Search Strains

Heterozygotes are WT and segregate more WT, Vul, and Lethal Twitchers. Lethal early larval. Heterozygotes twitch in 1% Nicotine.

Heterozygotes are WT and segregate WT and Lethal Twitchers. Lethal early larval (L1-L2). Pick heterozygotes to maintain by picking Twitchers in 1% nicotine.

umnIs44 [myo-2p::mKate2 + NeoR, II: 11755713 (intergenic)] II. Derived by insertion of myo-2p::mKate2 transgene into parental strain N2 using CRISPR/Cas9.

tnIs13 [pie-1p::vab-1::GFP + unc-119(+)]. ltIs44 [pie-1p::mCherry::PH(PLC1delta1) + unc-119(+)].

tnIs13 [pie-1p::vab-1::GFP + unc-119(+)]. ltIs44 [pie-1p::mCherry::PH(PLC1delta1) + unc-119(+)]. Homozygous hT2[bli-4 let-? qIs48] are inviable. Homozygous fog-3(q443) animals are females.

eagIs6 [spn-4p::jGCaMP7s::pie-1 3'UTR + HygR [*fxIs10] ] II. ltIs44 [pie-1p::mCherry::PH(PLC1delta1) + unc-119(+)] IV. CaFE reporter (calcium inducible fluorescence in germline). Calcium-inducible fluorescent jGCaMP7s protein codon-optimized for elegans and expressed in germline enables visualization of calcium wave upon fertilization. mCherry::PH marks cell membranes. Reference: Toperzer KM, et al. Biol Open. 2023 Sep 15;12(9):bio059832. PMID: 37602653.

Heterozygotes are Unc and segregate Unc, dead eggs and lethal Twitchers. Lethal early larval (L1-L2). Maintain by picking Unc. Do not distribute this strain; other labs should request it from the CGC.

dqIs44 [pie-1::mCherry::moe + unc-119(+)]. Can be maintained at room temperature; shift to 25C for RNAi and imaging. Strain does not do well when kept at 25C for multiple generations. Reference: Shivas JM & Skop AR. Mol Biol Cell. 2012 May;23(10):1917-27.

Aldicarb resistant. Unc. A65G mutant (C to T in second base of codon).

ltIs44 [pie-1p::mCherry::PH(PLC1delta1) + unc-119(+)].

syIs44 [hsp-16p::lacI::GFP + lacO(256) + dpy-20(+)] V. Non-Dpy. Upon heat shock, two intense spots of nuclear fluorescence due to lacO in the chromosome, and a diffuse nuclear fluorescence due to nuclear-localized GFP-lacI. Array derived from Fire Lab vector pPD49-78 and dpy-20 rescuing construct pMH86. Do not distribute this strain; other labs should request it from the CGC.

oyIs44 [odr-1::RFP + lin-15(+)]. Bright RFP in AWB and AWC.

wrdSi23 [eft-3p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (I:-5.32). rubSi6 [eft-3p::scFv(glo)::GFP(smu-1 introns)::tbb-2 3’UTR] II. rubSi8 [eft-3p::24xGCN4::AID::T2A::tagBFP::H2B::tbb-2 3’UTR *rubSi7]) IV. ltIs44 [pie-1p::mCherry::PH(PLC1delta1) + unc-119(+)] V. SunTag system allows visualization of translation throughout development in real-time. In the absence of translation, GFP signal can be observed in the cytoplasm, nuclei and at epithelial apical membranes. At translation sites of the SunTag reporter, bright clustering of the GFP signal can be observed. Mature GCN4 proteins can be observed as dimmer GFP clusters in the absence of auxin, but not in the presence of auxin. Bright BFP signal from mTagBFP2::AID*::NLS and TagBFP::H2B can be visible in nuclei in the absence of auxin, in the presence of auxin only dimmer TagBFP::H2B is visible in nuclei. mCherry::PH marks the cell membranes throughout development. rubSi6 was inserted into ttTi5605 and also includes a partial duplication of the transgene (a portion of GFP with smu-1 introns and tbb-2 3’UTR) downstream of the tbb-2 3’UTR in the intact transgene. rubSi8 derived by modification of insertion of an AID tag into rubSi7, which is located in cxTi10816. Reference: van der Salm E, et al. Development. 2025 May 15;152(10):dev204435. doi: 10.1242/dev.204435. PMID: 40260543.

syIs44 [hsp-16p::lacI::GFP + lacO(256) + dpy-20(+)] V. Heatshock induces expression of lacI::GFP in the soma, which binds to integrated lacO arrays. lacI::GFP expression is silenced in the germline. Derived by out-crossing PS2442 to remove e1282. Reference: Severson AF & Meyer BJ. Elife. 2014 Aug 29;3:e03467.

