Search Strains

asEx83 [spe-19(+) + myo-3p::GFP]. Pick GFP+ to maintain. asEx83 contains 7.3kb genomic fragment including spe-19 (Y113G7A.10) and 850bp of upstream sequence. Transgene rescues spe-19(eb52) sperm activation defect. GFP+ hermaphrodites are fertile. non-GFP hermaphrodites are sterile. All males are fertile.

armEx196 [mex-5p::unc-130::GFP::tbb-2 3'UTR + Cbr-unc-119(+)]. Pick non-Unc to maintain. unc-119(ed3) was crossed into JU258, the niDf199IV deletion was confirmed by PCR, and these Unc worms were used for bombardment. JU258 worms lack specific 21U-RNAs normally present in N2 worms due to deletion of the niDF199 locus. Reference: Cecere G, et al. Mol Cell. 2012 Sep 14;47(5):734-45. Reference: Cecere G, et al. Mol Cell. 2012 Sep 14;47(5):734-45.

armSi1 [mex5p::unc-130::GFP::tbb-2 3'UTR + Cbr-unc-119(+)] II. GFP expression from transgene is observed in the germline. Reference: Cecere G, et al. Mol Cell. 2012 Sep 14;47(5):734-45.

ieSi57 [eft-3p::TIR1::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. cer135 is a rpb-2::GFP(delta)piRNA::AID*::3xFLAG tag inserted into the endogenous rpb-2 locus. This strain allows auxin-dependent disruption of RNA polymerase II with dose-dependent lifespan shortening. Reference: Oswal N, et al. PLoS Comput Biol. 2022 Sep 30;18(9):e1010415. PMID: 36178967.

weSi174 [eif-3.Bp::TIR1::linker::mCherry(dpiRNA)::tbb-2 3'UTR + unc-119(+)] II. Auxin-inducible degradation of DAF-2::AID* causes dauer formation. Reference: Eder M, et al. Cell. 2024 Jul 25;187(15):3919-3935.e19. doi: 10.1016/j.cell.2024.05.050. PMID: 38908368.

weSi174 [eif-3.Bp::TIR1::linker::mCherry(dpiRNA)::tbb-2 3'UTR + unc-119(+)] II. Maintain at 20C or less. Sterile at 25C. Auxin-inducible degradation of DAF-2::AID* causes dauer formation. Reference: Eder M, et al. Cell. 2024 Jul 25;187(15):3919-3935.e19. doi: 10.1016/j.cell.2024.05.050. PMID: 38908368.

ljfSi33 [myo3p::egl-17::mNG::SL2::2x mKate2::PH::3xHA::tbb-2 3'UTR loxN] I. ljfSi10 [hlh-8p::2x mTurquoise2::PH::tbb-2 3'UTR loxN] II. egl-17(ljf14) was generated by replacing the endogenous egl-17 coding sequence with mNG::3xFlag. Sex myoblast migration defects, Egl. EGL-17::mNG expression in body wall muscles. mTurquoise2::PH plasma membrane marker that is expressed in the M lineage. ljfSi33 is a single copy transgene inserted at Chr I:2851088, near ttTi4348. ljfSi10 was 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.

ljfSi10 [hlh-8p::2x mTurquoise2::PH::tbb-2 3'UTR loxN] II. Endogenously membrane tethered allele of EGL-17::mNG that is competent for contact-dependent signaling but does not diffuse extracellularly. egl-17(ljf25) was generated by inserting mNG and the transmembrane and C-terminal domains of NLG-1 at the C-terminus of egl-17. Sex myoblast migration defects, Egl. mTurquoise2::PH plasma membrane marker that is expressed in the M lineage. ljfSi10 was 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.

ljfSi10 [hlh-8p::2x mTurquoise2::PH::tbb-2 3'UTR loxN] II. Endogenously engineered transcriptional reporter that can be used to visualize membranes of egl-17-expressing cells. egl-17(ljf24) was generated by inserting SL2::mNG::PH following the egl-17 stop codon. mTurquoise2::PH plasma membrane marker that is expressed in the M lineage. ljfSi10 was 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.

