Search Strains

wrdSi35 [mex-5p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (II:0.77). Germline and early embryo-specific expression of TIR1 co-factor for AID, and tissue-specific AID-tagged blue protein in germline and early embryo nuclei. [NOTE: The genotype of this strain was previously described as wrdSi51. The correct allele name is wrdSi35.] Reference: Ashley GE, et al. Genetics. 2021 Mar 31;217(3):iyab006. doi: 10.1093/genetics/iyab006. PMID: 33677541

wrdSi22 [^SEC^eft-3p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (I:-5.32). SEC spotaneously excises at a high frequency so non-rollers will appear. Pick Rollers to maintain. Pan-somatic expression of TIR1 co-factor for AID, and expression of AID-tagged blue protein in somatic nuclei. Self-excising cassette with Rol and HygroR markers still in strain to facilitate crosses. Heat-shock to remove SEC as described in Dickinson et al. 2015. Reference: Ashley GE, et al. Genetics. 2021 Mar 31;217(3):iyab006. doi: 10.1093/genetics/iyab006. PMID: 33677541

wrdSi23 [eft-3p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (I:-5.32). Pan-somatic expression of TIR1 co-factor for AID, and expression of AID-tagged blue protein in somatic nuclei. Reference: Ashley GE, et al. Genetics. 2021 Mar 31;217(3):iyab006. doi: 10.1093/genetics/iyab006. PMID: 33677541

wrdSi45 [dpy-7p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (II:0.77). Hypodermal-specific expression of TIR1 co-factor for AID, and tissue-specific AID-tagged blue protein in hypodermal nuclei. Reference: Ashley GE, et al. Genetics. 2021 Mar 31;217(3):iyab006. doi: 10.1093/genetics/iyab006. PMID: 33677541

wrdSi47 [dpy-7p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (I:-5.32). Hypodermal-specific expression of TIR1 co-factor for AID, and tissue-specific AID-tagged blue protein in hypodermal nuclei. Reference: Ashley GE, et al. Genetics. 2021 Mar 31;217(3):iyab006. doi: 10.1093/genetics/iyab006. PMID: 33677541

wrdSi44 [SCMp*::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (II:0.77). Seam cell-specific expression of TIR1 co-factor for AID, and tissue-specific AID-tagged blue protein in seam cell nuclei. Some expression in hypodermal cells. Reference: Ashley GE, et al. Genetics. 2021 Mar 31;217(3):iyab006. doi: 10.1093/genetics/iyab006. PMID: 33677541

wrdSi46 [SCMp*::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (I:-5.32). Seam cell-specific expression of TIR1 co-factor for AID, and tissue-specific AID-tagged blue protein in seam cell nuclei. Some expression in hypodermal cells. Reference: Ashley GE, et al. Genetics. 2021 Mar 31;217(3):iyab006. doi: 10.1093/genetics/iyab006. PMID: 33677541

wrdSi58 [eft-3p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (II:0.77). Pan-somatic expression of TIR1 co-factor for AID, and expression of AID-tagged blue protein in somatic nuclei. jsSi1579 is an RMCE landing pad inserted at a sgRNA site 45 bp from the ttTi5605 insertion site. It contains an rpl-28p::GFP reporter flanked by FRT and FRT3 sites and a loxP site (for more details about landing pads, see Nonet, 2020.Genetics or visit https://sites.wustl.edu/nonetlab/rmce/). Reference: Vo AA, et al. MicroPubl Biol. 2021 Aug 3;2021:10.17912/micropub.biology.000425. doi: 10.17912/micropub.biology.000425. eCollection 2021. PMID: 34355140

wrdSi57 [^SEC^eft-3p:TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (II:0.77). Pick Rollers to maintain. Pan-somatic expression of TIR1 co-factor for AID, and expression of AID-tagged blue protein in somatic nuclei. Self-excising cassette with Rol and HygroR markers still in strain to facilitate crosses. Heat-shock to remove SEC as described in Dickinson et al. 2015. jsSi1579 is an RMCE landing pad inserted at a sgRNA site 45 bp from the ttTi5605 insertion site. It contains an rpl-28p::GFP reporter flanked by FRT and FRT3 sites and a loxP site (for more details about landing pads, see Nonet, 2020.Genetics or visit https://sites.wustl.edu/nonetlab/rmce/). Reference: Vo AA, et al. MicroPubl Biol. 2021 Aug 3;2021:10.17912/micropub.biology.000425. doi: 10.17912/micropub.biology.000425. eCollection 2021. PMID: 34355140

wrdSi19 [mex-5p::TIR1:F2A:mTagBFP2:AID*::NLS::tbb-2 3'UTR] (I:-5.32). Strain allows germline-specific depletion of NHR-23::AID*LLTEV::3xFLAG using the auxin-inducible degron system. wrdSi19 was made by crossing parental strain KRY87 to JDW83 [wrdSi10 (mex-5p::TIR1:F2A:mTagBFP2:tbb-2 3?UTR+SEC, I:-5.32); him5(e1490) V] and using heatshock to remove the SEC. Reference: Ragle JM, et al. Development. 2020 Nov 27;147(22):dev193862. doi: 10.1242/dev.193862. PMID: 33060131.