ltIs44 [pie-1p::mCherry::PH(PLC1delta1) + unc-119(+)] V. stIs10024 [pie-1::H2B::GFP::pie-1 3' UTR + unc-119(+)]. zuIs178 [his-72(1kb 5' UTR)::his-72::SRPVAT::GFP::his-72 (1KB 3' UTR) + 5.7 kb XbaI - HindIII unc-119(+)]. zzyIs139 [his-72p::PH(PLC1delta1)::mCherry::pie-1 3' UTR + unc-119(+)]. Reference: Zhao Z, et al. https://doi.org/10.21203/rs.3.rs-4664717/v1

umnIs34 [myo-2p::GFP + NeoR, III: 8856215 (intergenic)] II. Heterozygotes are wild-type GFP+ (pharynx), and segregate wild-type GFP+ (pharynx), Maternal effect lethal (Mel) non-GFP, sterile Dpy GFP+ (pharynx) mT1 homozygotes, and large numbers of arrested aneuploid embryos. Maintain by picking wild-type GFP+ and check for correct segregation of progeny to maintain. GFP tag inserted into N-terminus of endogenous baf-1(G12T) using CRISPR/Cas9. FRT sites in GFP introns 1 & 2 (indicated by ">" symbols in genotype) enable FLP-mediated conditional gene knockout. BAF-1(G12T) is a model for Nestor-Guillermo Progeria Syndrome. Reference: Romero-Bueno R, et al. EMBO J. 43(22): 5718-5746. doi: 10.1038/s44318-024-00261-8. PMID: 39367234.

mCherry tag inserted at C-terminus of endogenous emr-1 locus using CRISPR/Cas9 contains FRT sites in 1st intron of emr-1 and 1st intron of mCherry to enable FLP-mediated conditional gene knockout. Reference: Romero-Bueno R, et al. EMBO J. 43(22): 5718-5746. doi: 10.1038/s44318-024-00261-8. PMID: 39367234.

bqSi536 [hsp16.41p::FRT::mCherry::his-58::FRT::dam::baf-1 + unc-119(+)] II. bqSi548 [dpy-7p::FLP + unc-119(+)] IV. Single-copy Dam::baf-1 and dpy-7p::FLP MosSCI transgenes for identifying DNA contacts of BAF-1 in hypodermal nuclei by DamID. Might still carry unc-119(ed3) or unc-119(ed9) in background. Reference: Romero-Bueno R, et al. EMBO J. 43(22): 5718-5746. doi: 10.1038/s44318-024-00261-8. PMID: 39367234.

bqSi777 [hsp16.41p::FRT::mCherry::his-58::FRT::dam::baf-1(G12T) + unc-119(+)] II. bqSi548 [dpy-7p::FLP + unc-119(+)] IV. Single-copy Dam::baf-1(G12T) and dpy-7p::FLP MosSCI transgenes for identifying DNA contacts of BAF-1(G12T) in hypodermal nuclei in baf-1(G12T) mutant background by DamID. Reference: Romero-Bueno R, et al. EMBO J. 43(22): 5718-5746. doi: 10.1038/s44318-024-00261-8. PMID: 39367234.

bqSi447 [hsp16.41p::FRT::mCherry::his-58::FRT::GFP::dam + unc-119(+)] II. bqSi997 [nhx-2p::FLP::SL2::mNG + unc-119(+)] IV. Single-copy GFP::Dam and nhx-2p::FLP MosSCI transgenes for identifying DNA contacts of BAF-1 in the intestine by DamID. Might still carry unc-119(ed3) or unc-119(ed9) in background. Reference: Romero-Bueno R, et al. EMBO J. 43(22): 5718-5746. doi: 10.1038/s44318-024-00261-8. PMID: 39367234.

bqSi1103 [hsp16.41p::FRT::mCherry::his-58::FRT::dam::hpl-1 + unc-119(+)] II. bqSi997 [nhx-2p::FLP::SL2::mNG + unc-119(+)] IV. Single-copy Dam::hpl-1 and nhx-2p::FLP MosSCI transgenes for HPL-1 DamID in intestine. Might still carry unc-119(ed3) or unc-119(ed9) in background. Reference: Romero-Bueno R, et al. EMBO J. 43(22): 5718-5746. doi: 10.1038/s44318-024-00261-8. PMID: 39367234.