ljfSi10 [hlh-8p::2x mTurquoise2::PH::tbb-2 3'UTR loxN] II. mNeonGreen::3xFlag tag inserted at the C-terminus of the endogenous egl-17. mTurquoise2::PH plasma membrane marker that is expressed in the M lineage. ljfSi10 was 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.

ljfSi32 [egl-20 enhancer(-1261 – 610)::pes-10p::egl-17::mNG::SL2::2x mKate2::PH::3xHA::tbb-2 3'UTR loxN]) I. ljfSi10 [hlh-8p::2x mTurquoise2::PH::tbb-2 3'UTR loxN] II. Sex myoblast migration defects, Egl. EGL-17::mNG expression in a small number of posterior cells leads to posterior sex myoblast migration in hermaphrodites. egl-17(ljf14) was generated by replacing the endogenous egl-17 coding sequence with mNG::3xFlag. ljfSi32 is a single copy transgene inserted at Chr I:2851088, near ttTi4348. Reference: Gibney TV & Pani AM. Development. 2025 Aug 21:dev.204802. doi: 10.1242/dev.204802. PMID: 40838367.

ljfSi2 [hlh-8p::2x mKate2::D. melanogaster moesin actin-binding domain::SL2::2x mTurquoise2::PH::3xHA::tbb-2 3'UTR loxN] I. Single-copy transgenic strain that expressing mTurquoise2::PH plasma membrane marker and mKate2::moesin actin binding domain in the M lineage. lfjSi2 was inserted at Chr I:2851088, near ttTi4348, using Cas9-triggered homologous recombination. Reference: Gibney TV & Pani AM. Development. 2025 Aug 21:dev.204802. doi: 10.1242/dev.204802. PMID: 40838367.

ljfSi2 [hlh-8p::2x mKate2::D. melanogaster moesin actin-binding domain::SL2::2x mTurquoise2::PH::3xHA::tbb-2 3'UTR loxN] I. ljfSi39 [myo-3p::egl-15(5a)::SL2::2x mKate2::PH::3xHA::tbb-2 3' UTR lox511i] IV. mNeonGreen::3xFlag tag inserted at the C-terminus of the endogenous egl-17. EGL-15(5a) expression in body wall muscle cells captures free EGL-17, reducing long-range signaling and causing moderately penetrant sex myoblast migration defects. ljfSi2 is a single copy transgene inserted at Chr I:2851088 near ttTi4348 using Cas9-triggered homologous recombination. ljfSi39 is a single copy transgene inserted at Chr IV:4237723 using Cas9-triggered homologous recombination. Reference: Gibney TV & Pani AM. Development. 2025 Aug 21:dev.204802. doi: 10.1242/dev.204802. PMID: 40838367.

Temperature sensitive sterility. Maintain at 15C. Enhanced sensitivity to pathogens.

vizSi20 [mex-5p::GFP::gsk-3 (K65A,E77A,D161A,D180A)::tbb-2 3’UTR + unc-119(+)] II. Superficially wild-type. vizSi20 was inserted into Chr II ttTi5605 using MosSci. GSK-3 cDNA was rendered kinase dead by replacing K65, E77, D161 and D180 to alanine. The transgene does not rescue gsk-3 sterility or embryonic lethality defects. Reference: Furuta T, et al. Development. 2018 May 14;145(10). pii: dev161042. doi: 10.1242/dev.161042.

vizSi32 [cdk-2p(intron)::GFP::tbb-2 3’ UTR + unc-119(+)] II. vizSi32 was inserted into ttTi5605 on Chr II using MosSci. Intron 1 of cdk-2 drives drives GFP expression in this transgene. Reference: Furuta T, et al. Development. 2018 May 14;145(10). pii: dev161042. doi: 10.1242/dev.161042.

vizSi34 [cdk-2p::GFP::tbb-2 3’ UTR + unc-119(+)] II. Superficially wild-type. vizSi34 was inserted into ttTi5605 on Chr II using MosSci. Predicted cdk-2 promoter (from WormBase) drives GFP expression. Reference: Furuta T, et al. Development. 2018 May 14;145(10). pii: dev161042. doi: 10.1242/dev.161042.

