Search Strains

ltSi953 [mec-18p::vhhGFP4::zif-1::operon-linker::mKate::tbb-2 3'UTR + Cbr-unc-119(+)] II. Touch response neuron (TRN)-specific expression of anti-GFP nanobody fused to ZIF-1 mediates TRN-specific degradation of GFP-tagged proteins (through recruited ZIF-1 but NOT requiring ZF1 tags). Can be combined with endogenous locus GFP-tagging or rescue of a null mutant with a GFP fusion to examine TRN neuron-specific functions of target genes. Reference: Wang S, et al. http://biorxiv.org/content/early/2017/01/30/104398

drIs4 [gpdh-1p::GFP + col-12p::DsRed] IV. K957M mutation introduced into the endogenous ogt-1 locus using CRISPR/Cas9; Sanger sequence confirmed. The K957M mutation ablates the O-GlcNAcylation activity of OGT-1 as measured by the RL2 O-GlcNAc antibody. gpdh-1p::GFP reporter is induced in the hypodermis and intestines during hypertonic stress. col-12p::GFP is constitutively expressed in the hypodermis. Reference: Urso SJ, et al. (2020). The O-GlcNAc transferase OGT is a conserved and essential regulator of the cellular and organismal response to hypertonic stress. bioRxiv, 2020.2005.2001.072033.

K957M mutation introduced into the endogenous ogt-1 locus tagged with C-terminal GFP. The K957M mutation ablates the O-GlcNAcylation activity of OGT-1 as measured by the RL2 O-GlcNAc antibody. OGT-1(K957M)::GFP is expressed ubiquitously in somatic tissues with a nuclear localization. Sanger sequence confirmed. Reference: Urso SJ, et al. (2020). The O-GlcNAc transferase OGT is a conserved and essential regulator of the cellular and organismal response to hypertonic stress. bioRxiv, 2020.2005.2001.072033.

drIs4 [gpdh-1p::GFP + col-12p::DsRed] IV. H612A mutation introduced into the endogenous ogt-1 locus using CRISPR/Cas9; Sanger sequence confirmed. The H612A mutation decreases, but does not completely ablate, the O-GlcNAcylation activity of OGT-1 as measured by the RL2 O-GlcNAc antibody. gpdh-1p::GFP reporter is induced in the hypodermis and intestines during hypertonic stress. col-12p::GFP is constitutively expressed in the hypodermis. Reference: Urso SJ, et al. (2020). The O-GlcNAc transferase OGT is a conserved and essential regulator of the cellular and organismal response to hypertonic stress. bioRxiv, 2020.2005.2001.072033.

drIs4 [gpdh-1p::GFP + col-12p::DsRed] IV. H612A mutation introduced into the endogenous ogt-1 locus tagged with C-terminal GFP. OGT-1(H612A)::GFP is expressed ubiquitously in somatic tissues with a nuclear localization. The H612A mutation decreases, but does not completely ablate, the O-GlcNAcylation activity of OGT-1 as measured by the RL2 O-GlcNAc antibody. Sanger sequence confirmed. Reference: Urso SJ, et al. (2020). The O-GlcNAc transferase OGT is a conserved and essential regulator of the cellular and organismal response to hypertonic stress. bioRxiv, 2020.2005.2001.072033.

drIs4 [gpdh-1p::GFP + col-12p::DsRed] IV. TPR domain deleted in the endogenous ogt-1 locus using CRISPR/Cas9; Sanger sequence confirmed. The TPR domain deletion (128 aa - 583 aa) ablates the O-GlcNAcylation activity of OGT-1 as measured by the RL2 O-GlcNAc antibody. Defective gpdh-1p::GFP induction in the hypodermis and intestine during hypertonic stress. Constitutive col-12p::DsRed expression. Impaired adaptation to hypertonic stress. Reference: Urso SJ, et al. (2020). The O-GlcNAc transferase OGT is a conserved and essential regulator of the cellular and organismal response to hypertonic stress. bioRxiv, 2020.2005.2001.072033.