bqSi1104 [hsp16.41p::FRT::mCherry::his-58::FRT::dam::hpl-2 + unc-119(+)] II. bqSi997 [nhx-2p::FLP::SL2::mNG + unc-119(+)] IV. Single-copy Dam::hpl-2 and nhx-2p::FLP MosSCI transgenes for HPL-2 DamID in intestine. Might still carry unc-119(ed3) or unc-119(ed9) in background. Reference: Romero-Bueno R, et al. EMBO J. 43(22): 5718-5746. doi: 10.1038/s44318-024-00261-8. PMID: 39367234.

bqSi1411 [hsp16.41p::FRT::mCh::his-58::FRT::dam::rpb-6 + unc-119(+)] II. bqSi997 [nhx-2p::FLP::SL2::mNG + unc-119(+)] IV. Single-copy Dam::rpb-6 and dpy-7p::FLP MosSCI transgenes for transcriptome analysis in hypodermal nuclei using RNA polymerase DamID. Might still carry unc-119(ed3) or unc-119(ed9) in background. Reference: Romero-Bueno R, et al. EMBO J. 43(22): 5718-5746. doi: 10.1038/s44318-024-00261-8. PMID: 39367234.

Endogenous baf-1 locus modified by CRISPR/Cas9 (G12T) to encode BAF-1(G12T) as a model for Nestór-Guillermo Progeria Syndrome. Reference: Romero-Bueno R, et al. EMBO J. 43(22): 5718-5746. doi: 10.1038/s44318-024-00261-8. PMID: 39367234.

nIs590 [fat-7p::fat-7::GFP + lin15(+)] V.  The fat-7::fat-7::GFP translational reporter is activated constitutively by loss of acdh-11 function. acdh-11(n5878) is a 366 bp deletion. Reference: Ma et al., Cell. 2015 May 21; 161(5): 1152–1163.

xnIs449 [lin-26::lifeAct::GFP + unc-119(+)]. LifeAct-GFP expressed in epidermal cells of embryos. In adults, expression is also observed in pharynx and some cells in the tail. Reference: Zilberman, Y., J. Abrams, D.C. Anderson, and J. Nance. 2017. Cdc42 regulates junctional actin but not cell polarization in the Caenorhabditis elegans epidermis. J Cell Biol 216: 3729-3744.

Constructed by crossing individual fluorescence knock-in worms. GFP inserted into the endogenous che-3 locus at the N-terminus and tagRFP::3xFlag inserted into the endogenous xbx-1 locus at the C-terminus by Cas9-triggered homologous recombination. Fluorescence enriched in most if not all sensory cilia. Very weak fluorescence in the cell bodies of ciliated neurons.

Constructed by crossing individual fluorescence knock-in worms. GFP inserted into the endogenous klp-20 gene at its C-terminus, tagRFP::3xFlag inserted into the endogenous xbx-1 gene at its C-terminus and tagBFP inserted into the endogenous ift-81 gene at its C-terminus by Cas9-triggered homologous recombination. GFP enriched at the proximal region (middle segment) of amphid or phasmid sensory cilia while red and blue fluorescence enriched along the whole cilia. Very weak fluorescence in the cell bodies of ciliated neurons.

Heterozygotes are Unc and segregate Uncs, dead eggs, and Egl. lin-25(ar90) is a probable null mutation. Hermaphrodites are completely unable to lay eggs. Lineage defects in VPCs. Amber mutation (codon 197); amber suppressable. Do not distribute this strain; other labs should request it from the CGC.

osEx89 [col-10::GFP + dpy-22(+)]. Animals with the array are non-Dpy and GFP+. Animals which have lost the array are Dpy, Egl, and GFP-.

otis445 [ace-2p::RFP + LacO repeats]. gwIs39 [baf-1p::GFP::lacI::let-858 3'UTR + vit-5p::GFP]. RFP expression in cholinergic motor neurons. LACI::GFP aggregates on LacO repeats to form two dots in every nucleus. vit-5::GFP is expressed in intestine at L4 stage and later. Reference: Patel T & Hobert O. eLife 2017.

otIs447 [unc-3p::mCherry + pha-1(+)] IV. DA/DB/VA/VB motor neuron class-specific red fluorescent reporter. Reference: Kerk SY, et al. Neuron 2017 (in press).

