Heterozygotes are WT and segregate WT, Unc and dead embryos. eT2 homozygotes are embryonic lethals.

etIs1 [ric-19p::ric-19::GFP + rol-6(su1006). Low levels of ric19::GFP fusion protein expression driven by the ric-19 promoter in all neurons except for strong expression in the pharyngeal M2 neurons. Nearly 90% of worms have defects in the distal ends of the pharyngeal M2 neurons.

Heterozygotes are WT and segregate WT, Dpy and ddb-1 homozygotes, which arrest as L2-stage larvae (approx. 15%) or become sterile adults with protruding vulva (approx. 85%).