Search Strains

wtfIs5 [rab-3p::NLS::GCaMP6s + rab-3p::NLS::tagRFP]. Integrated calcium indicator GCaMP6s and calcium-insensitive fluorescent protein RFP in the nuclei of all neurons in a lite-1(ce314) gur-3(ok2245) double mutant background. Derived from parental strain AML14 by integration of wtfEx4. Reference: Gauthey W, et al. Curr Biol. 2024 Jan 8;34(1):R14-R15. doi: 10.1016/j.cub.2023.10.043. PMID: 38194919.

wtfIs491 [inx-1p::twk-18(gf)::mCherry + unc-122p::RFP]. AIB(-) activated potassium channel. Expression of twk-18 gain-of-function mutant in AIB neurons causes permanent inhibition. RFP expression in coelomocytes. Reference: Chen KS, et al. Olfactory learning alters navigation strategies and behavioral variability in C. elegans. ArXiv, Feb 23:arXiv:2311.07117v2. PMID: 38013890.

wtfIs46 [mec-4p::Chrimson::SL2::mCherry::unc-54 3'UTR]. wtfEx535 [tdc-1p::AI::lgc- 47::SL2::his-24::tagRFP + unc-122p::GFP]. Pick animals with GFP+ coelomocytes to maintain. Expression of activating opsin molecule Chrimson in six gentle-touch mechanosensory neurons (ALML/R, AVM, PLML/R, PVM). Rescuing LGC-47 expression in RIML/R neurons. Reporter construct contains an artificial intron (AI). Reference: Kumar S, et al. An inhibitory acetylcholine receptor gates context dependent mechanosensory processing in C. elegans. bioRxiv 2024.03.21.586204; doi: https://doi.org/10.1101/2024.03.21.586204. PMID: 38585821.

wtfIs46 [mec-4p::Chrimson::SL2::mCherry::unc-54 3'UTR]. wtfEx538 [npr-9p::AI::lgc-47::SL2::tagBFP + unc-122p::GFP]. Pick animals with GFP+ coelomocytes to maintain. Expression of activating opsin molecule Chrimson in six gentle-touch mechanosensory neurons (ALML/R, AVM, PLML/R, PVM). Rescuing LGC-47 expression in AIB neuron. Reporter construct contains an artificial intron (AI). Reference: Kumar S, et al. An inhibitory acetylcholine receptor gates context dependent mechanosensory processing in C. elegans. bioRxiv 2024.03.21.586204; doi: https://doi.org/10.1101/2024.03.21.586204. PMID: 38585821.

wtfIs46 [mec-4p::Chrimson::SL2::mCherry::unc-54 3'UTR]. wtfEx539 [rig-3p::AI::lgc-47::SL2::GFP + unc-122p::GFP]. Pick animals with GFP+ coelomocytes to maintain. Expression of activating opsin molecule Chrimson in six gentle-touch mechanosensory neurons (ALML/R, AVM, PLML/R, PVM). Rescuing LGC-47 expression in AVA neuron. Reporter construct contains an artificial intron (AI). Reference: Kumar S, et al. An inhibitory acetylcholine receptor gates context dependent mechanosensory processing in C. elegans. bioRxiv 2024.03.21.586204; doi: https://doi.org/10.1101/2024.03.21.586204. PMID: 38585821.

wtfIs46 [mec-4p::Chrimson::SL2::mCherry::unc-54 3'UTR]. wtfEx543 [tdc-1p::AI::lgc-47::SL2::his-24::tagRFP + npr-9p::AI::lgc-47::SL2::tagBFP + rig-3p::AI::lgc-47::SL2::GFP + unc-122p::GFP]. Pick animals with GFP+ coelomocytes to maintain. Expression of activating opsin molecule Chrimson in six gentle-touch mechanosensory neurons (ALML/R, AVM, PLML/R, PVM). Rescuing LGC-47 expression in AIB, AVA, and RIM neurons. Reporter construct contains an artificial intron (AI). Reference: Kumar S, et al. An inhibitory acetylcholine receptor gates context dependent mechanosensory processing in C. elegans. bioRxiv 2024.03.21.586204; doi: https://doi.org/10.1101/2024.03.21.586204. PMID: 38585821.

