) is 40 µm; all other images are to the same scale unless otherwise noted. In each panel, the images are shown in a ventral view, with anterior to the left, and the stage of the animal is indicated in the lower left. An asterisk marks the position of the mouth, the prototroch (pt) is labeled with dashes, and the position of the telotroch (tt) is marked by a straight . ST6L, stage 6 late