Search Strains

bcIs39 [lim-7p::ced-1::GFP and lin-15(+)] V.  Resistant to germ cell apoptosis. No apoptosing germ cells are decorated by CED-1::GFP in the gonad. ced-3 deletion confirmed by genomic triple primer PCR with 5’-AGTTCACCGTGACAGCGTCTCTTC-3’, 5’-CGATTACGACTTGAACTGTATCCGA-3’, and 5’-TCTTGTGTAAACGAGATTTGCAATG-3’. Homozygous ced-3(n2452) yields only 1,110 bp product. Outcrossed heterozygotes yield both 1,411 bp (wild type ced-3) and 1,110 bp products. [NOTE: (11-05-2019) A user has reported this strain exhibits temperature-sensitive sterility when raised at 25C.]

bcIs39 [lim-7p::ced-1::GFP and lin-15(+)] V.  Resistant to germ cell apoptosis. No apoptosing germ cells are decorated by CED-1::GFP in the gonad. Genetically identical to KX87 (Contreras, V., et al, 2011).

Defecation motor program defects (Aex), pale and starved-looking, tends to stay still but not Unc.

aBoc and Exp defective. Slow growth and small brood size. tgDf1 deletes aex-1 and lrp-1.

Superficially WT. byDf1 completely suppresses the Egl defect of sel-12 mutants. byDf1 derepresses the transcription of hop-1 in the early larval stages. byDf1 is a deletion of 31,069 bases from position 3052 of cosmid F46H6 to position 6698 of cosmid C07A12 with a single A base pair insertion. byDf1 deletes F46H6.2/dgk-2, F46H6.4, F46H6.1/rhi-1, C07A12.5/spr-3 and part of C07A12.7. byDf1 is null for spr-3 by sequence and northern analysis. Deletion can be detected with the primers RB1222 CTT ACT AGT ACT AGC TCG CG and RB1224 CCT GTC CAT AAG TGC AGT CC, which give a product of 1540 bp. This strain may not be used for commercial purposes.

Heterozygotes are WT and segregate WT, Paralyzed Uncs and L3 lethals. ua1 is a deletion of the first 3 full exons of the NADH-ubiquinone oxidoreductase of complex I in the mitochondrial respiratory chain.

Heterozygotes are WT and segregate WT (fluorescent), Dpys (highly fluorescent) and L3 lethals (non-fluorescent). GFP semi-dominantly expressed in 4-60 cell embyros, pharyngeal muscle and gut. Pharyngeal and gut GFP is easily seen in a UV dissecting microscope; early embryonic signal requires higher magnification. mIs14 occasionally crosses off mIn1[dpy-10], apparently by double recombination. mIs14 is ccEx9747 integrated into mIn1[dpy-10]. This is a three-construct element containing myo-2 and pes-10 promoters and a gut enhancer fused individually to GFP coding sequence. Called LB21B.

Reduction in serotonin and dopamine, most apparent in young larva; bleach hypersensitivity and cuticle fragility in adult, but less than null mutants. Derived by outcrossing CB7107 six times to N2. Reference: Loer CM, et al. Genetics. 2015 May;200(1):237-53.

Serotonin- and dopamine-deficient, tetrahydrobiopterin-deficient, general chemical hypersensitivity, cuticle fragility (rapid disintegration in alkaline bleach), male turning defective (phenotypes appear identical to cat-4 null mutants). Derived by outcrossing FX1984 five times to N2. Reference: Loer CM, et al. Genetics. 2015 May;200(1):237-53.

ldIs7 [skn-1b/c::GFP + rol-6(su1006)]. Rollers. Reference: An JH and Blackwell TK. Genes Dev. 2003 Aug 1;17(15):1882-93.

ldEx9 [skn-1(operon)::GFP + rol-6(su1006)]. Maintain by picking Rollers. Reference: Tullet JM, et al. Cell. 2008 Mar 21;132(6):1025-38.

ldEx1050 [pcst-1p::pcst-1::GFP +rol-6(su1006)]. Maintain by picking Rollers. Reference: Lehtinen MK, et al. Cell. 2006 Jun 2;125(5):987-1001.

