Search Strains

gsgIs5 [synthetic 900 bp HA1 left::dpy-10 cRNA site:: synthetic 900 bp HA2 right] (III: 7007779). Superficially wild-type. gsgIs5 can be used to generate single-copy insertions in C. elegans Chromosome III. This strain is part of the SKI PLACE System, which can be used to generate single-copy insertions into the C. elegans genome at specific safe harbor locations on each chromosome through CRISPR-Cas9-mediated insertion. The system uses a single plasmid, pSKI (Addgene #232484), to insert transgenes at specific genomic locations. Generated in N2 background. Reference: Dinneen E, et al. G3 (Bethesda). 2025 Sep 19:jkaf220. doi: 10.1093/g3journal/jkaf220. PMID: 40973646.

gsgIs8 [synthetic 900 bp HA1 left::dpy-10 cRNA site:: synthetic 900 bpHA2 right] (X: 798667). Superficially wild-type. gsgIs8 can be used to generate single-copy insertions in C. elegans Chromosome X. This strain is part of the SKI PLACE System, which can be used to generate single-copy insertions into the C. elegans N2 genome at specific safe harbor locations on each chromosome through CRISPR-Cas9-mediated insertion. The system uses a single plasmid, pSKI (Addgene #232484), to insert transgenes at specific genomic locations. Generated in N2 background. Reference: Dinneen E, et al. G3 (Bethesda). 2025 Sep 19:jkaf220. doi: 10.1093/g3journal/jkaf220. PMID: 40973646.

gsgIs3 [synthetic 900 bp HA1 left::dpy-10 cRNA site:: synthetic 900 bp HA2 right] (II: 9834540). Superficially wild-type. gsgIs3 can be used to generate single-copy insertions in C. elegans Chromosome II. This strain is part of the SKI PLACE System, which can be used to generate single-copy insertions into the C. elegans genome at specific safe harbor locations on each chromosome through CRISPR-Cas9-mediated insertion. The system uses a single plasmid, pSKI (Addgene #232484), to insert transgenes at specific genomic locations. Generated in N2 background. Reference: Dinneen E, et al. G3 (Bethesda). 2025 Sep 19:jkaf220. doi: 10.1093/g3journal/jkaf220. PMID: 40973646.

gsgIs4 [synthetic 900 bp HA1 left::dpy-10 cRNA site:: synthetic 900 bp HA2 right] (V: 8644845). Superficially wild-type. gsgIs4 can be used to generate single-copy insertions in C. elegans Chromosome V. This strain is part of the SKI PLACE System, which can be used to generate single-copy insertions into the C. elegans N2 genome at specific safe harbor locations on each chromosome through CRISPR-Cas9-mediated insertion. The system uses a single plasmid, pSKI (Addgene #232484), to insert transgenes at specific genomic locations. Generated in N2 background. Reference: Dinneen E, et al. G3 (Bethesda). 2025 Sep 19:jkaf220. doi: 10.1093/g3journal/jkaf220. PMID: 40973646.

Dpy. Precocious heterochronic. Reduced brood size. There may be a linked Dpy mutation in this strain.

rjSi1 [cra-1p::cra-1::GFP::cra-1 3'UTR + Cbr-unc-119(+)] II. Single copy insertion. cra-1 promoter, cra-1::GFP and 3'UTR was cloned into pCFJ150 (ttTi5605) vector and inserted into ttTi5605 of EG4322 strain. Outcrossed three times to N2 Bristol; could still carry unc-119(ed9) in the background. Superficially wild-type. This CRA-1::GFP fusion construct has been shown to be functional and its localization reflects endogenous CRA-1 localization. rjSi1 transgene can rescue synapsis defects of cra-1 mutants and restore cross-over events (six bivalents instead of the 11 to 12 univalents characteristic of cra-1 mutants). Brood size and embryonic lethality were significantly, albeit not completely, restored in the rescued line suggesting that the GFP tag might affect other CRA-1 functions. Reference: Gao J, et al. PLOS Genetics 11(3): e1005029. https://doi.org/10.1371/journal.pgen.1005029

kyIs4 [ceh-23p::unc-76::GFP + lin-15(+)] X. kyIs4 contains a fragment of unc-76 protein that drives enrichment of GFP in the axons. Posteriorly displaced nerve ring axons. This strain may contain lin-15(n765) X. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs4 [ceh-23p::unc-76::GFP + lin-15(+)] X. kyIs4 contains a fragment of unc-76 protein that drives enrichment of GFP in the axons. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs30 [glr-1::GFP + lin-15(+)]. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs4 [ceh-23p::unc-76::GFP + lin-15(+)] X. kyIs4 contains a fragment of unc-76 protein that drives enrichment of GFP in the axons. Posteriorly displaced nerve ring axons. This strain may contain lin-15(n765) X. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs4 [ceh-23p::unc-76::GFP + lin-15(+)] X. kyIs4 contains a fragment of unc-76 protein that drives enrichment of GFP in the axons. sax-6 is temperature sensitive. Posterior axon from amphid neuron. This strain may contain lin-15(n765) X. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs4 [ceh-23p::unc-76::GFP + lin-15(+)] X. kyIs4 contains a fragment of unc-76 protein that drives enrichment of GFP in the axons. sax-9 is temperature senstive. Amphid axon guidance defects (termination, guidance). This strain may contain lin-15(n765) X. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

