Ppa-lin-17 /Fz expression was found in the posterior body region surrounding the rectal area in all larval stages. Coexpression of
Ppa-lin-17 /Fz::RFP with
Ppa-egl-20 /Wnt::GFP indicates that the two genes have an overlapping expression pattern during larval development that is, however, not completely identical. Low level
Ppa-lin-17 /Fz::RFP expression is also seen in more anterior regions including the VPCs during the J3 larval stage. All described expression patterns were highly reproducible and were observed in several independent transgenic lines.