wgIs441 [Y53C12C.1::TY1::EGFP::3xFLAG + unc-119(+)]. TY1::EGFP::3xFLAG tag inserted in frame at C-terminus of coding sequence by recombineering. Expression of transgene confirmed by GFP. References: Sarov, M, et al. Nat Methods (2006) 10:839-44. Zhong, M, et al. PLoS Genet (2010) 6(2):e1000848. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs444 [C09G12.1::TY1::EGFP::3xFLAG + unc-119(+)]. TY1::EGFP::3xFLAG tag inserted in frame at C-terminus of coding sequence by recombineering. Expression of transgene confirmed by GFP. References: Sarov, M, et al. Nat Methods (2006) 10:839-44. Zhong, M, et al. PLoS Genet (2010) 6(2):e1000848. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs447 [tag-68::TY1::EGFP::3xFLAG + unc-119(+)]. TY1::EGFP::3xFLAG tag inserted in frame at C-terminus of coding sequence by recombineering. Expression of transgene confirmed by GFP. References: Sarov, M, et al. Nat Methods (2006) 10:839-44. Zhong, M, et al. PLoS Genet (2010) 6(2):e1000848. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs448 [nhr-190::TY1::EGFP::3xFLAG + unc-119(+)]. TY1::EGFP::3xFLAG tag inserted in frame at C-terminus of coding sequence by recombineering. Expression of transgene confirmed by GFP. References: Sarov, M, et al. Nat Methods (2006) 10:839-44. Zhong, M, et al. PLoS Genet (2010) 6(2):e1000848. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs449 [Y22F5A.1::TY1::EGFP::3xFLAG + unc-119(+)]. TY1::EGFP::3xFLAG tag inserted in frame at C-terminus of coding sequence by recombineering. Expression of transgene confirmed by GFP. References: Sarov, M, et al. Nat Methods (2006) 10:839-44. Zhong, M, et al. PLoS Genet (2010) 6(2):e1000848. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

nsIs700 [nep-2(prom7)::tagRFP]. RFP expression specifically in GLR glia. Reference: Stefanakis N, et al. 2024 Feb 15. doi: 10.1038/s44318-024-00049-w. PMID: 38360995.

nsIs746 [nep-2(prom7)::GFP]. GFP expression specifically in GLR glia. Reference: Stefanakis N, et al. 2024 Feb 15. doi: 10.1038/s44318-024-00049-w. PMID: 38360995.

nsIs758 [nep-2(prom7)::2xNLS::YFP]. Nuclear YFP expression specifically in GLR glia. Reference: Stefanakis N, et al. 2024 Feb 15. doi: 10.1038/s44318-024-00049-w. PMID: 38360995.

Linker with GFP tag and degron inserted at the C terminus of the endogenous unc-30 locus. GFP expression in ASG, AVJ, DD, VD, and PVP neurons and GLR glia. Reference: Stefanakis N, et al. 2024 Feb 15. doi: 10.1038/s44318-024-00049-w. PMID: 38360995.

Linker with GFP tag and degron inserted at the C terminus of the endogenous let-381 locus. GFP expression in GLR glia, HMC and coelomocytes. Reference: Stefanakis N, et al. 2024 Feb 15. doi: 10.1038/s44318-024-00049-w. PMID: 38360995.

ccIs4443 [arg-1::GFP + dpy-20(+) ]. GFP activity in diverse differentiated non-striated mesodermal lineages. Strain might contain dpy-20(e1282) in background.

SL2::GFP::H2B tags inserted at N-terminus of nep-2 endogenous locus. Reference: Stefanakis N, et al. 2024 Feb 15. doi: 10.1038/s44318-024-00049-w. PMID: 38360995.

SL2::GFP::H2B tags inserted at C-terminus of gbb-1 endogenous locus. Reference: Stefanakis N, et al. 2024 Feb 15. doi: 10.1038/s44318-024-00049-w. PMID: 38360995.

SL2::GFP::H2B tags inserted at C-terminus of gbb-2 endogenous locus. Reference: Stefanakis N, et al. 2024 Feb 15. doi: 10.1038/s44318-024-00049-w. PMID: 38360995.

SL2::GFP::H2B tags inserted at C-terminus of pll-1 endogenous locus. Reference: Stefanakis N, et al. 2024 Feb 15. doi: 10.1038/s44318-024-00049-w. PMID: 38360995.

syIs123[unc-119(+) + fos-1a::YFP-TL]. Integration of functional fos-1a tagged with YFP at the N-terminus. Do not distribute this strain; other labs should request it from the CGC.

Armenian worm. Male/Female strain. Maintain by mating. Do not distribute this strain; other labs should request it from the CGC.

Enhances vulval development in the presence of let-23(sa62gf) in hermaphrodites and males. Animals are Dpy. Hermaphrodites are Egl. Males have abnormal ray development. Do not distribute this strain; other labs should request it from the CGC.