wtfIs5 [rab-3p::NLS::GCaMP6s + rab-3p::NLS::tagRFP]. Integrated calcium indicator GCaMP6s and calcium-insensitive fluorescent protein RFP in the nuclei of all neurons in a lite-1(ce314) mutant background. Derived from parental strain AML14 by integration of wtfEx4. Reference: Gauthey W, et al. Curr Biol. 2024 Jan 8;34(1):R14-R15. doi: 10.1016/j.cub.2023.10.043. PMID: 38194919.

ieSi57 [eft-3p::TIR1::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. cer135 is a rpb-2::GFP(delta)piRNA::AID*::3xFLAG tag inserted into the endogenous rpb-2 locus. This strain allows auxin-dependent disruption of RNA polymerase II with dose-dependent lifespan shortening. Reference: Oswal N, et al. PLoS Comput Biol. 2022 Sep 30;18(9):e1010415. PMID: 36178967.

weSi174 [eif-3.Bp::TIR1::linker::mCherry(dpiRNA)::tbb-2 3'UTR + unc-119(+)] II. Maintain at 20C or less. Sterile at 25C. Auxin-inducible degradation of DAF-2::AID* causes dauer formation. Reference: Eder M, et al. Cell. 2024 Jul 25;187(15):3919-3935.e19. doi: 10.1016/j.cell.2024.05.050. PMID: 38908368.

ohmSi10 [eft-3p::TIR1(F79A)::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. Single copy transgene inserted into chromosome II (oxTi179). Pan-somatic expression of modified Arabidopsis thaliana TIR1(F79A) tagged with mRuby for super-sensitive auxin-inducible degradation in somatic tissues using 5-Ad-IAA as a ligand. Generated by CRISPR/Cas9 modification of ieSi57 in parental strain CA1200. ohmSi10 previously referred to as ohm10. Reference: Vicencio J, et al. Nat Commun. 2025 Dec 12;16(1):10848. doi: 10.1038/s41467-025-66347-x. PMID: 41388022.

ohmSi24 [unc-119p::TIR1(F79G)::mRuby] (IV: -0.05). Neuron-specific expression of modified Arabidopsis thaliana TIR1(F79G) tagged with mRuby for auxin-inducible degradation (AIDv2) in neuronal tissues. Generated by CRISPR/Cas9 modification of emcSi70 in parental strain HAL227. ohmSi24 previously referred to as ohm24. Reference: Vicencio J, et al. Nat Commun. 2025 Dec 12;16(1):10848. doi: 10.1038/s41467-025-66347-x. PMID: 41388022.

ohmSi8 [eft-3p::TIR1(F79G)::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. Single copy transgene inserted into chromosome II (oxTi179). Pan-somatic expression of modified Arabidopsis thaliana TIR1(F79G) tagged with mRuby for auxin-inducible degradation (AIDv2) in somatic tissues. Generated by CRISPR/Cas9 modification of ieSi57 in parental strain CA1200. ohmSi8 previously referred to as ohm8. Reference: Vicencio J, et al. Nat Commun. 2025 Dec 12;16(1):10848. doi: 10.1038/s41467-025-66347-x. PMID: 41388022.

ohmSi53 [eft-3p::TIR1::SL2::NLS::mTagBFP2::eft-3 3'UTR] IV. Pan-somatic expression of a TIR1 transgene with nuclear-localized mTagBFP2 co-expression marker. Generated by CRISPR/Cas9 modification of ohmSi49 in parental strain AMP245. ohmSi53 previously referred to as ohm53. Reference: Vicencio J, et al. Nat Commun. 2025 Dec 12;16(1):10848. doi: 10.1038/s41467-025-66347-x. PMID: 41388022.l. Nature Communications (2025).

Heterozygotes are WT and segregate WT (heterozygotes), Unc-4 worms which are strong Egl (ty4 homozygotes), and paralyzed Dpy Uncs (mnC1 homozygotes).