wrdSi3 [sun-1p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (II:0.77). Endogenous dpy-27 locus tagged with AID* element and myc to create a conditional allele using the auxin-inducible degron (AID). In absence of auxin, ~40% of worms are male due to him-8(me4) mutation. In the presence of auxin, ~100% of worms are male (hermaphrodite-lethal due to degradation of AID-tagged DPY-27). Reference: Li Q, et al. Inducible degradation of dosage compensation protein DPY-27 facilitates isolation of Caenorhabditis elegans males for molecular and biochemical analyses. bioRxiv 2022.01.27.478040; doi: https://doi.org/10.1101/2022.01.27.478040.

itIs153 [pie-1p::par-2::GFP + rol-6(su1006) + N2 genomic DNA]. ojIs1 [pie-1p::GFP::tbb-2 + unc-119(+)]. Maintain at 25C. Constructed by crossing heterozygous ojIs1 males into KK866 (itIs153) hermaphrodites and selecting for double homozygosity of the arrays. itIs153 is an integrated derivitive of axEx1094.

axIs1492 [pie-1p::GFP::tbb-2 ORF::tbb-2 3'utr + unc-119(+)]. Transgene is prone to silencing -- maintain at 25C.

axIs1664 [pie-1p::GFP::histone H2B::tbb-2 3'utr + unc-119(+)]. Transgene is prone to silencing -- maintain at 25C.

axIs1630 [daz-1p::GFP::histone H2B::tbb-2 3'utr + unc-119(+)].

axIs1694 [gld-1p::GFP::histone H2B::tbb-2 3'utr + unc-119(+)].

axIs1703 [spe-11p::GFP::histone H2B::tbb-2 3'utr + unc-119(+)].

axIs1742 [lip-1p::GFP::histone H2B::tbb-2 3'utr + unc-119(+)].

axIs1752 [fbf-1p::GFP::histone H2B:tbb-2 3'utr + unc-119(+)]. Maintaining at 25C might reduce the chance of transgene silencing.

axIs1756 [fbf-2p::GFP::histone H2B:tbb-2 3'utr + unc-119(+)]. Maintaining at 25C might reduce the chance of transgene silencing.

axIs1758 [spn-4p::GFP::histone H2B:tbb-2 3'utr + unc-119(+)]. Transgene is slightly unstable. Pick non-Unc, GFP+ worms to maintain.

axIs1759 [msp-56p::GFP::histone H2B:tbb-2 3'utr + unc-119(+)].

axIs1779 [pie-1p::mCherry::H2B::tbb-2 3'UTR + unc-119(+)]. Maintain at 25C to maintain transgene expression.

qSi150 [sygl-1p::3X flag::sygl-1::tbb-2 3' UTR + Cbr-unc-119(+)] II. Phenotypically gravid, grows as a homozygote. Increased SYGL-1 protein expression, expanded progenitor zone, expanded GSC pool. Reference: Shin H. et al. PLoS Genet. 2017 Dec 12;13(12):e1007121.

3xMyc tag inserted at N-terminus of endogenous cyb-2.1 locus.

3xMyc tag inserted at N-terminus of endogenous cyb-2.2 locus.

qSi369 [sygl-1p::24xMS2 loops::3xflag::sygl-1::sygl1 3'UTR]. qSi370 [mex-5p:: MS2 Coat Protein::linker::sfGFP::tbb-2 3' UTR::gpd-2 intergenic sequence::H2B::mCherry::unc-54 3' UTR]. Superficially wild-type with expression of sfGFP and nuclear mCherry in germline. qSi369 and qSi370 constitute an MS2 system which allows live visualization of sygl-1 nascent transcripts in the C. elegans germline in a glp-1 mutant background. qSi370 can be prone to silencing, especially after severe starvation; silencing of GFP or mCherry expression can occur independently of one another. Maintain by picking animals with bright GFP and mCherry expression. Reference: Lee C, et al. Dev Cell. 2019 Aug 19;50(4):426-435.e4.

