Search Strains

uaEx25 [(p016bA352V) nuo-1(+) + unc-119(+)]. Contains extrachromosomal nuo-1(A352V) in a plasmid derived from pDP#MM016b. Complements both nuo-1(ua1) and unc-119(ed3). Generated via microparticle bombardment, therefore, most likely low-copy expression of the transgene. Low brood size. Short life span. Sensitive to oxidative stress.

uaIs26 [(p016bT434M) nuo-1(+) + unc-119(+)]. Carries integration of nuo-1(T434M) in a plasmid derived from pDP#MM016b. Complements both nuo-1(ua1) and unc-119(ed3). Generated via microparticle bombardment, therefore, most likely low-copy expression of transgene. Site of integration unknown. Moderate brood size. Shorter life span. Sensitive to oxidative stress.

uaEx27 [(p016bA443F) nuo-1(+) + unc-119(+)]. Contains an extrachromosomal array carrying nuo-1(A443F) in a plasmid derived from pDP#MM016b. Complements both nuo-1(ua1) and unc-119(ed3). Generated via microparticle bombardment, therefore, most likely low-copy expression of transgene. Low brood size. Short life span. Sensitive to oxidative stress.

cpIs89 [wrt-2p::2x mTurquoise2::PH::tbb-2 3'UTR loxN] I. cpIs85 [egl-20p::2x mKate2::PH::3xHA::tbb-2 3'UTR loxN] II. mNeonGreen::3xFlag tag inserted at the C-terminus of the endogenous egl-20 locus. 2x mTurquoise2::PH membrane marker expressed in seam cells, Q neuroblasts, and many hypodermal cells. Expression of 2x mKate2::PH membrane marker driven by egl-20 upstream intergenic sequence. cpIs89 is a single copy transgene inserted at Chr I:2851088 near ttTi4348 using Cas9-triggered homologous recombination. cpIs85 is a single copy transgene 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.

cpIs158 [myo-3p::pat-3sp::2x vhhGFP4::CD8 tm::2x mTurquoise2::PH::tbb-2 3'UTR loxN] I. cpIs130 [wrt-2p::2x mKate2::PH::3xHA::let-858 3'UTR::tag-168p::HisCl1::tbb-2 3'UTR loxN] II. YPET::3xFlag tag inserted at the C-terminus of the endogenous egl-20 locus. cpIs158 expresses a membrane-anchored anti-GFP nanobody (Morphotrap) in body wall muscles. This version of Morphotrap consists of extracellular 2x vhhGFP4 fused to a human CD8 transmembrane domain and intracellular 2x mTurquoise2. Endogenously tagged EGL-20::YPET::3xFlag is efficiently sequestered by the Morphotrap transgene (the transgene functions as expected for Wnt), leading to Q neuroblast migration defects. NOTE: cpIs158/Morphotrap does not capture all YPET-tagged extracellular proteins, so sequestration should be determined empirically. cpIs130 is a single copy transgene expressing a 2x mKate2::PH membrane marker in seam cells, Q neuroblasts, and many hypodermal cells, and HisCl1 expression from the tag-168 upstream intergenic sequence. Expression of HisCl1 from the single copy insertion does not appear to be sufficient for immobilizing animals. cpIs158 was inserted at Chr I:2851088 near ttTi4348 using Cas9-triggered homologous recombination. cpIs130 was inserted at Chr II:8420157-8420243 near ttTi5605. Reference: Gibney TV & Pani AM. Development. 2025 Aug 21:dev.204802. doi: 10.1242/dev.204802. PMID: 40838367.

vsSi39 [goa-1-gfp(Q205L) + unc-119(+)] II. Single-copy mosSCI insertion of the gain-of-function goa-1(Q205L)::GFP translational fusion driven by 5kb of the goa-1 promoter. Animals have shallow body bends and are egg-laying defective. Reference: Kumar S, et al. G3 (Bethesda). 2021 Aug 7;11(8):jkab167. doi: 10.1093/g3journal/jkab167. PMID: 34003969

