Figure 1.

Expression of C. elegans dss-1. A. dss-1 mRNA is expressed at different larval ages (L1 – L4) and in adult worms (ya, young adult) as shown by RT-PCR. act-4, actin (M03F4.2). B. DSS-1::GFP expressed under the dss-1 promoter localises to the nucleus of intestinal cells as shown by colocalisation with DAPI. g, gonad; i, intestine.