Heterozygotes are semi-Dpy and throw semi-Dpy, Dpy, and WT (which throw all dead eggs).

lqIs126 [rack-1::MYC + osm-6::GFP]. lqIs126 rescues sterility, gonadal distal tip cell migration defects, and axon pathfinding defects caused by rack-1(tm2262). Reference: Demarco RS, Lundquist EA. PLoS Genet. 2010 Nov 18;6(11):e1001215.

lqIs3 [osm-6::GFP] IV. Cell corpse engulfment defect. lqIs3 carries a PDE/amphid/phasmid marker linked to ced-10. Reference: Struckhoff EC, Lundquist EA. Development 2003, 130:693-704.

Dpy. AQR and PQR migration defects. Body wall muscle defects. etr-1(lq61) is a premature stop in alternatively-spliced exon 8. Reference: Ochs ME, et al. G3: Genes Genomes, Genetics. 2020 Jul 7;10(7):2365-2376. doi: 10.1534/g3.120.401182. PMID: 32398235

Dpy. AQR and PQR migration defects. Body wall muscle defects. etr-1(lq133) is 2 bp deletion frameshift in alternatively-spliced exon 8. Reference: Ochs ME, et al. G3: Genes Genomes, Genetics. 2020 Jul 7;10(7):2365-2376. doi: 10.1534/g3.120.401182. PMID: 32398235

juIs76 [unc-25p::GFP + lin-15(+)] II. lqIs3 [osm-6::GFP] IV. Cell engulfment defect at 2-fold stage. Reference: Demarco RS & Lundquist EA. PLoS Genet. 2010 Nov 18;6(11):e1001215.

juIs76 [unc-25p::GFP + lin-15(+)] II. Precise deletion of src-1 generated by Cas9 genome editing. Balancer marked with myo-2p::Venus. Heterozygotes are wild-type with Venus+ pharynx, and will segregate wild-type with Venus+ pharynx (heterozygotes), sterile adults without Venus in pharynx (lq185 homozygotes), and Dpy with Venus+ pharynx (tmC20 homozygotes). GFP expression in GABAergic motor neurons. Reference: Mahadik S, et al. bioRxiv 2023.05.20.541322; doi: https://doi.org/10.1101/2023.05.20.541322.

juIs76 [unc-25p::GFP + lin-15(+)] II. D381A substitution mutation generated by Cas9 genome editing. Balancer marked with myo-2p::Venus. Heterozygotes are wild-type with Venus+ pharynx, and will segregate wild-type with Venus+ pharynx (heterozygotes), embryonic lethality (syb7248 homozygotes), and Dpy with Venus+ pharynx (tmC20 homozygotes). GFP expression in GABAergic motor neurons. Reference: Mahadik S, et al. bioRxiv 2023.05.20.541322; doi: https://doi.org/10.1101/2023.05.20.541322.

eqIs1 [lrp-1::GFP] I. eqIs1 is a spontaneous insertion of an lrp-1::GFP transgene extremely close to the endogenous lrp-1 gene that completely rescues lrp-1(ku156) Mlt and larval lethality. Reference: Kang YL, et al. Mol Biol Cell. 2013 Feb;24(3):308-18.

Maintain under normal conditions. Reference: Wang X, et al. J Cell Biol. 2008 Jan 14;180(1):233-46.

otEx331 [lad-2p::GFP + pha-1(+)]. Axon guidance defects in SDQ, PLN and SMD neurons. Maintain under normal conditions. Not known if pha-1 is still present in background; maintain by picking GFP+ animals. Reference: Wang X, et al. J Cell Biol. 2008 Jan 14;180(1):233-46.

ldrIs1 [dhs-3p::dhs-3::GFP + unc-76(+)]. dhs-3::GFP is expressed mainly in intestinal cells and localized to intestinal lipid droplets. Reference: Zhang P, et al. Mol Cell Proteomics. 2012 Aug;11(8):317-28.

rcSi1 [mex-5p::rpt-1::mCherry + unc-119(+)] II. RPT-1::mCherry allows visualization of the proteasome in the germline. Reference: Sampuda KL, et al. BMC Cell Biol. 2017 Apr 19;18(1):18.

