inx-4 expression was seen in several head and tail neurons, including the ASHs of early larvae and the ADFs of L1s (Expr8672). Using an inx-4p::gfp reporter construct, inx-4 expression was observed also in the ASH nociceptors of adult animals.
INX-14 and INX-22 are expressed in the germline and colocalize at plaque-like structures, suggesting that they are components of sheath-oocyte gap junctions. Interestingly, we also observed INX-14 and INX-22 throughout the germline, beginning in the L2 stage.
During development, inx-18 shows no expression until after early morphogenesis. inx-18 is mainly expressed in head and tail neurons starting around threefold stage.