Search Strains

otIs927 [ges-1p::nlp-40::tagRFP-T::SL2::GFP::his-44::tbb-2 3’ UTR + inx-6(prom18)::tagRFP-T::unc-54 3' UTR] V. Transgene allows monitoring of the secretion of NLP-40 neuropeptide from the intestine under different physiological conditions. The multicopy array was inserted at the oxTi553 landing site using the Fluorescent Landmark Interference (FLInt) method. Reference: Sural S, et al. Sci Adv. 2025 Sep 26;11(39):eadw1270. doi: 10.1126/sciadv.adw1270. PMID: 40991693.

otIs937 [ceh-19(prom2)::daf-2(DN)::eBFP2::SL2::tagRFP-T::tbb-2 3' UTR + unc-122p::GFP::unc-54 3' UTR] V. daf-2(DN) encodes a dominant negative form of the DAF-2 protein, causing inhibition of the insulin receptor DAF-2. daf-2(DN) encodes a dominant negative form of the DAF-2 protein, causing inhibition of the insulin receptor DAF-2. ceh-19(prom2) drives expression of daf-2(DN) specifically in the MC neurons in the pharyngeal nervous system. The multicopy array was inserted at the oxTi553 landing site using the Fluorescent Landmark Interference (FLInt) method. Reference: Sural S, et al. Sci Adv. 2025 Sep 26;11(39):eadw1270. doi: 10.1126/sciadv.adw1270. PMID: 40991693.

otIs942 [tph-1(prom5)::daf-2(DN)::eBFP2::SL2::tagRFP-T::tbb-2 3' UTR + unc-122p::GFP::unc-54 3' UTR] V. daf-2(DN) encodes a dominant negative form of the DAF-2 protein, causing inhibition of the insulin receptor DAF-2. daf-2(DN) encodes a dominant negative form of the DAF-2 protein, causing inhibition of the insulin receptor DAF-2. tph-1(prom5) drives expression of daf-2(DN) specifically in the NSM neurons. The multicopy array was inserted at the oxTi553 landing site using the Fluorescent Landmark Interference (FLInt) method. 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-cat-1 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.

SL2::mScarlet3::H2B tag inserted after STOP codon of endogenous Ctr-cat-1 locus using CRISPR/Cas9. Generated in C. tropicalis NIC203 background. Reference: Toker IA, et al. bioRxiv 2024.11.23.624988; doi: https://doi.org/10.1101/2024.11.23.624988.

otEx8339 [sre-22p::2xFlag::NLS::Cre::unc-54 3'UTR + unc-122p::GFP]. Maintain by picking GFP+ in coelomocytes. sre-22 promoter fragment drives expression specifically in PVT neuron, allowing PVT cell-specific Cre-Lox elimination of egl-3 in animals carrying the array. Reference: Walker Z, et al. Genes Dev. 2025 Dec 4. doi: 10.1101/gad.353265.125. PMID: 41345038.

otSi11 [eft-3p::tdTomato::H2B::tbb-2 3'UTR] II. Maintain at 25C. FLInt Safe Harbor landing site for one-shot targeted transgenic array integration into chromosome II of C. briggsae. Generated in parental strain AF16. otSi11 is a CRISPR-mediated insertion into the intergenic region between genes glb-10 and efr-3, homologous to the oxTi564 tdTomato insertion site in C. elegans strain EG7866. Reference: Toker IA & Hobert O. 2026. microPublication Biology. https://doi.org/10.17912/micropub.biology.002310

otEx1184 [exl-1p::exl-1::GFP + rol-6(su1006)]. Maintain by picking Rollers. Translational GFP fusion localizes to lysosomal membranes in the intestine and to the Golgi apparatus in neurons and muscle.

oxIs12 [unc-47p::GFP + lin-15(+)]. Ectopic DVB outgrowth.

otEx233 [dop-1(prom1)::GFP + pha-1(+)].

otIs151 [ceh-36p::RFP + rol-6(su1006)]. Expresses RFP in AWCL/R and ASEL/R. otEx2304 [gcy-11(prom1)::GFP + unc-122::GFP]. Expresses GFP in pharyngeal muscle. Expresses bright GFP in coelomocytes. Rollers. Maintain by picking GFP+.

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. otEx2411[gcy-13(prom1)::GFP + unc-122::GFP]. Expresses GFP in RIM. Expresses bright GFP in coelomocytes. Rollers. Maintain by picking GFP+.

otEx2322[gcy-14(prom1)::GFP + unc-122::GFP]. Faint ASE GFP expression (2 right). Expresses bright GFP in coelomocytes. Dpy.

otIs151 [ceh-36p::RFP + rol-6(su1006)]. Expresses RFP in AWCL/R and ASEL/R. otEx2419 [gcy-(prom1)::GFP + unc-122::GFP]. Bilateral expression of GFP in ASE. Expresses bright GFP in coelomocytes. Rollers. Dpy. Maintain by picking GFP+.

nuIs11 [osm-10::GFP + lin-15(+)]. Array contains pool28; KP#57-59 (osm-10::GFP insert at Nrul site) and pJM24 [lin-15(+) rescues n765 at 20C]. GFP expressed in ASH, ASI, PHA and PHB after 3-fold. nuIs11 may be inserted on LG I.

otIs11 [zig-5::GFP + rol-6(su1006)]. Rollers.

oyIs14 [sra-6::GFP + lin-15(+)]. otEx3140 [unc-14p::sax-7cDNA long-delta11 + rol-6(su1006)]. Pick Rollers to maintain. Reference: Pocock R, et al., Mol Cell Neurosci. 2008 Jan;37(1):56-68.