ltIs37 [pie-1p::mCherry::his-58 + unc-119(+)] IV. avIs116 [pie-1p::GFP::ubiquitinAA + unc-119(+)]. GFP::ubiquitinAA is visible in the germline when raised at 25C. GFP::ubiquitinAA is a mutated form of ubiquitin that has a dialanine at the C-terminus instead of the diglycine required for conjugation onto protein substrates. Useful control strain for LN130. [NOTE: the ltIs37 [pie-1p::mCherry::his-58 + unc-119(+)] IV transgene was previously annotated as itIs37 in this strain. The correct name of the transgene is ltIs37 and not itIs37.] Reference: Sampuda KL, et al. BMC Cell Biol. 2017 Apr 19;18(1):18.

Roller. Reduced brood size and reduced sperm count. CRISPR/Cas9 GFP insertion at amino acid 216 of RPN-6.2a. Expression of GFP in the spermatogenic germline. The SEC (self excising cassette) contains the stop codon and transcriptional termination signal for GFP as well as a sqt-1(d) allele. Pick rollers to maintain the strain with the SEC. Excision will result in an in frame fusion of GFP at amino acid 216 of RPN-6.2a or amino acid 5 of RPN-6.2b.

N-terminally tagged GFP::CHE-12. Cilia are slightly shorter than WT. GFP fluorescence appears in multiple sensory cilia in the head and phasmid neuron cilia in the tail. Reference: Das A, et al. Mol Biol Cell. 2015 Nov 15;26(23):4248-64.

Entire che-12 coding sequence deleted and replaced with GFP. This produced a phenotype that is more penetrant than that reported for the original che-12 strain, which introduced a nonsense mutation midway through the coding region. Short amphid and phasmid cilia. Defective chemotaxis to NaCl. Dye-filing defective. Reference: Das A, et al. Mol Biol Cell. 2015 Nov 15;26(23):4248-64.

cpIs56 [mex-5p::TagRFP-T::PLC(delta)-PH::tbb-2 3'UTR + unc-119 (+)] II. Reporter labels plasma membrane in early embryo. Transgene construct consisted of a germline promoter sequence (mex-5) driving the expression of a fluorescent protein fused to the N-terminus of the the pleckstrin homology domain from phospholipase C-(delta)1 (PH domain) and a 2x Flag epitope tag. Reference: Heppert JK, et al. Mol Biol Cell. 2016 Nov 7;27(22):3385-3394.

C-terminally tagged CHE-12::GFP. Cilia are slightly shorter than WT. GFP fluorescence appears in multiple sensory cilia in the head and phasmid neuron cilia in the tail. Reference: Das A, et al. Mol Biol Cell. 2015 Nov 15;26(23):4248-64.

mNG::aPKC endogenously tagged using Cas9-triggered homologous recombination. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

PAR-6::mNG endogenously tagged using Cas9-triggered homologous recombination. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

mNG::PAR-3 endogenously tagged using Cas9-triggered homologous recombination. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

PAR-6::mKate2 endogenously tagged using Cas9-triggered homologous recombination. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

NMY-2::mKate2 endogenously tagged using Cas9-triggered homologous recombination. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

cpIs53 [mex-5p::GFP-C1::PLC(delta)-PH::tbb-2 3'UTR + unc-119 (+)] II. Reporter labels plasma membrane in early embryo. Transgene construct consisted of a germline promoter sequence (mex-5) driving the expression of a fluorescent protein fused to the N-terminus of the pleckstrin homology domain from phospholipase C-(delta)1 (PH domain) and a 2x Flag epitope tag. Reference: Heppert JK, et al. Mol Biol Cell. 2016 Nov 7;27(22):3385-3394.

cpIs54 [mex-5p::mKate::PLC(delta)-PH(A735T)::tbb-2 3'UTR + unc-119 (+)] II. Reporter labels plasma membrane in early embryo. Transgene construct consisted of a germline promoter sequence (mex-5) driving the expression of a fluorescent protein fused to the N-terminus of the pleckstrin homology domain from phospholipase C-(delta)1 (PH domain) and a 2x Flag epitope tag. Reference: Heppert JK, et al. Mol Biol Cell. 2016 Nov 7;27(22):3385-3394.