TPR domain deleted in the endogenous ogt-1 locus tagged with C-terminal GFP. The TPR domain deletion spans 128 aa - 583 aa. OGT-1(delta-TPR)::GFP is expressed ubiquitously in somatic tissues with a nuclear localization. The TPR domain deletion ablates the O-GlcNAcylation activity of OGT-1 as measured by the RL2 O-GlcNAc antibody. Sanger sequence confirmed. Reference: Urso SJ, et al. (2020). The O-GlcNAc transferase OGT is a conserved and essential regulator of the cellular and organismal response to hypertonic stress. bioRxiv, 2020.2005.2001.072033.

ccIs4251 [(pSAK2) myo-3p::GFP::LacZ::NLS + (pSAK4) myo-3p::mitochondrial GFP + dpy-20(+)] I. otIs77 [ttx-3p::kal-1 + unc-122p::GFP] II. ruIs37 [myo-2p::GFP + unc-119(+)] III. jcIs1 [ajm-1::GFP + unc-29(+) + rol-6(su1006)] IV. vsIs33 [dop-3::RFP] V. ajm-1 was formerly known as jam-1 (Junction Associated Protein) and "the gene encoding the antigen recognized by the monoclonal antibody MH27." jcIs1 consists of pJS191, C45D3 and pRF4. Reference: Koppen M, et al. Nat Cell Biol. 2001 Nov;3(11):983-91.

otIs377 [myo-3p::mCherry]. otEx4945 [hsp16-2p::hlh-1::2xFLAG + rol-6(su1006)]. Rollers. Maintain at 15-20C; pick Rollers. Both otIs377 and otEx4945 were generated as complex arrays with digested bacterial genomic DNA.

otIs583 [gcy-5p*::GFP + ttx-3p::mCherry]. Robust GFP expression in both ASE neurons. mCherry expression in AIY meurons. *This strain contains a short gcy-5 promoter with the CHE-1 binding ASE motif multimerized. GFP expression is strong enough to visualize morphology of both ASE neurons simultaneously. Reference: Patel T & Hobert O. eLife 2017. Etchberger JF, et al. Development. 2009 Jan;136(1):147-60.

bnc-1 was modified by CRISPR/Cas9 to create both a GFP-tagged reporter and conditional allele using the auxin-inducible degron (AID*). Reference: Kerk SY, et al. Neuron. 2017 Jan 4;93(1):80-98. doi: 10.1016/j.neuron.2016.11.036. PMID: 28056346

ot860[hpl-2::mKate2]. Grows normally at 15-20C. Endogenous hpl-2 locus tagged with mKate2 using CRISPR/Cas9. mKate2 was inserted into the protein after amino acid 96; tags both isoforms of hpl-2. This tag was based on a published hpl-2 protein fusion (Couteau et al., 2002). Reference: Patel T & Hobert O. eLife 2017.

CRISPR/Cas9-engineered insertion of mNeonGreen::3xFLAG::AID* tags into endogenous ceh-34 locus. Reference: The enteric nervous system of C. elegans is specified by the Sine Oculis-like homeobox gene ceh-34. Vidal B, et al. bioRxiv 2021.11.30.470650; doi: https://doi.org/10.1101/2021.11.30.470650

otIs672 [rab-3::NLS::GCaMP6s + arrd-4:NLS:::GCaMP6s]. See description of strain OH15262 for full description of otIs669 NeuroPAL (Neuronal Polychromatic Atlas of Landmarks) transgene (Yemini E, et al. Cell. 2021 Jan 7;184(1):272-288.e11. PMID: 33378642). Bottlenecked 23x for isogenicity. Slow growing. Reference: Yemini E, et al. Cell. 2021 Jan 7;184(1):272-288.e11. PMID: 33378642 Free pre-print available at https://www.biorxiv.org/content/10.1101/676312v2

C09C7.1 Deletion breakpoints at position 237 and 803 with insertion of CTTGTATAGCAAGAAACC at this breakpoint. Predicted molecular null. About 30% penetrance of displaced axons in the ventral nerve cord. Homozygous viable.

