"
tax-2, a cyclic nucleotide-gated channel gene required for chemotaxis and thermotaxis (Coburn and Bargmann, 1996), also lost expression specifically in ASE neurons of the
che-1 mutant (Fig. 4L)... Expression of a homeobox gene
ceh-23 (Wang et al., 1993) and a LIM-homeobox gene
lim-6 (Hobert et al., 1999) was also lost specifically in ASE neurons (Fig. 4N,P)... However, a panneuronal marker gene F25B3.3 encoding a putative Ca2+- regulated Ras nucleotide exchange factor (Altun-Gultekin et al., 2001), was expressed in the ASE neurons of the
che-1 mutant (Fig. 4R)."