qSi369 [sygl-1p::24xMS2 loops::3xflag::sygl-1::sygl1 3'UTR]. qSi370 [mex-5p:: MS2 Coat Protein::linker::sfGFP::tbb-2 3' UTR::gpd-2 intergenic sequence::H2B::mCherry::unc-54 3' UTR]. Superfically wild-type with expression of sfGFP and nuclear mCherry in germline. qSi369 and qSi370 constitute an MS2 system which allows live visualization of sygl-1 nascent transcripts in the C. elegans germline in a glp-1 mutant background. Reference: Lee C, et al. Dev Cell. 2019 Aug 19;50(4):426-435.e4.

q873[fog-3(1-262)::GGS::3xFLAG::fog-3(263 Phe)] I. qSi375 [mex-5p::eGFP::linker::his-58::3xboxb::tbb-2 3’UTR] II. The tethering assay allows this strain to be used for determining FOG-3 levels in different genetic backgrounds. Similar fertility to N2 wild type. Reference: Aoki S, et al. Cell Rep. 2018 Jun.26; 23(13):3769-3775

qSi369 [sygl-1p::24xMS2 loops::3xflag::sygl-1::sygl1 3'UTR]. qSi370 [mex-5p:: MS2 Coat Protein::linker::sfGFP::tbb-2 3' UTR::gpd-2 intergenic sequence::H2B::mCherry::unc-54 3' UTR]. Heterozygotes are wild-type with pharyngeal GFP signal, and segregate wild-type GFP+ heterozygotes, non-GFP pharynx q224 homozygotes (Glp sterile at 20-25C) and dead eggs (hT2 homozygotes). All animals are sfGFP + in the germline, with distal and proximal transcription sites in the nucleus. qSi369 and qSi370 constitute an MS2 system which allows live visualization of sygl-1 nascent transcripts in the C. elegans germline in a glp-1 mutant background. Reference: Lee C, et al. Dev Cell. 2019 Aug 19;50(4):426-435.e4.

pgl-1 (q842) is a (Q342A) missense mutation. This is a homozygous strain; replaced JK5481. Reference: Aoki ST, et al. Proc Natl Acad Sci U S A. 2016 Feb 2;113(5):1279-84.

qSi380 [mex-5p::eGFP::3xOLASS::linker::his-58::MODC pest::3xboxb::tbb-2 3'UTR::SL2 trans-splice site::mCherry::3xV5::linker::his-58::MODC pest::mutant 3xboxb::tbb-2 3'utr::tbb-1 intergenic region] IV. Worms are fertile at 20C. Improved tethering assay for use in the C. elegans germline. GFP reporter mRNA is under control of a germline-expressed mex-5 promoter and has three boxB stem-loops in its 3'UTR. The RNA-binding protein (RBP) is tagged with lamda-N. The nascent transcript driven by mex-5 promoter is resolved by trans-splicing into two mRNAs that encode distinct reporters. The GFP reporter RNA has three functional boxB stem-loops in its 3'UTR; the mCherry reporter 3'UTR has three mutated boxB stem-loops that do not bind lamda-N and therefore provides an internal control. Addition of an OLLAS tag to GFP and a V5 tag to mCherry enables sensitive immunostaining and immunoblotting. Reference: Doenier J, et al. RNA. 2021 Jun;(6)643-652. PMID: 33727224.

qSi380 [mex-5p::eGFP::3xOLASS::linker::his-58::MODC pest::3xboxb::tbb-2 3’utr::SL2 trans-splice site::mCherry::3xV5::linker::his-58::MODC pest::mutant 3xboxb::tbb-2 3'utr::tbb-1 intergenic region] IV. Worms are fertile at 20C. Improved tethering assay for use in the C. elegans germline. GFP reporter mRNA is under control of a germline-expressed mex-5 promoter and has three boxB stem–loops in its 3?UTR. The RNA-binding protein (RBP) is tagged with lamda-N. The nascent transcript driven by mex-5 promoter is resolved by trans-splicing into two mRNAs that encode distinct reporters. The gfp reporter RNA has three functional boxB stem–loops in its 3?UTR; the mCherry reporter 3?UTR has three mutated boxB stem–loops that do not bind lamda-N and therefore provides an internal control. Addition of an OLLAS tag to GFP and a V5 tag to mCherry enables sensitive immunostaining and immunoblotting. Reference: Doenier J, et al. RNA. 2021 Jun;(6)643-652. PMID: 33727224.

Recessive, loss of function, early stop mutation within the coding sequence makes sa603 a likely null allele. Variable locomotion ranging from lethargic to hyperactive. Eat (pale, scrawny). Loopy movement - increased amplitude of locomotory wave-form (variable). Suppresses the enteric muscle contraction (EMC) defect, the lethargy and egg-laying defects of unc-43(n498).

mScarlet-I::AID*::3xFlag tags inserted at the C-terminus of the endogenous ifet-1 locus. wrdSi3 [sun-1p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (II:0.77). Germline and early embryo-specific expression of TIR1 co-factor for AID, and tissue-specific AID-tagged blue protein in germline and early embryo nuclei. ifet-1 visualized by mScarlet in oocytes with inducible acute degradation when grown on 4mM auxin. No defect in hermaphrodite embryo viability. Reference: Bhatia P, et al. Life Sci Alliance. 2025 May 29;8(8):e202503387. doi: 10.26508/lsa.202503387. PMID: 40441896.