cpIs55 [mex-5p::mCherry-C1::PLC(delta)-PH::tbb-2 3'UTR + unc-119 (+)] II. Reporter labels plasma membrane in early embryo. Transgene construct consisted of a germline promoter sequence (mex-5) driving the expression of a fluorescent protein fused to the N-terminus of the pleckstrin homology domain from phospholipase C-(delta)1 (PH domain) and a 2x Flag epitope tag. Reference: Heppert JK, et al. Mol Biol Cell. 2016 Nov 7;27(22):3385-3394.

mNG:GEX-3 endogenously tagged using Cas9-triggered homologous recombination. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

mNG::MEX-5 endogenously tagged using Cas9-triggered homologous recombination. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

mNG::OMA-2 endogenously tagged using Cas9-triggered homologous recombination. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

mNG::RAP-1 endogenously tagged using Cas9-triggered homologous recombination. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

cpIs64 [mex-5p::mYPet::PLC(delta)-PH::tbb-2 3'UTR + unc-119 (+)] II. Reporter labels plasma membrane in early embryo. Transgene construct consisted of a germline promoter sequence (mex-5) driving the expression of a fluorescent protein fused to the N-terminus of the pleckstrin homology domain from phospholipase C-(delta)1 (PH domain) and a 2x Flag epitope tag. Reference: Heppert JK, et al. Mol Biol Cell. 2016 Nov 7;27(22):3385-3394.

Halo::PAR-3 endogenously tagged using Cas9-triggered homologous recombination. HaloTag-GLO is a germline-optimized variant coded to be less prone to silencing in the germline. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

Halo::aPKC endogenously tagged using Cas9-triggered homologous recombination. HaloTag-GLO is a germline-optimized variant coded to be less prone to silencing in the germline. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

mNG::PAR-2 endogenously tagged using Cas9-triggered homologous recombination. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

PAR-6::Halo endogenously tagged using Cas9-triggered homologous recombination. HaloTag-GLO is a germline-optimized variant coded to be less prone to silencing in the germline. Reference: Dickinson DJ, et al. Dev Cell. 2017 Aug 21;42(4):416-434.e11. (PMID 28829947).

cpIs158 [myo-3p::pat-3sp::2x vhhGFP4::CD8 tm::2x mTurquoise2::PH::tbb-2 3'UTR loxN] I. cpIs130 [wrt-2p::2x mKate2::PH::3xHA::let-858 3'UTR::tag-168p::HisCl1::tbb-2 3'UTR loxN] II. YPET::3xFlag tag inserted at the C-terminus of the endogenous egl-20 locus. cpIs158 expresses a membrane-anchored anti-GFP nanobody (Morphotrap) in body wall muscles. This version of Morphotrap consists of extracellular 2x vhhGFP4 fused to a human CD8 transmembrane domain and intracellular 2x mTurquoise2. Endogenously tagged EGL-20::YPET::3xFlag is efficiently sequestered by the Morphotrap transgene (the transgene functions as expected for Wnt), leading to Q neuroblast migration defects. NOTE: cpIs158/Morphotrap does not capture all YPET-tagged extracellular proteins, so sequestration should be determined empirically. cpIs130 is a single copy transgene expressing a 2x mKate2::PH membrane marker in seam cells, Q neuroblasts, and many hypodermal cells, and HisCl1 expression from the tag-168 upstream intergenic sequence. Expression of HisCl1 from the single copy insertion does not appear to be sufficient for immobilizing animals. cpIs158 was inserted at Chr I:2851088 near ttTi4348 using Cas9-triggered homologous recombination. cpIs130 was inserted at Chr II:8420157-8420243 near ttTi5605. Reference: Gibney TV & Pani AM. Development. 2025 Aug 21:dev.204802. doi: 10.1242/dev.204802. PMID: 40838367.

Null allele of lea-1. lea-1 gene replaced with myo-2p::GFP reporter. cp423 mutants can be identified by GFP expression in pharynx. Reference: Hibshman JD & Goldstein B. BMC Biol. 2021 Dec 14;19(1):263. doi: 10.1186/s12915-021-01176-0. PMID: 34903234