Egl. Premature stop codon.

adeIs1 [mex-5::spd-1::GFP + unc-119(+)] II. The transgene has been inserted on chromosome II, using the MosSCI technique. This strains expresses the SPD-1 protein fused to GFP in the germline (both males and females) and in embryos. SPD-1 is nucleolar in interphase and labels the central spindle in mitosis and meiosis, later accumulating at the midbody. Reference: Nahaboo W, et al. Mol Biol Cell. 2015 Jun 1;26(11):2020-9. doi: 10.1091/mbc.E14-12-1577.

adeIs1 [mex-5::spd-1::GFP + unc-119(+)] II. ltIs37 [pie-1p::mCherry::his-58 + unc-119(+)] IV. Superficially wild-type. SPD-1::GFP and mCherry-tagged histones allow visualisation of chromatin with central spindle/midbody during cell divisions. Reference: Nahaboo W, et al. Mol Biol Cell. 2015 Jun 1;26(11):2020-9.

pkIs2386 [unc-54p::alphasynuclein::YFP + unc-119(+)]. neIs9 [myo-3::HA::rde-1 + rol-6(su1006)] X. Rollers. YFP expression in the muscles. Derived by crossing parental strains NL5901 and WM118 to produce a Parkinson's model with muscle-only RNAi. Reference: Snow S, et al. (2024). Neuronal CBP-1 is required for enhanced body muscle proteostasis in response to reduced translation downstream of mTOR. Frontiers in Bioscience-Landmark.

eif-2alpha(rog3) is a (S49A) substitution allele (I:2073439..2073448; WS220) removing P site and PAM site. eif-2alpha (Y37E3.10) encodes the alpha subunit of eukaryotic translation initiation factor 2 (eIF2). Reference: Rollins J, et al. Loss of eif-2alpha phosphorylation on S49 (mammalian S51) associated with the integrated stress response hastens development in C. elegans. MicroPubl Biol. 2017;2017:10.17912/W2BM1S. doi: 10.17912/W2BM1S. Erratum in: MicroPubl Biol. 2020 Feb 27;2020: PMID: 32292896.

pkIs2386 [unc-54p::alphasynuclein::YFP + unc-119(+)]. uIs57 [unc-119p::YFP + unc-119p::sid-1 + mec-6p::mec-6]. YFP expression in the muscles. Parkinson's model with hypersensitive neuronal RNAi. Reference: Snow S, et al. (2024). Neuronal CBP-1 is required for enhanced body muscle proteostasis in response to reduced translation downstream of mTOR. Frontiers in Bioscience-Landmark.

qIs51 [myo-2p::GFP + pes-10p::GFP + F22B7.9p::GFP]. Heterozygotes are wild-type GFP+ and segregate non-GFP ok421 homozygotes, wild-type GFP+ heterozygotes, and arrested nT1[qIs51] aneuploids. Pick wild-type GFP+ and check for correct segregation of progeny to maintain. Received new stock 12/02.

ljfSi10 [hlh-8p::2x mTurquoise2::PH::tbb-2 3'UTR loxN] II. Endogenously engineered transcriptional reporter that can be used to visualize membranes of egl-17-expressing cells. egl-17(ljf24) was generated by inserting SL2::mNG::PH following the egl-17 stop codon. mTurquoise2::PH plasma membrane marker that is expressed in the M lineage. ljfSi10 was inserted at Chr II:8420157-8420243, near ttTi5605, using Cas9-triggered homologous recombination. Reference: Gibney TV & Pani AM. Development. 2025 Aug 21:dev.204802. doi: 10.1242/dev.204802. PMID: 40838367.

ljfSi2 [hlh-8p::2x mKate2::D. melanogaster moesin actin-binding domain::SL2::2x mTurquoise2::PH::3xHA::tbb-2 3'UTR loxN] I. Single-copy transgenic strain that expressing mTurquoise2::PH plasma membrane marker and mKate2::moesin actin binding domain in the M lineage. lfjSi2 was inserted at Chr I:2851088, near ttTi4348, using Cas9-triggered homologous recombination. Reference: Gibney TV & Pani AM. Development. 2025 Aug 21:dev.204802. doi: 10.1242/dev.204802. PMID: 40838367.

Skiddy, bleach-sensitive, drug-sensitive, Bus, resistant to Leucobacter Verde2, hypersensitive to Leucobacter Verde1. lj22 is a missense mutation (R32C) in bus-8A and might also affect bus-8B (out-of-frame 5'exon U1). Reference: Partridge et al. (2008) PMID: 18395708.

