Search Strains

ltSi220 [mex-5p::GFP::tbb-2::operon-linker::mCherry::his-11 + Cbr-unc-119(+)] I. ltSi1561 [spd-2p::spd-5(S170A T178A T198A S653A S658A)::spd-5 3'UTR + Cbr-unc-119(+)] II. mCherry-labeled histones. GFP-labeled microtubules. Reference: Ohta M, et al. J Cell Biol. 2021 Feb 1;220(2):e202009083. doi: 10.1083/jcb.202009083. PMID: 33399854.

ltSi1668 [cyb-3p::mNeonGreen::cyb-3(re-encoded)::cyb-3 3'UTR + Cbr-unc-119(+)] I. CYB-3::mNG reporter using its own promoter and UTR; cyb-3 was re-encoded to confer resistance to dsRNA targeting endogenous cyb-3.

ltSi240 [csr-1p::csr-1(re-encoded) + Cbr-unc-119(+)] II. The csr-1 coding sequence in the transgene was re-encoded for RNAi-resistance (see Gerson-Gurwitz A, et al. Cell. 2016, Supplementary Figure S3A). Reference: Gerson-Gurwitz, et al. Cell. 2016 Apr 7;165(2):396-409.

ltSi242 [csr-1p::csr-1(re-encoded; D606A, D681A: isoform b numbering) + Cbr-unc-119(+)] II. The csr-1 coding sequence in the transgene was re-encoded for RNAi-resistance (see Gerson-Gurwitz A, et al. Cell. 2016, Supplementary Figure S3A). Reference: Gerson-Gurwitz, et al. Cell. 2016 Apr 7;165(2):396-409.

ltSi264 [bub-1p::bub-1(re-encoded)::RFP + Cbr-unc-119(+)] II. BUB-1::RFP has been re-coded to be knl-1(RNAi) resistant. Reference: Pelisch F, et al. Mol Cell. 2017 Jan 5;65(1):66-77. doi: 10.1016/j.molcel.2016.11.001. PMID: 27939944

drSi12 [hsf-1p::human hsf-1::GFP::unc-54 3'UTR + Cbr-unc-119(+) II. Human hsf-1 cDNA with a C-terminal GFP and controlled by 4 kb of the C. elegans hsf-1 promoter, integrated at a single copy by MosSCI on chromosome II at ttTi5605 in EG4322. Exhibits nuclear GFP expression that redistributes into granules only after prolonged (1 hr) 35C heat shock. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

drSi13 [hsf-1p::hsf-1::GFP::unc-54 3'UTR + Cbr-unc-119(+)] II. hsf-1 cDNA with a C-terminal GFP and controlled by 4 kb of the hsf-1 promoter, integrated at a single copy by MosSCI on chromosome II at ttTi5605 in EG4322. Exhibits nuclear GFP expression that redistributes into granules after >1 min 35C heat shock. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

drSi12 [hsf-1p::human hsf-1::GFP::unc-54 3'UTR + Cbr-unc-119(+)] II. Expresses single-copy human HSF1 (drSi12) in hsf-1(sy441) hypomorph. drSi12 includes human hsf-1 cDNA with a C-terminal GFP and controlled by 4 kb of the C. elegans hsf-1 promoter, integrated at a single copy by MosSCI on chromosome II at ttTi5605. Larval arrest at 25C. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

drSi13 [hsf-1p::hsf-1::GFP::unc-54 3'UTR + Cbr-unc-119(+)] II. Expresses single-copy C. elegans HSF-1 (drSi13) in hsf-1(sy441) hypomorph. drSi13 includes hsf-1 cDNA with a C-terminal GFP and controlled by 4 kb of the hsf-1 promoter, integrated at a single copy by MosSCI on chromosome II at ttTi5605. Moderate rescue of sy441 25C growth arrest, but should be maintained at 20C or lower. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

