A
ceh-30::gfp genomic construct rescued
ceh-30(
n4289{Delta}) for CEM survival and caused GFP expression in the nuclei of many neurons in the 3-fold embryo and in as many as a dozen neurons in larvae. GFP expression was not observed in the CEMs of male larvae, indicating that any
ceh-30 expression in the CEM neurons is likely to be weak or transient. The ventral CEM neurons of 1.5-fold stage masculinized embryos, which can be identified by their positions within the embryo, expressed
ceh-30::gfp. Expression in the dorsal CEMs cannot be as readily examined. Thus,
ceh-30 is expressed transiently in embryonic CEMs.