GFP tag inserted at the C-terminus of the endogenous pha-4 locus by CRISPR. Allele obtained using Cas9-sgRNA ribonucleoprotein complex, following Dokshin et al, 2018 method. Please contact Oliver Hobert prior to publishing work using this strain.

otDf1is a deletion obtained using Cas9-sgRNA ribonucleoprotein complex, following Dokshin et al, 2018 method removing ceh-41, ceh-21, T26C11.9, and ceh-39. 8968 bp deletion, from position -159 upstream ceh-39 ATG, to +1608 from ATG ceh-41 (+89 from STOP ceh-41).

nIs107 [tbh-1::GFP] III. zfIs10 [tdc-1::mCherry] IV. RIC neurons are marked with both GFP and mCherry.

GFP tag inserted at the C-terminus of the endogenous ceh-44 locus by CRISPR. Allele obtained using Cas9-sgRNA ribonucleoprotein complex, following Dokshin et al, 2018 method.

GFP tag inserted at the C-terminus of the endogenous ceh-49 locus by CRISPR. Allele obtained using Cas9-sgRNA ribonucleoprotein complex, following Dokshin et al, 2018 method.

otEx7476 [ceh-34(fosmid) + myo-3p::mCherry]. Pick mCherry+ to maintain. ot1014 is a CRISPR/Cas9-engineered allele removing the entire ceh-34 locus. ot1014 homozygotes arrest as L1 larvae. Reference: The enteric nervous system of C. elegans is specified by the Sine Oculis-like homeobox gene ceh-34. Vidal B, et al. bioRxiv 2021.11.30.470650; doi: https://doi.org/10.1101/2021.11.30.470650

ot1028 = 80bp deletion on Exon 8 (first exon isoform A - isoform with CUT domains), leading to a frameshift and early stop codon in Exon 8 expected to affect only isoform A. Deletion coordinates: +9069 to +9148. Allele obtained using Cas9-sgRNA ribonucleoprotein complex, following Dokshin et al, 2018 method. ot1028 is molecularly identical to ot1031.

otIs785 [ceh-34p::GFP::CLA-1 + ceh-34p::TagRFP + rol-6(su1006)]. Rollers. Reference: The enteric nervous system of C. elegans is specified by the Sine Oculis-like homeobox gene ceh-34. Vidal B, et al. bioRxiv 2021.11.30.470650; doi: https://doi.org/10.1101/2021.11.30.470650

otIs810 [sto-3p::tagRFP + sto-3p::GFP::cla-1]. Reference: Reilly MB, et al. Widespread employment of conserved C. elegans homeobox genes in neuronal identity specification. bioRxiv 2022.04.29.490095; doi: https://doi.org/10.1101/2022.04.29.490095

otIs736 [cat-4p::mCherry + rol-6(su1006)]. evIs111 [F25B3.3::GFP + dpy-20(+)]. Rollers. Pan-neural GFP expression. The two HSN neurons are marked with both GFP and mCherry. Can be used to isolate HSN by FACS. Used by CeNGEN project for RNA-Seq (https://www.cengen.org/).

GFP tag inserted at the C-terminus of the endogenous ceh-48 locus by CRISPR. Allele obtained using Cas9-sgRNA ribonucleoprotein complex, following Dokshin et al, 2018 method. Reference: Leyva-Diaz E & Hobert O. Current Biol. 2022 Mar 3;S0960-9822(22)00262-7. PMID: 35259341

otEx7895 [nmr-1p::CyoFP + flp-3p::mNeptune + gcy-35p::mNeptune flp-7p::tagRFP + klp-6::tagRFP + C42D4.1::GFP]. Pick animals with red or green fluorescence to maintain. AxoPAL strain for visualizing axonal neighborhoods. Reference: Majeed M, et al. Sci Adv. 2025 Feb 21;11(8):eads2852. doi: 10.1126/sciadv.ads2852. PMID: 39983000.