sax-3 mutants have an anteriorly-displaced nerve ring, defects in axon guidance to the ventral midline, and extra axon crossing at the ventral midline. There are also defects in CAN and HSN cell migration, a notched head and an Egl phenotype. This allele is 80% lethal in embryonic stages. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs37 [odr-10::GFP + lin-15(+)] II. No lin-15 mutation in background. Translational fusion; first few amino acids of odr-10. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs53[odr-10::GFP]. Full length odr-10. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Temperature sensitive. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs39 [sra-6::GFP + lin-15(+)]. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Amphid axon guidence defect. HSN axon guidence defect. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs105 [str-3p::snb-1::GFP + lin-15(+)]. Also known as str-3::VAMP::GFP or ASI::VAMP::GFP or M7::VAMP::GFP. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs128 [str-3::GFP + lin-15(+)]. kyIs128 encodes a translational fusion contaning 4aa coding sequence (M7.13::GFP). Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs140 [str-2::GFP + lin-15(+)] I. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs156 [str-1p::odr-10(cDNA)::GFP]. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs140 [str-2::GFP + lin-15(+)] I. In ky399 mutants str-2::GFP is expressed in both AWX neurons. ky399 is a semi-dominant allele of slo-1, a large conductance potassium channel. PKA nsy-3(ky399). Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs150 [tax-2(delta)::GFP + lin-15(+)]. sax-1 is temperature-sensitive. ky491 was isolated by PCR from a deletion library. [NOTE: (12/29/2020) This strain has been found to actually be carrying the ky491 deletion allele of sax-1, not the ky211 point mutation as previously reported.] ky491 is a 1263 bp deletion in sax-1 (left flanking sequence: atgaagcccagg ctgtgaataaattgaatg, right flanking sequence: ccaatcacagtcagcctccgataaaatgtc). Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Double mutants with ocr-2 have reduced AWA gene expression. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Chemosensory, mechanosensory, and osmosensory defects. Null allele. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs140 [str-2::GFP + lin-15(+)] I. In ceh-36 mutants, both AWC cells fail to take on the AWC fate. ceh-36 is also required for the specification of the ASEL identity. ceh-36 encodes a member of the OTX/OTD family of homeodomain proteins. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

kyIs140 [str-2::GFP + lin-15(+)] I. In ceh-26 mutants, both AWC cells fail to take on the AWC fate. ceh-36 is also required for the specification of the ASEL identity. ceh-36 encodes a member of the OTX/OTD family of homeodomain proteins. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects. Originally had kyEx648 [unc-86 + syg-1::GFP] in this strain, but the CGC stock does not contain the array.

kyIs235 [unc-86::snb-1::YFP + unc-4p::lin-10::RFP(intron) + odr-1::RFP]. Also known as unc-86::VAMP::YFP. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

rexEx10 [hsp-16p::his-6::Halo + mec-7p::mRFP]. Pick RFP+ to maintain. Constitutive red fluorescence in touch-receptor neurons. Heat shock induces the expression of Halo protein.

zdIs5 [mec-4p::GFP + lin-15(+)] I. SK4005 was outcrossed 10x to produce this strain.

juEx4586 [rgef-1p::GFP1-10 + ttx-3p::RFP]. Pick RFP+ to maintain. RFP expression in AIY neuron. Weak light green signals were observed in the neurons using compound scope although this is only the former half of the split GFP. Reference: Noma K, et al. Elife. 2017 Aug 2;6:e26376. doi: 10.7554/eLife.26376.

Gain-of-function allele isolated sem-4; juIs1 screen in 1997. ju89 has slightly semi-dominant effects, and the gf phenotype is most obvious in homozygous. This outcrossed strain does not carry a sem-4 mutation or juIs1. References: Kurup N, et al. Curr Biol. 2015 Jun 15;25(12):1594-605. Kurup N, et al. PLoS Genet. 2017 Jun 21;13(6):e1006844.

juSi164 [mex-5p::HIS-72::miniSOG + Cbr-unc-119(+)] III. Maintain in the covered box to avoid unnecessary exposure to ambient light. Wild-type behavior in movement, mating, growth and brood size. Upon blue light treatment (460 nm LED light for 30 min at 4 Hz with 2 mW/mm2), Histone-miniSOG in the germline can induce heritable mutations. Wild-type behavior in movement, mating, growth and brood size. MosSCI insertion into oxTi444 on Chr. III. Reference: Noma K & Jin Y. Nature Communications, 2015.

Starved. Lacks M3 spikes. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be used for any commercial purpose or for work on human subjects.

Moderate resistance to ivermectin. NOTE: originally described as carrying ad1302, but reported to actually be ad1305; see strain JD740 for verified avr-14(ad1302) I; avr-15(ad1051) V double mutant. Do not distribute this strain; other labs should request it from the CGC.