Recessive. Mild uncoordination and aldicarb resistance. Marked resistance to volatile anesthetics, isoflurane and halothane, is semi-dominant. Isolated in RM25 (essentially the same as TR403 - high copy Tc1). [NOTE (07/09/2020): a user has reported their stock received in Dec 2019 is not resistant to isofluorane]

kuIs118 [daf-15p::daf-15::mCherry + Cbr-unc-119(+)] II. kuIs118 is a single copy insertion into ttTi5605 via CRISPR/Cas9. Superficially wild-type. mCherry expression observed throughout the body. mCherry detected throughout development by western blot with anti-mCherry antibody, with highest expression levels in early larval stages. Reference: Sewell AK, et al. "The TORC1 phosphoproteome in C. elegans reveals roles in transcription and autophagy” iScience, 20 May 2022, 104186. https://www.sciencedirect.com/science/article/pii/S2589004222004564.

lucSi100 [hsp16.41::vhhGFP4::zif-1::SL2::mCherry::his-11::tbb-2 3'UTR] II. Superficially wild-type morphology. Single-copy insertion of a GFP-nanobody::zif-1 fusion transgene under a heat-shock promoter. Allows conditional depletion of GFP-tagged proteins in all tissues via heat-shock expression of anti-GFP nanobody fusion to ZIF1 (mediated by recruited ZIF-1 but NOT requiring ZF1 tags). (Wang et al. (2017). A toolkit for GFP-mediated tissue-specific protein degradation in C. elegans. Development 144, 2694-2701.)

lucSi102 [hsp16.41::zif-1::SL2::mCherry::his-11::tbb-2 3'UTR] II. Superficially wild-type morphology. Single-copy insertion of a zif-1 transgene under a heat-shock promoter. Used as control for MLC1092 or for conditional depletion of ZF1 degron-tagged proteins (aka ZF) in all tissues via heat-shock expression of ZIF-1. (Wang et al. (2017) A toolkit for GFP-mediated tissue-specific protein degradation in C. elegans. Development 144, 2694-2701.)

ieSi61 [ges-1p::TIR1::mRuby::unc-54 3' UTR + Cbr-unc-119(+)] II. AID* and mNeonGreen tag inserted at the 3' end of the endogenous daf-2 gene locus by CRISPR/Cas9 engineering. A single copy transgene was inserted into chromosome II (oxTi179) expressing modified Arabidopsis thaliana TIR1 tagged with mRuby in the intestine. This strain can be used for auxin-inducible degradation (AID) of DAF-2 protein in the intestine. Reference: Zhang Y, et al. BioRxiv. 2021 Aug 2. 2007.2031.454567. https://doi.org/10.1101/2021.07.31.454567.

ieSi38 [sun-1p::TIR1::mRuby::sun-1 3' UTR + Cbr-unc-119(+)] IV. AID* and mNeonGreen tag inserted at the 3' end of the endogenous daf-2 gene locus by CRISPR/Cas9 engineering. A single copy transgene was inserted into chromosome IV (cxTi10882) expressing modified Arabidopsis thaliana TIR1 tagged with mRuby in germ line and early embryos. This strain can be used for auxin-inducible degradation (AID) of DAF-2 protein in the germ line.

ieSi57 [eft-3p::TIR1::mRuby::unc-54 3' UTR + Cbr-unc-119(+)] II. AID* and mNeonGreen tag inserted at the 3' end of the endogenous daf-2 gene locus by CRISPR/Cas9 engineering. A single copy transgene was inserted 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 DAF-2 protein in somatic tissues. Reference: Zhang Y, et al. BioRxiv. 2021 Aug 2. 2007.2031.454567. https://doi.org/10.1101/2021.07.31.454567.

irSi24 [pept-1::mCherry::H2B + Cbr-unc-119(+)] IV. Single-copy MosSCI insertion of pept-1 reporter into cxTi10882 site in LG IV. mCherry fluorescence exclusively in intestinal nuclei from the end of embryonic development through adulthood. Generated in N2 background. Reference: Maduro MF, et al. Dev Biol 2015 Aug 1;404(1):66-79. doi: 10.1016/j.ydbio.2015.04.025, PMID:25959238.