Y22D7AR.13. Hyperactive 5HT induced egglaying. Homozygous. Outer Left Sequence: AATTATCGGATTTAGGGCCG. Outer Right Sequence: ATGGAACGGAGCATTATTCG. Inner Left Sequence: CAACACGCAACGAATGTACC. Inner Right Sequence: TGTGAAGTTTGGGAGGCTTT. Inner primer WT PCR product: 3126. Outcrossed 5 times by Stanley Shyn. URL: http://www.celeganskoconsortium.omrf.org.

15C: no phenotype. 26C: shifted as L4 or later results in 100% embryonic lethality; shifted before L4 results in Unc and Sterile animals. Intermediate phenotypes between 20-23C.

Unc at all temperatures. For hcp-6: 15C: no phenotype. 26C: shifted as L4 or later results in 100% embryonic lethality; shifted before L4 results in Unc and Sterile animals. Intermediate phenotypes between 20-23C.

wamSi101 [eft-3p::mTFP::unc-54 3'UTR + Cbr-unc-119(+)] V. Expresses a single copy of mTFP from eft-3 promoter; construct utilizes the unc-54 terminator and 3'UTR. Can be used as a standard for multicolor imaging and quantitative microscopy. Reference: Sands B, et al. 2018. Translational Medicine of Aging Volume 2, January 2018, Pages 1–10.

wamSi103 [eft-3p::mKO2::unc-54 3'UTR + Cbr-unc-119(+)] V. Expresses a single copy of mKO2 from eft-3 promoter; construct utilizes the unc-54 terminator and 3'UTR. Can be used as a standard for multicolor imaging and quantitative microscopy. Reference: Sands B, et al. 2018. Translational Medicine of Aging Volume 2, January 2018, Pages 1–10.

wamSi112 [eft-3p::mScarlet::unc-54 3'UTR + Cbr-unc-119(+)] II. Expresses a single copy of mScarlet from eft-3 promoter; construct utilizes the unc-54 terminator and 3'UTR. Can be used as a standard for multicolor imaging and quantitative microscopy. Reference: Sands B, et al. 2018. Translational Medicine of Aging Volume 2, January 2018, Pages 1–10.

wamSi118 [eft-3p::mCerulean3::unc-54 3'UTR + Cbr-unc-119(+)] II. Expresses a single copy of mCerulean3 from eft-3 promoter; construct utilizes the unc-54 terminator and 3'UTR. Can be used as a standard for multicolor imaging and quantitative microscopy. Reference: Sands B, et al. 2018. Translational Medicine of Aging Volume 2, January 2018, Pages 1–10.

wamSi123 [eft-3p::mECitrine::unc-54 3'UTR + Cbr-unc-119 (+)] V. Expresses a single copy of mECitrine from eft-3 promoter; construct utilizes the unc-54 terminator and 3'UTR. Can be used as a standard for multicolor imaging and quantitative microscopy. Reference: Sands B, et al. 2018. Translational Medicine of Aging Volume 2, January 2018, Pages 1–10.

wamSi3 [eft-3p::mNeptune::unc-54 3'UTR + Cbr-unc-119(+)] II. Expresses a single copy of mNeptune from eft-3 promoter; construct utilizes the unc-54 terminator and 3'UTR. Can be used as a standard for multicolor imaging and quantitative microscopy. Reference: Sands B, et al. 2018. Translational Medicine of Aging Volume 2, January 2018, Pages 1–10.

wamSi6 [eft-3p::mTagBFP2::unc-54 3'UTR + Cbr-unc-119(+)] II. Expresses a single copy of mTagBFP2 from eft-3 promoter; construct utilizes the unc-54 terminator and 3'UTR. Can be used as a standard for multicolor imaging and quantitative microscopy. Reference: Sands B, et al. 2018. Translational Medicine of Aging Volume 2, January 2018, Pages 1–10.

wamSi7 [eft-3p::mTagRFP-T::unc-54 3'UTR + Cbr-unc-119(+)] II. Expresses a single copy of mTagRFP-T from eft-3 promoter; construct utilizes the unc-54 terminator and 3'UTR. Can be used as a standard for multicolor imaging and quantitative microscopy. Reference: Sands B, et al. 2018. Translational Medicine of Aging Volume 2, January 2018, Pages 1–10.

No visible phenotype. Whole genome sequenced strain. Reference: Grenache DG, et al. Proc Natl Acad Sci U S A. 1996 Oct 29;93(22):12388-93.

No visible phenotype. Whole genome sequenced strain.