CRISPR/Cas9 engineered tagged endogenous locus. Him. See description of strain OH15262 for full description of otIs669 NeuroPAL (Neuronal Polychromatic Atlas of Landmarks) transgene (Yemini E, et al. Cell. 2021 Jan 7;184(1):272-288.e11. PMID: 33378642). Reference: Reilly MB, et al. Widespread employment of conserved C. elegans homeobox genes in neuronal identity specification. bioRxiv 2022.04.29.490095; doi: https://doi.org/10.1101/2022.04.29.490095

CRISPR/Cas9 engineered tagged endogenous locus. Him. See description of strain OH15262 for full description of otIs669 NeuroPAL (Neuronal Polychromatic Atlas of Landmarks) transgene (Yemini E, et al. Cell. 2021 Jan 7;184(1):272-288.e11. PMID: 33378642). Reference: Reilly MB, et al. Widespread employment of conserved C. elegans homeobox genes in neuronal identity specification. bioRxiv 2022.04.29.490095; doi: https://doi.org/10.1101/2022.04.29.490095

CRISPR/Cas9 engineered tagged endogenous locus. Him. See description of strain OH15262 for full description of otIs669 NeuroPAL (Neuronal Polychromatic Atlas of Landmarks) transgene (Yemini E, et al. Cell. 2021 Jan 7;184(1):272-288.e11. PMID: 33378642). Reference: Reilly MB, et al. Widespread employment of conserved C. elegans homeobox genes in neuronal identity specification. bioRxiv 2022.04.29.490095; doi: https://doi.org/10.1101/2022.04.29.490095

Egl. See description of strain OH15262 for full description of otIs669 NeuroPAL (Neuronal Polychromatic Atlas of Landmarks) transgene (Yemini E, et al. Cell. 2021 Jan 7;184(1):272-288.e11. PMID: 33378642). Reference: Reilly MB, et al. Widespread employment of conserved C. elegans homeobox genes in neuronal identity specification. bioRxiv 2022.04.29.490095; doi: https://doi.org/10.1101/2022.04.29.490095

The Null Transcriptional Reporter (NuTR) cassette was used to remove the linc-36 locus resulting in a null allele and transcriptional reporter driving expression of GFP. The cassette contains the dominant sqt-1(e1350) allele that results in roller animals. Expression of Cre (via crossing into a strain expressing a germline Cre or by injection of a Cre transgene) will result in removal of the selectable markers and result in non-roller animals. Pick Rollers to retain full transgene cassette. GFP expression is seen in the sperm of both hermaphrodites and males.

otIs879 [sri-1p::NLS::GFP + pha-1(+)]. Reference: Reilly MB, et al. Widespread employment of conserved C. elegans homeobox genes in neuronal identity specification. bioRxiv 2022.04.29.490095; doi: https://doi.org/10.1101/2022.04.29.490095

ot1264 is a CRISPR deletion removing -10.8 kb to -1.8 kb before the first exon of ttx-1, made in the context of the ttx-1::GFP allele syb1679. Notably ttx-1 expression in RIB is lost, and RIB markers are off or dim. Reference: Reilly MB, et al. Widespread employment of conserved C. elegans homeobox genes in neuronal identity specification. bioRxiv 2022.04.29.490095; doi: https://doi.org/10.1101/2022.04.29.490095

Endogenous reporter generated by the insertion of SL2::GFP::H2B into the endogenous unc-18 locus. Expression in intestine and nervous system. Reference: Boeglin M, et al. Genetics. 2023 Dec 6;225(4):iyad180. doi: 10.1093/genetics/iyad180. PMID: 37793339.

ntIs1 [gcy-5p::GFP + lin-15(+)] V; integration of adEx1262 [gcy-5p::GFP + lin-15(+)]. otIs151 [ceh-36p::RFP + rol-6(su1006)]. Rollers. Both ASEL and ASER show GFP expression from ntIs1.

jcIs1 [ajm-1::GFP + unc-29(+) + rol-6(su1006)] IV. ajm-1 was formerly known as jam-1 (Junction Associated Protein) and "the gene encoding the antigen recognized by the monoclonal antibody MH27." jcIs1 consists of pJS191, C45D3 and pRF4. Reference: Koppen M, et al. Nat Cell Biol. 2001 Nov;3(11):983-91.

otIs151 [ceh-36p::RFP + rol-6(su1006)]. Expresses RFP in AWCL/R and ASEL/R. otEx2504 [gcy-28(prom1)::GFP + unc-122::GFP]. Expresses GFP in many head neurons, ventral cord and tail neurons, body wall muscle, hypodermis, somatic germline and intestine. Expresses bright GFP in coelomocytes. Rollers. Maintain by picking GFP+.