Highly resistant to ivermectin. This strain cannot be sent to commercial recipients without approval from UT Southwestern. Do not distribute this strain; other labs should request it from the CGC. Received new stock 5/21/08. [NOTE: The correct genotype of this strain is avr-14(ad1305) I; avr-15(vu227) glc-1(pk54) V. This strain was incorrectly annotated as avr-14(ad1302) I; avr-15(ad1051) glc-1(pk54) V. when submitted to the CGC.]

Lacks M3 spikes. glc-1(pk54::Tc1). This strain cannot be sent to commercial recipients without approval from UT Southwestern. Do not distribute this strain; other labs should request it from the CGC. Received new stock 5/21/08. [NOTE: The correct genotype of this strain is avr-15(vu227) glc-1(pk54) V. This strain was incorrectly annotated as avr-15(ad1051) glc-1(pk54) V. when submitted to the CGC.]

WT. This strain cannot be sent to commercial recipients without approval from UT Southwestern. Do not distribute this strain; other labs should request it from the CGC.

glc-1(pk54::Tc1). High level of ivermectin resistance. This strain cannot be sent to commercial recipients without approval from UT Southwestern. Do not distribute this strain; other labs should request it from the CGC.

Small intragenic deletion. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations.

adEx1750 [pmk-3::GFP + rol-6(su1006)]. Pick Rollers to maintain. Nuclear GFP in anterior and posterior intestine. [NOTE: adEx1750 contains a F42G8.4::GFP reporter construct. This array had been previously described as carrying a pmk-1::GFP reporter; the description of the array was updated in CGC records ~2016. islo-1, pmk-3, pmk-2, and pmk-1 are in an operon. The order of genes was described in Berman et al. as [pmk-1(F42G8.4)->pmk-2(F42G8.3)->pmk-3(B0218.3)], but the official WormBase gene names were assigned in reverse order [pmk-1(B0218.3)->pmk-2(F42G8.3)->pmk-3(F42G8.4)]. See Berman K, et al. Mol Cell Biol Res Commun. 2001 Nov;4(6):337-44. PMID: 11703092 for additional information.]

Bacteria. Comamonas sp., a bacterium on which C. elegans grows particularly well. Str-R. DA1877 is derived from a bacterium isolated from soil in the Dallas area by Boris Shtonda in 2002. That strain was called H39 in Avery, L, Shtonda, BB (2003), "Food transport in the C elegans pharynx", J Exp Biol 206: 2441-2457. It was identified as genus Comamonas by 16S rDNA sequencing, as described in the paper. [NOTE: Watson, et al (PMID: 24529378) report using 16S rRNA gene sequence to identify this strain as Comamonas aquatica.] L. Avery isolated a spontaneous streptomycin-resistant variant by selecting for growth in LB broth + 200 ug/ml streptomycin sulfate. This strain, when spread on NGMSR plates, gave rise to faster-growing papillae; one of these was streaked out to get DA1877. Biosafety Level: BSL-1.

Bacteria. Str-R. L10 papilla 2; sporulation-defective mutant. This is a low-quality food that is difficult for the worms to eat, and is useful for studies of the effect of food on behavior, physiology, etc. [NOTE: This strain grows better on NGM than on LB media in CGC.] Described in J Exp Biol 206: 2441-2457. Biosafety Level: BSL-1.

Bacteria. Str-R. Streak and maintain on Str+ plates. NGMSR+. Faster growing papilla on NGMSR. [NOTE: This strain grows better on NGM than on LB media in CGC.] Biosafety Level: BSL-1.

Bacteria. Contains eat-5 rescuing plasmid pRE5-7. Amp-R. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. Biosafety Level: BSL-1.

Abnormal feeding. Strong relaxation defective. NOTE: This strain is reportedly homozygous for an unknown X-linked unc mutation (10/31/2017).

This endogenous tag on ATG-9 was made from a CRISPR event that used a method described by Dickinson et al. 2015 to efficiently insert GFP in replace of the stop codon of atg-9. Reference: Stavoe AK, et al. Dev Cell. 2016 Jul 25;38(2):171-85.

uonEx1 [unc-54::alpha-synuclein::CFP + unc-54::alpha-synuclein::YFP(Venus)]. Pick fluorescent animals to maintain. No additional transformation marker was included in the array. uonEx1 also known as SC+SV in reference publications. Reduced lifespan (25-35% lower) and reduced pharyngeal pumping rate compared to N2. Novel transgenic strain for monitoring the influence of genetic and/or environmental factors on the extent of alpha-synuclein aggregation using FRET signals. Because the two fusion proteins are separate, FRET is only possible when synuclein aggregation brings a CFP tag very close to a YFP tag within an aggregate. We suggest using this strain in conjunction with the positive control (high FRET) strain DDP2 or with strain NL5901 which shows opposite changes in FRET. References: Nagarajan A, et al. CNS Neurol Disord Drug Targets. 2015 Aug 21. Bodhicharla R, et al. CNS Neurol Disord Drug Targets. 2012 Dec;11(8):965-75.