drSi28 [hsf-1p::hsf-1(R145A)::GFP::unc-54 3'UTR + Cbr-unc-119(+)] II. hsf-1 cDNA containing an arginine to alanine mutation at residue 145 in the DNA binding domain, with a C-terminal GFP and under control of 4 kb of the hsf-1 promoter, integrated at a single copy by MosSCI on chromosome II at ttTi5605 in EG4322. Exhibits nuclear GFP expression that redistributes into granules at a reduced rate compared to wild type immediately after 1 min 35C heat shock. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

drSi13 [hsf-1p::hsf-1::GFP::unc-54 3'UTR + Cbr-unc-119(+)] II. Expresses single-copy drSi13 in the background of balanced hsf-1(ok600). drSi13 includes hsf-1 cDNA with a C-terminal GFP and controlled by 4 kb of the hsf-1 promoter, integrated at a single copy by MosSCI on chromosome II at ttTi5605. Segregates WT GFP+ heterozygotes, non-GFP rescued ok600; drSi13 homozygotes, very rare GFP+ homozygous hT2, and dead eggs. Maintain by picking wild-type GFP+. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

drSi28 [hsf-1p::hsf-1(R145A)::GFP::unc-54 3'UTR + Cbr-unc-119(+)] II. Expresses single-copy drSi28 in hsf-1(sy441) hypomorph. drSi28 includes hsf-1 cDNA containing an arginine to alanine mutation at residue 145 in the DNA binding domain, with a C-terminal GFP and under control of 4 kb of the hsf-1 promoter, integrated at a single copy by MosSCI on chromosome II at ttTi5605. Larval arrest at 25C. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

drSi28 [hsf-1p::hsf-1(R145A)::GFP::unc-54 3'UTR + Cbr-unc-119(+)] II. Expresses single-copy drSi28 in the background of balanced hsf-1(ok600). drSi28 includes hsf-1 cDNA containing an arginine to alanine mutation at residue 145 in the DNA binding domain with a C-terminal GFP and controlled by 4 kb of the hsf-1 promoter, integrated at a single copy by MosSCI on chromosome II at ttTi5605. Segregates WT GFP+ heterozygotes, non-GFP ok600 homozygotes (not rescued by drSi28), very rare GFP+ homozygous hT2, and dead eggs. Maintain by picking wild-type GFP+. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

drSi41 [hsf-1p::hsf-1::HA::unc-54 3'UTR + Cbr-unc-119(+)] II. hsf-1 cDNA containing an HA tag in frame between amino acids 370 and 371, under control of 4 kb of the hsf-1 promoter, integrated as a single copy by MosSCI on chromosome II at ttTi5605 in EG4322. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

drSi41 [hsf-1p::hsf-1::HA::unc-54 3'UTR + Cbr-unc-119(+)] II. Expresses single-copy drSi41 in hsf-1(sy441) hypomorph. drSi41 includes hsf-1 cDNA containing an HA tag in frame between amino acids 370 and 371, under control of 4 kb of the hsf-1 promoter, integrated as a single copy by MosSCI on chromosome II at ttTi5605. Moderate rescue of sy441 25C growth arrest, but should be maintained at 20C or lower. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

ieSi57 [eft-3p::TIR1::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. The endogenous unc-3 locus is tagged with mNeonGreen and AID* degron. mNeonGreen expression is seen in the cholinergic motor neurons, command interneurons, and ASI. Reference: Patel T, Hobert O. Elife. 2017 Apr 19;6:e24100. doi: 10.7554/eLife.24100. PMID: 28422646.

otSi2 [ges-1p::TIR1(F79G)::mRuby::unc-54 3'UTR + Cbr-unc-119(+) *ieSi61] II. Temperature-senstive daf(c): maintain at 15C. Intestine-specific TIR1 sequence in ieSi61 allele was edited to TIR1(F79G) using CRISPR/Cas9 to make it compatible with AID2. [TCC GTC GAG CTC AAG GGA AAG CCA CAC TTC] edited to [AGT GTC GAA TTG AAG GGA AAG CCA CAC GGA]. This strain can be used to deplete DAF-16 specifically from the intestine with the modified auxin 5-Ph-IAA. Constitutive dauer formation at 25 C due to daf-2(e1370). Reference: Sural S, et al. Sci Adv. 2025 Sep 26;11(39):eadw1270. doi: 10.1126/sciadv.adw1270. PMID: 40991693.

