Maintain at 15C. Temperature-sensitive unc-119 allele. Wild-type at 15C, intermediate Unc and Egl at 20C, and fully penetrant Unc and Egl at 25C. For use in transgenesis, maintain the strain at lower temperatures for increased brood size and easier injection, then transfer animals to 25C to select for transgenic animals based on Unc rescue. Molecular characterization shows a complex allele with a 210 bp duplication from a nearby exon-intron junction, which introduces 12 amino acids and a putative splice donor at a consensus splice acceptor site. The phenotype is most likely caused by temperature-sensitive splicing defects based on RT-PCR. Reference: Aljohani M, et al. Arrayed oligo libraries: genome-wide DNA- and RNP-based platforms for templated and non-templated CRISPR-Cas9 editing in C. elegans. (Submitted)

Superficially wild type. Modular linker::mNeonGreen::3xFLAG::linker tag inserted in the endogenous col-97 locus by CRISPR to produce a translational fusion inserted internally near the C-terminus (after amino acid 288). Allele obtained using plasmid-based unc-119 selection. Injection of a Cre recombinase plasmid failed to excise the loxP-flanked unc-119(+) cassette for unknown reasons. The insert was verified to be correct through Sanger sequencing. Knock-in is linked to the temperature-sensitive unc-119(kst33) allele. Cassette design allows for re-editing of locus with common crRNAs/sgRNAs.

Modular linker::mNeonGreen::3xFLAG::linker tag inserted at the C-terminus of the endogenous col-75 locus by CRISPR. Allele obtained using plasmid-based unc-119 selection in a temperature-sensitive unc-119(kst33) III background The unc-119(+) cassette was removed through Cre-mediated excision and the unc-119(kst33) allele was removed by outcrossing. Cassette design allows for re-editing of locus with common crRNAs/sgRNAs.