mirIs97 [15XUAS::ACR1::let-858 3'UTR *oxTi677 [eft-3p::tdTomato::H2B::unc-54 3'UTR + Cbr-unc-119(+)]] II. Superficially wildtype. Integration of multicopy UAS::ACR1 array into tdTomato in the oxTi677 insertion. Genotype for UAS::ACR1 with primers 5'-atgagcagcatcacctgtgat-3' and 5'-ttaggtctcgccggctct-3' to obtain a ~900 bp band.

nSi3 [set-17p::set-17(+)::GFP::set-17 3’UTR + unc-119(+)] IV. nSi3 expresses a translational fusion of genomic set-17 and GFP. nSi3 rescues the brood size defect of n5017 in this strain. nSi3 is a single copy MOS-mediated transposition into the cxTi10882 site; GFP detectable in the nuclei of the hypoderm, sperm and proximal germline, as well as some other cells. Reference: Engert CG, et al. PLoS Genet. 2018 Apr 27;14(4):e1007295.

Wide, meandering excretory canals, with some septate fluid-filled cysts. Canal enlargement visible from L1 through adult. Defect visible only by Nomarski microscopy. n2669 was originally listed as an allele of exc-5. Later repeated complementation tests showed n2669 to be an allele of a novel locus positioned close to exc-5.

Formation of large round cysts in the excretory canal. The cysts begin to form shortly before hatching and is penetrant. The cysts grow in size throughout larval and adult stages, and can be lethal. The cysts form primarily at the cell body. Some of the larger cysts may be visible by low power microscopy. Slight variable defects in the tail whip. 100% penetrant.

Formation of large round cysts in the excretory canal. The cysts begin to form shortly before hatching and is penetrant. The cysts grow in size throughout larval and adult stages, and can be lethal. The cysts form primarily at the cell body. Some of the larger cysts may be visible by low power microscopy. Slight variable defects in the tail whip.

Excretory canal defect. Large fluid-filled cysts appear randomly along the excretory canal, especially at the tips: 100% penetrant. Cysts often visible as clear spots by low-power microscopy. Shortened canals. Smaller cysts in amphid sheath. Stop mutation in 2nd Ras-like IRGP domain. Encodes homologue of human IRGC. [NOTE (08/2025): The correct genotype of this strain is exc-1(rh26), not exc-3(rh26) as previously described.]

Excretory canal defect. Canals are shortened and animal is somewhat pale. Defect visible only by Nomarski microscopy. Tail spike is often malformed.

Excretory canal defect. Canal is invariably short with multiple cysts of varying size clustered along length, especially at the tips. Visible only by Nomarski microscopy. Tail spike is often slightly malformed. Animal is somewhat pale.

Formation of large round cysts in the excretory canal. The cysts begin to form shortly before hatching and is penetrant. The cysts grow in size throughout larval and adult stages, and can be lethal. The cysts form primarily at the canal tips. Some of the larger cysts may be visible by low power microscopy. Slight variable defects in the tail whip. Impenetrant distal tip cell migration defects (Mig).

Excretory canal defect. Hypomorphic allele. Canals are slightly shortened. Defect visible only by Nomarski microscopy.

Excretory canal defect. Canal varies in length from no outgrowth to almost complete outgrowth. Frequent small vacuoles and extra branchings in the canal lumen visible only by Nomarski microscopy. Animals are somewhat pale.

nicTi600 [eft-3p::tdTomato::H2B::unc-119(-) [*oxTi556]] I. Maintain at 20C, somewhat sick at 25C. Unc. nicTi600 is a modified version of oxTi556 that does not rescue unc-119(ed3). Broad, nuclear red fluorescence. This strain can be used for integration of multicopy transgenes using Fluorescent Landmark Interference (FLInt) and unc-119 rescue. Reference: Yanagi KS & Lehrbach N. MicroPublication Biology. 2024 (submitted).

nicTi601 [eft-3p::tdTomato::H2B::unc-119(-) [*oxTi726]] II. Maintain at 20C, somewhat sick at 25C. Unc. nicTi601 is a modified version of oxTi726 that does not rescue unc-119(ed3). Broad, nuclear red fluorescence. This strain can be used for integration of multicopy transgenes using Fluorescent Landmark Interference (FLInt) and unc-119 rescue. Reference: Yanagi KS & Lehrbach N. MicroPublication Biology. 2024 (submitted).

