Figure 2.

Micrographs of in situ hybridizations for trkA (A), CGRP (B), sodium channel SNS (C), trkC (D), calretinin (E), and sodium channel II (F). Consecutive transverse sections containing a lumbosacral DRG from an E14 embryo are shown. Boundaries of DRGs are marked with broken white lines. Signals for trkA, CGRP, and sodium channel SNS are found medially; those for trkC, calretinin, and sodium channel II are concentrated laterally. The patterns of expression for trkA and trkC are almost complementary. Dorsal is up and medial is left. (Bar represents 110 μm.)