T2A::GFP::H2B tag inserted before STOP codon of endogenous Cbr-unc-25 locus using CRISPR/Cas9. Generated in C. briggsae AF16 background. Reference: Toker IA, et al. bioRxiv 2024.11.23.624988; doi: https://doi.org/10.1101/2024.11.23.624988.

T2A::mScarlet3::H2B tag inserted before STOP codon of endogenous Cbr-unc-17 locus using CRISPR/Cas9. Generated in C. briggsae AF16 background. Reference: Toker IA, et al. bioRxiv 2024.11.23.624988; doi: https://doi.org/10.1101/2024.11.23.624988.

otSi2 [ges-1p::TIR1(F79G)::mRuby::unc-54 3'UTR + Cbr-unc-119(+) *ieSi61] II. Intestine-specific TIR1 sequence in ieSi61 allele was edited to TIR1(F79G) using CRISPR/Cas9 to make it compatible with AID2. [TCC GTC GAG CTC AAG GGA AAG CCA CAC TTC] edited to [AGT GTC GAA TTG AAG GGA AAG CCA CAC GGA]. This strain can be used to deplete DAF-16 specifically from the intestine with the modified auxin 5-Ph-IAA. Reference: Sural S, et al. Sci Adv. 2025 Sep 26;11(39):eadw1270. doi: 10.1126/sciadv.adw1270. PMID: 40991693.

SL2::mScarlet3::H2B tag inserted after STOP codon of endogenous Cbr-unc-25 locus using CRISPR/Cas9. Generated in C. briggsae AF16 background. Reference: Toker IA, et al. bioRxiv 2024.11.23.624988; doi: https://doi.org/10.1101/2024.11.23.624988.

yokSi3 [spe-11p::trp-3A::TagRFP-T::tbb-2 3'UTR + Cbr-unc-119(+)] II. Reference: Takayama J & Onami S. Cell Rep. 2016 Apr 19;15(3):625-637.

yokSi3 [spe-11p::trp-3A::TagRFP-T::tbb-2 3'UTR + Cbr-unc-119(+)] II. Reference: Takayama J & Onami S. Cell Rep. 2016 Apr 19;15(3):625-637.

yokSi10 [trp-3p::GFP::H2B::trp-3 3'UTR + Cbr-unc-119(+)] II. GFP marker can be used for visualization of sperm. Reference: Takayama J & Onami S. Cell Rep. 2016 Apr 19;15(3):625-637.

ieSi57 [eft-3p::TIR1::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. Single copy transgene inserted into chromosome II (oxTi179) expressing modified Arabidopsis thaliana TIR1 tagged with mRuby in the soma. Endogenous osm-6 locus tagged with GFP and AID allows for inducible cilia disruption upon application of auxin. Reference: Varandas KC, et al. Nat Commun. 2025 Jan 2;16(1):79. doi: 10.1038/s41467-024-55674-0. PMID: 39747235.

stIs20120 [Cbr-myo-2p::GFP + Cbr-unc-119(+)] X. Him. Reference: Ragavapuram V, et al. G3 (Bethesda). 2015 Dec 31.

ccTi1594 [mex-5p::GFP::gpr-1::smu-1 3'UTR + Cbr-unc-119(+), III: 680195] III. GFP expression in germline. Transgene rescues unc-119(ed3). Improved GPR-1 over-expression transgene appears to be stably expressed in the germline at a wide range of temperatures and does not require special handling. (unlike other GPR-1 overexpressing transgenes previously described in the literature). The GPR-1 overexpression transgene consistently confers a high penetrance of non-Mendelian inheritance. Neomycin resistant. The genomic location of ccTi1594 is with respect to the WEBcel235 assembly.