Age-dependent defect in meiotic double-strand break formation. Homozygous mutants produce elevated frequency of males and dead embryos resulting from defects in meiotic chromosome segregation. The frequency of both males and dead embryos increases in later broods. Reference: Rosu S, et al. PLoS Genet. 2013;9(8):e1003674.

Supresses aggregation and bordering phenotypes of npr-1(null) animals.

Temperature sensitive. Maintain at 15C. Some growth at 20C. Does not grow at 25C. Recessive.

yanSi1 [eft-3p::dCAS9::VP64::tbb-2 3'UTR + Cbr-unc-119(+)] inserted into ttTi5605 (II:8.42 MB) in parental strain EG6699. Integration plasmid was generated via 3-way gateway reaction with pCFJ150 and plasmids containing eft-3 promoter (ID:1031@E02 promoterome), tbb-2 3'UTR (pCM1.36), and a full length dcas9::VP64 transgene cloned into pDONR201. Reference: Zullo JM, et al. Nature. 2019 Oct;574(7778):359-364. doi: 10.1038/s41586-019-1647-8. PMID: 31619788.

Defective chemotaxis to volatile odorant. Low percentage (about 6%) have protruding vulva.

RNAi deficient. Maintain under normal conditions.

uuEx18 [dcr-1(wild-type) + dpy-30::mCherry]. Superficially wild-type. Reference: Welker N, et al. (2010) RNA 16:893-903.

sEx10749 [rCes F08B12.3b::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx11019 [rCesC44B12.2::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx11198 [rCesT23B12.6::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx11941[rCesF23B12.9::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx12878 [rCesY37A1B.2::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sIs11033[rCesF23B12.5::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx13446 [rCes Y44A6B.2::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx13488 [rCesF31B12.1b::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx13657 [rCesY66H1B.2::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx14283[rCesW02B12.10::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx14393[rCesW02B12.9::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx15073[rCesY39A1B.2::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx15328 [rCesF35B12.6::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx15342 [rCes W02B12.3::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx15489 [rCes F13B12.1::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx15649 [rCesF28B12.3::GFP + pCeh361]. Maintain by picking WT. WT animals are GFP+. Strain construction supported by Genome British Columbia and Genome Canada. Please acknowledge McKay et al, Cold Spring Harbor Symposia on Quantitative Biology 68: 159-169 2004 (WBPaper00006525).

sEx70 [T20B12 (III) + pCes1943[rol-6(su1006)]]. segrgnt 2. 20 ng/ul T20B12 + 110 ng/ul pCes1943[rol-6(su1006dm)] injected into hermaphrodite from BC842 (N2 male strain). pCes1943 carries rol-6(su1006) [an EcoRI insert from pRF4] and a kanamycin cassette. Select Rollers to maintain. Presence of cosmid confirmed by PCR. This transgenic strains were constructed in collaboration with the C. elegans Genome Sequencing Consortium Labs in St. Louis, MO and Hinxton, Cambridge, UK. Funding for the creation of this transgenic strain was provided by a grant to Ann Rose and David Baillie from the Canadian Genome Analysis and Technology Program (CGAT), and from a grant from NSERC (Canada) to David Baillie. If you use this strain in work which you publish, please acknowledge these grants.

sEx738 [M01B12 (I) + pCes1943[rol-6(su1006)]]. Segrgnt. 3. 20 ng/ul M01B12 + 80 ng/ul pCes1943[rol-6(su1006dm)] injected into hermaphrodite from BC842 (N2 male strain). pCes1943 carries rol-6(su1006) [an EcoRI insert from pRF4] and a kanamycin cassette. Select Rollers to maintain. Presence of cosmid confirmed by PCR. This transgenic strains were constructed in collaboration with the C. elegans Genome Sequencing Consortium Labs in St. Louis, MO and Hinxton, Cambridge, UK. Funding for the creation of this transgenic strain was provided by a grant to Ann Rose and David Baillie from the Canadian Genome Analysis and Technology Program (CGAT), and from a grant from NSERC (Canada) to David Baillie. If you use this strain in work which you publish, please acknowledge these grants.

