GFP::SPTF-3 was expressed ubiquitously in embryos and early larval animals; its expression in the M4 neuron and
g1A cells decreased during larval development. GFP::SPTF-3 was strongly expressed in the seam cells and the
hyp7 cells. GFP::SPTF-3 expression was observed in MSpaa in embryos and in the M4 neuron at the first larval stage.