ccTi1594 [mex-5p::GFP::gpr-1::smu-1 3'UTR + Cbr-unc-119(+), III: 680195] III. hjSi20 [myo-2p::mCherry::unc-54 3'UTR] IV. GFP expression in germline. mCherry expression in pharynx. The ccTi1594 transgene rescues unc-119(ed3). High penetrance of non-Mendelian inheritance. 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.

ccTi1594 [mex-5p::GFP::gpr-1::smu-1 3'UTR + Cbr-unc-119(+), III: 680195] III. umnIs7 [myo-2p::GFP + NeoR, III:9421936] III. 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.

ccTi1594 [mex-5p::GFP::gpr-1::smu-1 3'UTR + Cbr-unc-119(+), III: 680195] III. umnIs27 [myo-2::GFP + NeoR, III: 8856215 (intergenic)] III. 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.

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.

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. mCherry expression in pharyngeal and body wall muscle nuclei. GFP expression in germline. High penetrance of non-Mendelian inheritance. 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.

ieSi57 [eft-3p::TIR1::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. GFP, AID*, 3xFLAG, and 3xGAS tags inserted into endogenous Y47D3A.21 locus. Reference: Sharma N, et al. bioRxiv [Preprint]. 2024 Jan 19:2024.01.16.575916. doi: 10.1101/2024.01.16.575916. PMID: 38293206.

syEx1155 [myo-3p::tomm-20::mRFP::3xMyc + Cbr-unc-119(+)]. Maintain at 15C. Pick non-Unc to maintain array.

Do not distribute this strain; other labs should request it from the CGC.

vhIs24 [vha-6p::GFP::rab-5 Q78L + Cbr-unc-119(+)].  Large endosomes in the intestinal cells.

vhIs12 [vha-6p::GFP::tbc-2 + Cbr-unc-119(+)] II.  vhIs12 is inserted to the left of tbc-2(m2241) in LG II. GFP::TBC-2 rescues the large endosome phenotype in the intestine of tbc-2(tm2241) animals. Outside the intestine, tbc-2(tm2241) animals have large yolk platelets in the oocytes and early embryos that are not rescued.

vhIs1 [vha-6p::mCherry::tbc-2 + Cbr-unc-119(+)].  mCherry::TBC-2 is expressed in the intestine.

vhIs6 [vha-6p::mCherry::tbc-2(R689K) + Cbr-unc-119(+)].  mCherry::TBC-2(R689K) is expressed in the intestine.

ieSi57 [eft-3p::TIR1::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. AID* tag inserted into endogenous daf-2 locus. ieSi57 is a single-copy transgene insertion into chromosome II (oxTi179) expressing modified Arabidopsis thaliana TIR1 tagged with mRuby in the soma. This strain can be used for auxin-inducible degradation (AID) of target proteins in somatic tissues. Reference: Venz R, et al. Elife. 2021 Sep 10;10:e71335. doi: 10.7554/eLife.71335. PMID: 34505574.

hutSi2642 [hsp-90p::mCherry::unc-54 3'UTR + Cbr-unc-119 (+)] II. Expresses a single copy of mCherry from hsp-90 promoter; construct utilizes the unc-54 terminator and 3'UTR. Can be used as a standard for multicolor imaging and quantitative microscopy. hsp-90 previously known as daf-21. Reference: Sands B, et al. 2018. Translational Medicine of Aging Volume 2, January 2018, Pages 1–10.

