Figure 5. Expression of the
nid-1 gene detected by using the
nid-1 promoter to drive GFP expression. Embryos (A, B, C, D, and E) and larvae (F, G, H, and I). (A and B) Shortly before (A) and at the beginning (B) of embryonic elongation, expression is detected in the Cep (cephalic), IL (inner labial) and OL (outer labial) neurons (arrows). (C, D, and E) During succeeding stages of elongation until hatching, expression is detected in body wall muscle (arrowheads), the intestinal and anal depressor muscle cells (*), and the ALM neurons. (F, G, H, and I) In the larva, expression is detected in the head Ceh, IL, and OL neurons (F), the excretory cannel cell (exc) and anterior intestine (int) (G), the distal tip cells (DTC) and the HSN neurons (H), and posteriorly in the PLM neurons and the anal depressor and intestinal muscle cells (mu int and mu anal) (I).