No visible phenotype. Whole genome sequenced strain.

kyIs140 [str-2::GFP + lin-15(+)] I. Kinker; can't back up. srf-6 mutants express str-2::GFP in both AWC neurons (2AWC ON phenotype; wild-type phenotype is 1AWC ON): check for this phenotype to avoid reversion of srf-6(yj13). srf-6 mutants were originally identified by binding of an L1-specific antibody in later larval stages (L1-L4).

kyIs140 [str-2::GFP + lin-15(+)] I. nsy-1(ky593) has no visible phenotype, but can be tracked by linked Unc-4 phenotype (Kinker, can't back up). str-2::GFP is expressed in both AWC neurons.

Superficially wild-type. Antibody staining required to observe phenotype.

zuIs45 [nmy-2p::nmy-2::GFP + unc-119(+)] V. Balanced heterozygotes are Unc and segregate Unc (heterozygotes), Rol Par (sqt-3 par-1 homozygotes; maternal effect lethal), and dead eggs (nT1 homozygotes). NMY-2::GFP is expressed in the germline and somatic gonad. Cross of JJ1473 and KK288. Unknown if unc-119(ed3) is still present or homozygous in background. Reference: Small LE & Dawes AT. Mol Biol Cell. 2017 Aug 1;28(16):2220-2231.

zuIs45 [nmy-2p::nmy-2::GFP + unc-119(+)] V. Balanced worms are wild-type and segregate wild-type (heterozygotes), Coil Par (par-6 unc-101 homozygotes; maternal effect lethal), and paralyzed Unc (hIn1 homozygotes). Par phenotype is slightly leaky, but survivors are agametic. NMY-2::GFP is expressed in the germline and somatic gonad. Cross of JJ1473 and KK818. Unknown if unc-119(ed3) is still present or homozygous in background. Reference: Small LE & Dawes AT. Mol Biol Cell. 2017 Aug 1;28(16):2220-2231.

zuIs45 [nmy-2p::nmy-2::GFP + unc-119(+)] V. Heterozygous worms are wild type and segregate wild type, Par (maternal effect lethal), and Dpy (sC1 homozygotes). Heterozygous and Par adults are indistinguishable on the plate. Maintain by picking wild-type worms and checking for correct segregation of progeny. NMY-2::GFP is expressed in the germline and somatic gonad. Cross of JJ1473 and VC1313. Unknown if unc-119(ed3) is still present or homozygous in background. Reference: Small LE & Dawes AT. Mol Biol Cell. 2017 Aug 1;28(16):2220-2231.

Temperature sensitive sterility. Maintain at 15C.

Temperature sensitive sterility. Maintain at 15C. Enhanced sensitivity to pathogens.

Enhanced pathogen resistance.

Homozygous sterile mutation balanced by bli-4- and GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP sterile tm2223 homozygotes. Homozygous hT2[bli-4 let-? qIs48] inviable. Pick WT GFP and check for correct segregation of progeny to maintain. Reference: Furuta T, et al. Development. 2018 May 14;145(10). pii: dev161042. doi: 10.1242/dev.161042.

Homozygous sterile deletion balanced by tmC9 [F36H1.2(tmIs1221[myo-2p::Venus])]. Heterozygotes are wild-type Venus+ in pharynx, and segregate wild-type Venus+ heterozygotes, non-Venus Sterile (tm6688 homozygotes), and Venus+ Mec Unc (tmC9 homozygotes). Pick viable fertile Venus+ animals and check for correct segregation of progeny to maintain. Reference: Furuta T & Arur S. 2023. sart-3 functions to regulate germline sex determination in C. elegans. microPublication Biology. PubMed ID: 37206989.

Homozygous lethal deletion balanced by tmC9 [F36H1.2(tmIs1221[myo-2p::Venus])]. Heterozygotes are wild-type Venus+ in pharynx, and segregate wild-type Venus+ heterozygotes, non-Venus Sterile (tm15993 homozygotes), and Venus+ Mec Unc (tmC9 homozygotes). Pick viable fertile Venus+ animals and check for correct segregation of progeny to maintain. 93% of tm15993 homozygotes die before adulthood and those that escape are sterile. Reference: Furuta T & Arur S. 2023. sart-3 functions to regulate germline sex determination in C. elegans. microPublication Biology. PubMed ID: 37206989.