The egl-27 reporter is expressed in the Y cell in the 1.5-fold embryonic stage as well as during the L1 larval stage, which precedes the initiation of Y transdifferentiation.
As previously found (Bounoutas et al., 2009b; Sun et al., 2013), a mec-15::GFP translational reporter was expressed in the TRNs, several head and tail neurons, and ventral cord motor neurons.