FP knock-in. Reference: Heppert JK, et al. 2017 Genetics. In press.

he314[pie-1p::GLO-ePDZ::mCherry::smu-1::tbb-2 3'UTR] II. e259[eft-3p::PH::eGFP::LOV::tbb-2 3'UTR]) IV. Superficially wild-type. CRISPR/Cas9 was used to create insertion alleles he314 and he259 insertions into N2 background at sites of known MosSCI insertions ttTi5605 and cxTi10816, respectively. ePDZ–LOV system transgenes allow use of blue light to control protein heterodimerization, in this case, membrane recruitment of ePDZ-tagged proteins of interest. Germline-optimized cytosolic ePDZ::mCherry-tagged SMU-1 (GLO-ePDZ::mCherry::SMU-1), and membrane-bound LOV2 domain fused to a pleckstrin-homology domain (PH::eGFP::LOV). GLO-ePDZ::mCherry is a germline-optimized variant coded to be less prone to silencing in the germline. Reference: Fielmich LE, et al. eLife 2018 Aug 15;7:e38198. doi: 10.7554/eLife.38198.

utdSi51[mex-5p::tomm-20(aa 1-55)::halotag::lov::tbb-2 3’UTR] II. Maintain at 23C and protect from light. Strain is sickly, seems to grow best and lay more eggs at 23C. Upon stimulation with 488nm light, the LOV-ePDZ optogenetic system will recruit mitochondria to the dynein heavy chain in the worm embryo. Embryonic cell divisions can be stopped by if mitochondrial recruitment is stimulated in early development. Room light can also induce mitochondria re-localization and cause infertility; store this strain in the dark. Reference: Fan X, et al. G3 (accepted).