nicTi602 [eft-3p::tdTomato::H2B::unc-119(-)[*oxTi392]] V. Maintain at 20C, somewhat sick at 25C. Unc. nicTi602 is a modified version of oxTi392 that does not rescue unc-119(ed3). Broad, nuclear red fluorescence. This strain can be used for integration of multicopy transgenes using Fluorescent Landmark Interference (FLInt) and unc-119 rescue. Reference: Yanagi KS & Lehrbach N. MicroPublication Biology. 2024 (submitted).

nicTi603 [eft-3p::tdTomato::H2B::unc-119(-) [*oxTi705]] IV. Maintain at 20C, somewhat sick at 25C. Unc. nicTi603 is a modified version of oxTi705 that does not rescue unc-119(ed3). Broad, nuclear red fluorescence. This strain can be used for integration of multicopy transgenes using Fluorescent Landmark Interference (FLInt) and unc-119 rescue. Reference: Yanagi KS & Lehrbach N. MicroPublication Biology. 2024 (submitted).

nicTi604[eft-3p::tdTomato::H2B::unc-119(-) [*oxTi400]] X. Maintain at 20C, somewhat sick at 25C. Unc. nicTi604 is a modified version of oxTi400 that does not rescue unc-119(ed3). Broad, nuclear red fluorescence. This strain can be used for integration of multicopy transgenes using Fluorescent Landmark Interference (FLInt) and unc-119 rescue. Reference: Yanagi KS & Lehrbach N. MicroPublication Biology. 2024 (submitted).

nicTi605 [eft-3p::tdTomato::H2B::unc-119(-) [*oxTi612]] III. Broad, nuclear red fluorescence. Unc. Maintain at 20C, somewhat sick at 25C. Unc. nicTi605 is a modified version of oxTi612 that does not rescue unc-119(ed3). Broad, nuclear red fluorescence. This strain can be used for integration of multicopy transgenes using Fluorescent Landmark Interference (FLInt) and unc-119 rescue. Reference: Yanagi KS & Lehrbach N. MicroPublication Biology. 2024 (submitted).

nicTi606 [eft-3p::tdTomato::H2B::unc-119(-) [*oxTi391]] IV. Maintain at 20C, somewhat sick at 25C. Unc. nicTiX606 is a modified version of oxTi391 that does not rescue unc-119(ed3). Broad, nuclear red fluorescence. This strain can be used for integration of multicopy transgenes using Fluorescent Landmark Interference (FLInt) and unc-119 rescue. Reference: Yanagi KS & Lehrbach N. MicroPublication Biology. 2024 (submitted).

qySi99 [lin-29p::fdgt-1::mNG + loxP] I. Unc. Single-copy insertion. unc-6 mutant expressing anchor cell specific fdgt-1 glucose transporter. fdgt-1 formerly known as fgt-1. Reference: Garde A, et. al. Dev. Cell 2022 March 21. https://doi.org/10.1016/j.devcel.2022.02.019

qySi99 [lin-29p::fdgt-1::mNG] I. Single-copy insertion of mNG-tagged fdgt-1. fdgt-1 formerly known as fgt-1. Reference: Garde A, et. al. Dev. Cell. 2022 Mar 28;57(6):732-749.e7. PMID: 35316617

qySi569 [cdh-3p::fdgt-2::mNG + loxP] I. Superficially wild type animal expressing a single copy insertion of glucose transporter fdgt-2 in the anchor cell. fdgt-2 formerly known as fgt-2. Reference: Garde A, et. al. Dev. Cell. 2022 Mar 28;57(6):732-749.e7. PMID: 35316617

qySi564 [lin-29p::pfk-1.1::mNG +loxP] I. Single-copy insertion. Anchor cell-specific expression of the mNG-tagged glycolytic enzyme PFK-1.1 forms localized puncta at the site of invasion. Reference: Garde A, et. al. Dev. Cell. 2022 Mar 28;57(6):732-749.e7. PMID: 35316617