Triple mutant of the three spinster paralogs expressed exclusively in somatic tissues. Reference: Villalobos TV, et al. Nat Aging. 2023 Sep;3(9):1091-1106. PMID: 37580394.

Combination mutant made with 6x outcrossed lines KB10 mir-67(n4899) and KB11 mir-83(n4638).

Deletion alleles. Can be maintained at 20C. Sterile at 26C. Can use PCR with the following primer to determine whether both deletions are present. (5'end)5'GGTCTACCAGAGTTTGTGCGCAATC3' (3'end)5'GATAGCCTTGCACTTCGTTG3'. PCR products from wild type show two bands; kgb-1 gene shows a smaller band; kgb-2 gene shows a bigger band.The double mutant should have no PCR product. [NOTE: The 5' primer sequence was corrected 03/28/12 (K. Bennett)]

DEET-resistant. ejd2 causes a F48V substitution in nstp-3. Reference: Dennis EJ, et al. Nature. 2018 Oct;562(7725):119-123.

cpIs56 [mex-5p::TagRFP-T::PLC(delta)-PH::tbb-2 3'UTR + unc-119 (+)] II. Reporter labels plasma membrane in early embryo. Transgene construct consisted of a germline promoter sequence (mex-5) driving the expression of a fluorescent protein fused to the N-terminus of the the pleckstrin homology domain from phospholipase C-(delta)1 (PH domain) and a 2x Flag epitope tag. Reference: Heppert JK, et al. Mol Biol Cell. 2016 Nov 7;27(22):3385-3394.

cpIs53 [mex-5p::GFP-C1::PLC(delta)-PH::tbb-2 3'UTR + unc-119 (+)] II. Reporter labels plasma membrane in early embryo. Transgene construct consisted of a germline promoter sequence (mex-5) driving the expression of a fluorescent protein fused to the N-terminus of the pleckstrin homology domain from phospholipase C-(delta)1 (PH domain) and a 2x Flag epitope tag. Reference: Heppert JK, et al. Mol Biol Cell. 2016 Nov 7;27(22):3385-3394.

cpIs54 [mex-5p::mKate::PLC(delta)-PH(A735T)::tbb-2 3'UTR + unc-119 (+)] II. Reporter labels plasma membrane in early embryo. Transgene construct consisted of a germline promoter sequence (mex-5) driving the expression of a fluorescent protein fused to the N-terminus of the pleckstrin homology domain from phospholipase C-(delta)1 (PH domain) and a 2x Flag epitope tag. Reference: Heppert JK, et al. Mol Biol Cell. 2016 Nov 7;27(22):3385-3394.

cpIs55 [mex-5p::mCherry-C1::PLC(delta)-PH::tbb-2 3'UTR + unc-119 (+)] II. Reporter labels plasma membrane in early embryo. Transgene construct consisted of a germline promoter sequence (mex-5) driving the expression of a fluorescent protein fused to the N-terminus of the pleckstrin homology domain from phospholipase C-(delta)1 (PH domain) and a 2x Flag epitope tag. Reference: Heppert JK, et al. Mol Biol Cell. 2016 Nov 7;27(22):3385-3394.

cpIs64 [mex-5p::mYPet::PLC(delta)-PH::tbb-2 3'UTR + unc-119 (+)] II. Reporter labels plasma membrane in early embryo. Transgene construct consisted of a germline promoter sequence (mex-5) driving the expression of a fluorescent protein fused to the N-terminus of the pleckstrin homology domain from phospholipase C-(delta)1 (PH domain) and a 2x Flag epitope tag. Reference: Heppert JK, et al. Mol Biol Cell. 2016 Nov 7;27(22):3385-3394.

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.

cpSi171 [vha-8p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (I:-5.32). Expression of TIR1 co-factor for AID, and tissue-specific AID-tagged blue protein in multiple tissues including intestine, hypodermis, and excretory cell.

cpSi172 [myo-2p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (I:-5.32). Expression of TIR1 co-factor for AID, and tissue-specific AID-tagged blue protein in the pharynx.

cpSi174 [myo-3p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (I:-5.32). Expression of TIR1 co-factor for AID, and tissue-specific AID-tagged blue protein in body wall muscle.

Hypersensitive to hypoxia. Deletion corresponds to base pairs 13056-13629 in the published F08B12 sequence (genebank accession # Z68104).