A-D:
gtl-1 is expressed in the intestine. The intestine is marked by white arrows in panels A-D and a black arrow in panel E. Panels A-D show transgenic animals carrying GFP fused to part of the
gtl-1 gene created as below. A, expression in the intestine (white arrows) of an adult. B, a closer view of the intestine (white arrow) of a young adult. C an oblique section in which GFP expression in the lining of the intestine (white arrow) is clear. D, expression in the intestines (white arrows) of two three-fold embryos.