Fluorescent signals from PDFR-1::GFP could be observed in hermaphrodites throughout post-embryonic life.
pdfr-1::gfp transgenic lines showed consistent GFP expression in all 95 body wall muscle cells and less frequently in muscle arms. Expression was also observed in the mechanosensory neuron pairs PLM, ALM, FLP, OLQD, and OLQV, the chemosensory neuron pairs PHA and PHB, the ring motor neurons RMED and RMEV, and the pharyngeal interneuron pair I1. In addition, fluorescent signals were observed in 2 vulva cells and several additional head and tail neurons that could not be unequivocally identified. In males, a similar expression pattern was observed in the head and body wall muscle cells. Other neuronal cells, like the sensory neuron R3, that has a possible role in male mating behavior, showed GFP fluorescence in the male tail.