qySi565 [lin-29p::pyk-1a::mNG + loxP] I. Single-copy insertion. Anchor cell-specific expression of the mNG-tagged glycolytic enzyme PYK-1A forms puncta at the site of invasion. Reference: Garde A, et. al. Dev. Cell. 2022 Mar 28;57(6):732-749.e7. PMID: 35316617

qySi566 [lin-29p::enol-1a::mNG + loxP] I. Single-copy insertion. Anchor cell specific expression of glycolytic enzyme enol-1a which forms puncta at the invasive side and is also expressed in the nucleus. Reference: Garde A, et. al. Dev. Cell. 2022 Mar 28;57(6):732-749.e7. PMID: 35316617

qySi567 [ced-10p::pyk-1a::mNG + loxP] I. Single-copy insertion. Glycolytic enzyme pyk-1a expressed under the ced-10 promoter which shows uterine expression and forms clusters only in the anchor cell. Reference: Garde A, et. al. Dev. Cell. 2022 Mar 28;57(6):732-749.e7. PMID: 35316617

qySi569 [cdh-3p::fdgt-2::mNG + loxP] I. fdgt-1 glucose transporter null mutant expressing a single copy insertion of the glucose transporter fgt-2 in the anchor cell. fdgt-1 and fdgt-2 formerly known as fgt-1 and fgt-2, respectively. Reference: Garde A, et. al. Dev. Cell. 2022 Mar 28;57(6):732-749.e7. PMID: 35316617

qySi180 [lin-29p::GFP::CAAX] I. MosSCI single copy insertion. Anchor cell specific expression of CAAX motif. Superficially wild-type. Reference: Park K, et al. J Cell Biol. 2024 Oct 7;223(10):e202402035. PMID: 39007804.

qySi205 [lin-29p::icmt-1::mscarlet] I. MosSCI single copy insertion. Anchor cell specific expression of prenylation enzyme icmt-1. Superficially wild-type. Reference: Park K, et al. J Cell Biol. 2024 Oct 7;223(10):e202402035. PMID: 39007804.

qySi205 [lin-29p::icmt-1::mscarlet] I. qyIs562 [zmp-1p::zmp-1sp::sfGFP::KDEL]. MosSCI single copy insertion for anchor cell specific expression of prenylation enzyme icmt-1 and anchor cell specific expression of KDEL ER lumen marker. Superficially wild-type. Reference: Park K, et al. J Cell Biol. 2024 Oct 7;223(10):e202402035. PMID: 39007804.

qySi229 [cdh-3p::lmp-1::mNG] I. MosSCI single copy insertion. Anchor cell specific expression of lysosomal protein lmp-1. Superficially wild-type. Reference: Park K, et al. J Cell Biol. 2024 Oct 7;223(10):e202402035. PMID: 39007804.

qySi147 [lin-29p::mKate2::PLC(delta)PH] I. qy234 [mNG::sec16A.1] III. sec16A.1 locus endogenously tagged with mNG at the N-terminus and MosSCI single copy insertion for anchor cell specific expression of membrane marker PLC?PH. Superficially wild-type. Reference: Park K, et al. J Cell Biol. 2024 Oct 7;223(10):e202402035. PMID: 39007804.

qySi205 [lin-29p::icmt-1::mscarlet] I. MosSCI single copy insertion for anchor cell specific expression of prenylation enzyme icmt-1 and sec-16A.1 locus endogenously tagged with mNG at the N-terminus. Superficially wild-type. Reference: Park K, et al. J Cell Biol. 2024 Oct 7;223(10):e202402035. PMID: 39007804.

qySi252 [let-2p::mNG] I. Single-copy CRISPR-based integration into ttTi4348. Wild-type growth. Reference: Srinivasan S,et al. J Cell Biol. 2025 224(6):e202412118. doi:10.1083/jcb.202412118 PMID: 40100062.

2.6 kb deletion. pk87 homozygotes have a variable defect in hyp10 morphogenesis; most obvious in L1-L2 larvae. Rescued by WT copy of cdh-3 present on cosmid ZK112.

NL subclone of KR1787. NL received strain KR1787 from Ann Rose 11/93. High copy Tc1 strain. See WBG 14(4): 16-17.

NL subclone of CB4000. High Tc1 copy number strain. See WBG 14(4): 16-17.