mjIs134 [mex-5p::GFP::(Gly)5Ala::his-58::tbb-2 3'UTR + Cbr-unc-119(+)] II. Germ granule defective. ~30% sterility, maintain by picking gravid adults with visible embryos. Nuclear GFP expression in the germline. Reference: Lev I, et al. Curr Biol. 2019 Sep 9;29(17):2880-2891.e4. PMID: 31378614

mjIs134 [mex-5p::GFP::(Gly)5Ala::his-58::tbb-2 3'UTR + Cbr-unc-119(+)] II. Maintain at 15C. Heritable RNAi deficient, Mortal germline (Mrt) at 25C. Expressing nuclear GFP in the germline. Reference: Lev I, et al. Curr Biol. 2019 Sep 9;29(17):2880-2891.e4. PMID: 31378614

mjIs134 [mex-5p::GFP::(Gly)5Ala::his-58::tbb-2 3'UTR + Cbr-unc-119(+)] II. Maintain at 15C. Heritable RNAi deficient, germ granule defective, high sterility. Expresses nuclear GFP in the germline. Reference: Lev I, et al. Curr Biol. 2019 Sep 9;29(17):2880-2891.e4. PMID: 31378614

mjIs134 [mex-5p::GFP::(Gly)5Ala::his-58::tbb-2 3'UTR + Cbr-unc-119(+)] II. N-terminal Auxin-Inducible AID-1* and HA tag inserted into the endogenous hrde-1 locus. GFP fluorescence in germline (mex-5::gfp). Control strain for BFF69; does not carry TIR1 transgene necessary for the degradation. hrde-1(pig6) crRNA sequence: CAUAAUUUUGUCGAGCAAGU. Reference: Toker IA, et al. Dev Cell. 2022 Feb 7;57(3):298-309.e9. PMID: 35134343.

mjIs134 [mex-5p::GFP::(Gly)5Ala::his-58::tbb-2 3'UTR + Cbr-unc-119(+)] II. ieSi38 [sun-1p::TIR1::mRuby::sun-1 3'UTR + Cbr-unc-119(+)] IV. N-terminal Auxin-Inducible AID* and HA tag inserted into the endogenous hrde-1 locus. Germline-expressed TIR1 and germline GFP. Allows for the degradation of hrde-1 and heritable RNAi deficiency in the presence of auxin. hrde-1(pig6) crRNA sequence: CAUAAUUUUGUCGAGCAAGU. Reference: Toker IA, et al. Dev Cell. 2022 Feb 7;57(3):298-309.e9. PMID: 35134343.

Homozygous viable mutation balanced by GFP- and dpy-10-marked inversion. Heterozygotes are wild-type with pharyngeal GFP signal, and segregate wild-type GFP+, Dpy bright GFP+ (mIn1 homozygotes), and non-GFP sbj3 homozygotes. Pick wild-type GFP+ to maintain. sbj3 homozygotes are morphologically wild-type but show reduction in viable progeny. Reference: Wolters S, et al. Genetics. 2014 Apr;196(4):985-99.

F28B12.3. Homozygous sterile deletion chromosome balanced by GFP- and dpy-10-marked inversion. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP, Dpy bright GFP (mIn1 homozygotes), and non-GFP ok1181 homozygotes (sterile adult). Pick WT dim GFP and check for correct segregation of progeny to maintain. Klerkx et al, Dev Biol. 2009 335:12-21.

ojIs1 [pie-1p::GFP::tbb-2 + unc-119(+)]. qaIs3502 [pie-1p::YFP::lmn-1 + pie-1p::CFP::H2B + unc-119(+)]. Germline expression of YFP::lmn-1. CFP::HIS is silenced in qaIs3502. Homozygous lethal deletion chromosome balanced by bli-4- and GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP sterile homozygotes (produce only dead embryos). Homozygous hT2[bli-4 let-? qIs48] inviable. Pick WT GFP and check for correct segregation of progeny to maintain. Derived from strains XA3502 and XA3503. Reference: ima-2(ok256) is described in Askjaer et al., Mol Biol Cell. 2002 Dec;13(12):4355-70.