Picture from Hope IA et al. (2003) Gene "The forkhead gene family of Caenorhabditis elegans."
Fig. 8. Expression pattern images for F40H3.4, K03C7.2, C25A1.2. (A) b-galactosidase expression of a F40H3.4::lacZ fusion in an adult hermaphrodite of the strain UL655 showing expression in nerve cells of the circumpharyngeal nerve ring. (1000x magnification.) (B) GFP expression in nerve cells and the proctodeum of an adult male for a F40H3.4::gfp fusion in the strain UL671 (200x magnification.). (C) b-galactosidase expression in a 1.5 fold embryo at different focal planes for the F40H3.4::lacZ fusion in the strain UL655. (1000x magnification.) (D) Extensive GFP expression throughout the digestive and nervous systems in an adult hermaphrodite for a K03C7.2::gfp fusion in the strain UL850. (200x magnification.) (E) Nerve cell GFP expression in the nerve ring of an adult hermaphrodite for a C25A1.2::gfp fusion in the strain UL712. (400x magnification.) (F) GFP expression in the developing gonad of a L4hermaphrodite for a C25A1.2::gfp fusion in the strain UL712. (400x magnification.) The yellow fluorescence in the gut is due to autofluorescent granules.