CGT-3::EGFP was expressed in pharyngeal intestinal valve, intestinal rectal valve and hypodermis. In transgenic rescue experiment, relatively weak but definite expression of the
cgt-3 gene was detected also in the germline. Searching the in situ hybridization database (see NEXTDB online at
http://nematode.lab.nig.ac.jp/ ) with cgt sequences revealed that the
cgt-3 gene is expressed in the gonad of adult hermaphrodites. Serial analysis of gene expression (SAGE) by Wang et al. (2009) also showed that
cgt-3 is among a set of 603 germline-specific/enriched genes identified only by SAGE.