hutSi2661 [hsp-90p::eGFPT::unc-54 3'UTR + Cbr-unc-119 (+)] II. Expresses a single copy of mEGFP from hsp-90 promoter; construct utilizes the unc-54 terminator and 3'UTR. Can be used as a standard for multicolor imaging and quantitative microscopy. hsp-90 previously known as daf-21. Reference: Sands B, et al. 2018. Translational Medicine of Aging Volume 2, January 2018, Pages 1–10.

uthSi17 [myo-3p::MLS::GFP::unc-54 3’UTR + Cbr-unc-119(+)] I. Single-copy insertion. MLS::GFP reporter uses myo-3 promoter and atp-1 mitochondrial localization sequence; localizes to mitochondrial matrix in body-wall muscle cells. Derived by out-crossing parental strain AGD1664 (EG6701 background) to N2. Reference: Kim J, et al. J Vis Exp. 2025 Jan 17:(215). doi: 10.3791/67610. PMID: 39895615.

uthSi83 [col-19p::MLS::GFP(65C)::unc-54 3'UTR + Cbr-unc-119(+)] I. Single-copy insertion. MLS::GFP reporter uses col-19 promoter and atp-1 mitochondrial localization sequence; localizes to mitochondrial matrix in hypodermal cells beginning in late L4 stage. Derived by out-crossing parental strain AGD2837 (EG6701 background) to N2. Reference: Kim J, et al. J Vis Exp. 2025 Jan 17:(215). doi: 10.3791/67610. PMID: 39895615.

uthSi80 [vha-6p::MLS::GFP(65C)::unc-54 3'UTR + Cbr-unc-119(+)] IV. Single-copy insertion. MLS::GFP reporter uses vha-6 promoter and atp-1 mitochondrial localization sequence; localizes to mitochondrial matrix in intestinal cells. Derived by out-crossing parental strain AGD2805 (EG6703 background) to N2. Reference: Kim J, et al. J Vis Exp. 2025 Jan 17:(215). doi: 10.3791/67610. PMID: 39895615.

uthSi7 [myo-3p::LifeAct::mRuby::unc-54 3'UTR, Cbr-unc-119(+)] IV. Single-copy insertion of LifeAct::mRuby labels F-actin in body wall muscle cells. Out-crossed to N2. Reference: Higuchi-Sanabria R, et al. Mol Biol Cell. 2018 Oct 15;29(21):2522-2527. doi: 10.1091/mbc.E18-06-0362. PMID: 30133343

uthSi10 [col-19p::LifeAct::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] IV. Integrated into cxTi10816. Single-copy insertion of LifeAct::mRuby labels F-actin in hypodermis beginning at late L4 stage. Out-crossed to N2. Reference: Higuchi-Sanabria R, et al. Mol Biol Cell. 2018 Oct 15;29(21):2522-2527. doi: 10.1091/mbc.E18-06-0362. PMID: 30133343

uthSi13 [gly-19p::LifeAct::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] IV. Integrated into cxTi10816. Single-copy insertion of LifeAct::mRuby labels F-actin in intestinal cells. Out-crossed to N2. Reference: Higuchi-Sanabria R, et al. Mol Biol Cell. 2018 Oct 15;29(21):2522-2527. doi: 10.1091/mbc.E18-06-0362. PMID: 30133343

Severing and tagging of endogenous unc-22 locus with trans-splicing ICR and GFP using CRISPR/Cas9. muIs252 [eft-3p::wrmScarlet1-10::unc-54 3'UTR + Cbr-unc-119(+)] II. Pharynx and body muscles are green and red fluorescent and visible by dissection fluorescence microscopy. Please contact Ryan Littlefield prior to publishing work using this strain.

pwIs503 [vha-6p::mans::GFP + Cbr-unc-119(+)]. This strain expresses an intestine-specific GFP marker for the Golgi apparatus (a fragment of C. elegans alpha-mannosidase II (F58H1.1, first 82 aa including signal sequence/TM-anchor domain as in Rolls et al., 2002). This fusion protein is expressed under the control of the vha-6 promoter.