otIs3 [gcy-7::GFP + lin-15(+)] V. Heterozygotes are WT and GFP+ in the pharynx. ot59 is homozygous inviable. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. In WT animals, gcy-7::GFP expressed in ASEL. unc-37(ot59) mutants, otIs3 is expressed in both ASEL and ASER.

otIs114 [lim-6::GFP + rol-6(su1006)]. Rollers. Heterozygous strain. Heterozygotes should be fertile and segregate some sterile progeny. Maintain by picking plenty of animals with GFP in both ASEL and ASER; many of them will be sterile (homozygotes). otIs114 is normally expressed only in ASEL and excretory gland cell. Homozygous ot38; otIs114 is sterile and expresses GFP in both ASEL and ASER neurons. Heterozygotes display a semi-dominant, partially penetrant "ASEL + ASER" phenotype.

GFP tag inserted into endogenous clik-1 locus. CLIK-1::GFP is expressed in body wall muscle, vulval muscle, and myoepithelial sheath of the somatic gonad and co-localized with actin filaments. Reference: Ono S & Ono K. J Biol Chem. (2020) 295(34):12014-12027. PMID: 32554465

gaEx290 [elt-2::TY1::EGFP::3xFLAG(92C12) + unc-119(+)]. Pick non-Unc to maintain. TY1::EGFP::3xFLAG tag inserted in frame at C-terminus of coding sequence by recombineering. Recombineered fosmid was integrated by biolistic bombardment. References: Sarov, M, et al. Nat Methods (2006) 10:839-44. Mann F, et al. PLoS. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs689 [dmd-10::TY1 EGFP 3xFLAG + C27D6.4::TY1::EGFP::3xFLAG + unc-119(+).] NOTE: Waterston Lab reports that this strains carries both dmd-10 and C27D6.4 transgenes.

CRISPR/Cas9 engineered 1515 bp deletion of gmap-1; flanking sequences ACCTATCCAAAGCTT and TGCCAAGACATTGAA. Dessication sensitive. Shorter body length. Increased permeability of the cuticle. Reference: Ngale Njume F, et al. iScience. 2022 Oct 14;25(11):105357. doi: 10.1016/j.isci.2022.105357. PMID: 36339267.

Parental strain is Caenorhabditis briggsae G16. Throws males, about 12%. Brood size is low, about 35. Males mate well. mih-1 is autosomal.

Parental strain is Caenorhabditis briggsae G16. Throws males, about 18%. Brood size is low, about 60. Males mate well. mih-2 is autosomal.

Male-female strain. From association with a terrestrial isopod, Trachelipus rathkii, that was collected from Cox Arboretum, Dayton Ohio. Species ID confirmed by mating test with EM464.

Male-female strain. This is a 20X inbred (one gravid female per generation) derivative of LKC28, which is conspecific with CB5161. This is the strain that will be used for genome sequencing by Erich Schwarz/John Spieth. sp. 4 in Kiontke and Sudhaus Wormbook Ecology chapter.

ccIs126 [myo-2p::lacZ + unc-54(+)]. lacZ expression in pharyngeal and body wall muscles. Superficially wild-type, but gives some paralyzed animals.

oxIs322 [myo-2p::mCherry::H2B + myo-3p::mCherry::H2B + Cbr-unc-119(+)] II. ccTi1594 [mex-5p::GFP::gpr-1::smu-1 3'UTR + Cbr-unc-119(+), III: 680195] III. umnIs7 [myo-2p::GFP + NeoR, III:9421936] III. mCherry expression in pharyngeal and body wall muscle nuclei. GFP expression in germline and GFP expression in pharynx. High penetrance of non-Mendelian inheritance. Neomycin resistant. The GPR-1 overexpression transgene consistently confers a high penetrance of non-Mendelian inheritance; fluorescent markers allow tracking of Mendelian and non-Mendelian events. The genomic location of ccTi1594 is with respect to the WEBcel235 assembly.