oyIs14 [sra-6::GFP + lin-15(+)]. otEx3141 [unc-14p::sax-7cDNA long-delta11 + rol-6(su1006)]. Pick Rollers to maintain. Reference: Pocock R, et al., Mol Cell Neurosci. 2008 Jan;37(1):56-68.

otIs197 [unc-14p::hif-1(P621A) + ttx-3p::RFP]. Non-degradable form of HIF-1 expressed from unc-14 promoter in hif-1 mutant background for tissue-specific rescuing experiments.

otIs204 [ceh-36p2::lsy-6 + elt-2p::GFP]. Reference: Poole RJ, et al. PLoS Genet. 2011 June; 7(6): e1002109.

Whole genome sequenced strain.

otIs35 [ttx-3p::kal-1 + rol-6(su1006)] X. otIs35 has been mapped to LG X between lon-2 and hst-6. Superficially wild-type; AIY interneurons have a 100% penetrant axon branching phenotype.

otIs266 [cat-1p::mCherry]. A 2.5 kb upstream region of cat-1 ATG was cloned into pPD95.75 vector and GFP was replaced with mCherry. Reference: Tursun B, et al. Science. 2011 Jan 21;331(6015):304-8.

otIs292 [eat-4::mCherry + rol-6(su1006)]. Rollers. Reference: Tursun B, et al. Science. 2011 Jan 21;331(6015):304-8.

otIs300 [8xASEmotif::GFP + elt-2::DsRed]. elt-2::DsRed prone to silencing; maintain by picking DsRed+. Reference: Tursun B, et al. Science. 2011 Jan 21;331(6015):304-8.

otIs302 [lsy-6::GFP (fosmid) + F25B3.3::DsRed2]; injected with bacterial DNA to form a complex array. otIs302 and otIs301 are different integrants of the same extrachromosomal array and behave similarly. Maintain at 15-20C. Reference: Tursun B, et al. Science. 2011 Jan 21;331(6015):304-8.

ntIs1 [gcy-5p::GFP + lin-15(+)] V. otIs305 [hsp16-2p::che-1::3xHA::BLRP + rol-6(su1006)] V; injected as complex array with Pvu II bacterial DNA. Rollers. Rol is prone to silencing in otIs305, but hsp transgene is still active in Hobert Lab assays. otIs305 is homozygous by PCR analysis (Hobert). Reference: Tursun B, et al. Science. 2011 Jan 21;331(6015):304-8.

Pick wild-type to maintain. Heterozygotes are wild-type and should segregate wild-type heterozygotes, bcl-11 homozygotes (L1 larval arrest with starved appearance), and Dpy Unc homozygotes (Medium Dpy, Shrinker, poor backing). Maintain by picking wild-type and scoring for proper segregation of progeny. bcl-11 homozygotes have weak pharyngeal muscle contractions and pharyngeal lumen fails to open. cu10 is a 555 bp deletion (V:6360921..6361460). Predicted bcl-11 null allele. Reference: Vilimas, Tomas. (2004). Genes regulating ceh-22 and pharyngeal development of Caenorhabditis elegans.. University of Illinois at Chicago. Thesis. https://hdl.handle.net/10027/12060

Stuffed pharynx. Slow growth.

wgIs109 [blmp-1::TY1::EGFP::3xFLAG + unc-119(+)]. TY1::EGFP::3xFLAG tag inserted in frame at C-terminus of blmp-1 coding sequence of fosmid ID#WRM0622cF11 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)

wgIs111 [elt-4::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).

wgIs114 [F16B12.6::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. Niu W, et al. Genome Res. 2011 Feb;21(2):245-54. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs179 [gei-11::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)

wgIs18 [lin-39::TY1::EGFP::3xFLAG + unc-119(+)]. TY1::EGFP::3xFLAG tag inserted in frame at C-terminus of lin-39 coding sequence of fosmid ID#WRM0616aE11 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)

wgIs184 [lin-15B::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. Niu W, et al. Genome Res. 2011 Feb;21(2):245-54. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs211 [nhr-245::TY1::EGFP::3xFLAG(92C12) + 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. Gerstein MB, et al. Science. 2010 Dec 24;330(6012):1775-87. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs236 [ztf-11::TY1::EGFP::3xFLAG(92C12) + 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. Gerstein MB, et al. Science. 2010 Dec 24;330(6012):1775-87. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs301 [mef-2::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. Niu W, et al. Genome Res. 2011 Feb;21(2):245-54. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs305 [nhr-11::TY1::EGFP::3xFLAG(92C12) + 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. Gerstein MB, et al. Science. 2010 Dec 24;330(6012):1775-87. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs311 [tbx-7::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).

wgEx321 [tlp-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. Niu W, et al. Genome Res. 2011 Feb;21(2):245-54. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs329 [C48E7.11::TY1::EGFP::3xFLAG(92C12) + 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)

wgIs332 [ztf-7::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. Niu W, et al. Genome Res. 2011 Feb;21(2):245-54. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs348 [lin-11::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)

wgIs368 [tbx-11::TY1::EGFP::3xFLAG(92C12) + 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. Gerstein MB, et al. Science. 2010 Dec 24;330(6012):1775-87. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)

wgIs371 [K09A11.1::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)

wgIs372 [K09A11.1::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)

wgIs385 [F55B11.4::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)

wgIs396 [hlh-11::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)