aSi23 [lox2272::Cbr-unc-119(+)::lox2272::mec-7p:: NLS::GCaMP7f::egl-13-NLS::SL2::NLS::mScarlet-I:: egl-13-NLS] II. mec-7 promoter driving nuclear-localized expression of GCaMP7f in ALM, PLM, AVM & PVM neurons. Reference: Ding J, et al. GE (Bethesda). 2023 Sep 30;13(10):jkad183. doi: 10.1093/g3journal/jkad183. PMID: 37565483.

aSi26 [lox2272::Cbr-unc-119(+)::lox2272::mec-7p:: NLS::GCaMP7s::ras-2-CAAX::SL2::mScarlet-I::ras-2-CAAX] II. mec-7 promoter driving membrane-localized expression of GCaMP7f in ALM, PLM, AVM & PVM neurons. Reference: Ding J, et al. GE (Bethesda). 2023 Sep 30;13(10):jkad183. doi: 10.1093/g3journal/jkad183. PMID: 37565483.

aSi31 [lox2272::Cbr-unc-119(+)::lox2272::mec-7p:: NLS::GCaMP7f::ras-2-CAAX::SL2::mScarlet-I::ras-2-CAAX] II. mec-7 promoter driving membrane-localized expression of GCaMP7f in ALM, PLM, AVM & PVM neurons. Reference: Ding J, et al. GE (Bethesda). 2023 Sep 30;13(10):jkad183. doi: 10.1093/g3journal/jkad183. PMID: 37565483.

ccIs4251 [(pSAK2) myo-3p::GFP::LacZ::NLS + (pSAK4) myo-3p::mitochondrial GFP + dpy-20(+)] I. qtIs3 [myo-2p::GFP dsRNA hairpin]. mIs11 [myo-2p::GFP + pes-10p::GFP + gut-promoter::GFP]. GFP expression in 4-cell embryos, pharyngeal muscle and gut. Resistant to systemic RNAi by feeding and injection and endogenous hairpin expression.

ccIs4251 [(pSAK2) myo-3p::GFP::LacZ::NLS + (pSAK4) myo-3p::mitochondrial GFP + dpy-20(+)] I. qtIs3 [myo-2p::GFP dsRNA hairpin]. mIs11 [myo-2p::GFP + pes-10p::GFP + gut-promoter::GFP]. GFP expression in 4-cell embryos, pharyngeal muscle and gut. Resistant to systemic RNAi by feeding only.

ccIs4251 [(pSAK2) myo-3p::GFP::LacZ::NLS + (pSAK4) myo-3p::mitochondrial GFP + dpy-20(+)] I. Resistant to systemic RNAi, but sensitive to autonomous RNAi.

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. Reference: Ashley GE, et al. Genetics. 2021 Mar 31;217(3):iyab006. doi: 10.1093/genetics/iyab006. PMID: 33677541

wrdSi18 [^SEC^mex-5p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (I:-5.32). 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. 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

wrdSi50 [mex-5p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (I:-5.32). 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. Reference: Ashley GE, et al. Genetics. 2021 Mar 31;217(3):iyab006. doi: 10.1093/genetics/iyab006. PMID: 33677541

wrdSi8 [^SEC^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. 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

wrdSi51 [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. 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

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.

peIs1709 [gpc-1p::FLAG::pab-1::sl2::NLS::GFP + unc-122p::mCherry]. FLAG-tagged poly(A)-binding protein (PAB-1) can be used for mRNA tagging. Reference: Tomioka M, et al. Nat Commun. 2016 May 20;7:11645. PMID: 27198602

peIs1710 [glr-1p::FLAG::pab-1::sl2::NLS::GFP + unc-122p::mCherry]. FLAG-tagged poly(A)-binding protein (PAB-1) can be used for mRNA tagging. Reference: Tomioka M, et al. Nat Commun. 2016 May 20;7:11645. PMID: 27198602

peIs2113 [gcy-21p::mCaspase + tax-4p::NLS::YC2.60 + lin-44p::GFP]. Genetic ablation of ASG neurons by specific expression of caspase. tax-4p::YC2.60 facilitates calcium imaging. Reference: Jang MS, et al. Proc Natl Acad Sci U S A. 2019 Sep 10;116(37):18673-18683. PMID: 31455735

qjIs11 [glr-1p::SVNLS2::TagBFPsyn + ser-2(prom2)::SVNLS2::TagBFPsyn]. peIs3042 [eat-4p::svnls2::TagRFP675syn + lin-44p::GFP]. peIs2100 [H-20p::NLS4::mCherry]. qjIs14 [H20p::NLS::YC2.60]. Suitable for whole-brain calcium imaging. mCherry and YC2.60 expression in almost all head neurons. BFP and RFP are also expressed to annotate neurons. H20p is a pan-neuronal promoter expressed in almost all neurons, GLR glial cells, XXX hypodermal cells, pharyngeal gland cells and HMC cells. Reference: Toyoshima Y et al. BMC Biol. 2020 Mar 19;18(1):30. PMID: 32188430; Shioi G, et al. Genetics. 2001 Apr;157(4):1611-22. PMID: 11290717.

nuIs183 [unc-129p::nlp-21::Venus + myo-2p::GFP]. [NOTE: nuIs183 was previously described as carrying myo-2p::NLS::GFP.] Reference: Sieburth D, et al. Nat Neurosci. 2007 Jan;10(1):49-57.

nuIs190 [unc-129p::ins-22::Venus + myo-2p::NLS::GFP] X. Pick GFP+ to maintain. Not all animals express GFP. Array might be prone to silencing or not homozygous. [NOTE: nuIs190 was previously described as carrying myo-2p::GFP without an NLS.] Reference: Ch'ng Q, Sieburth D, Kaplan JM. PLoS Genet. 2008 Nov;4(11):e1000283.

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.

bcSi69 [hsp-16.41p::dCas9::SV40-NLS::HA::GS-linker::SV40-NLS::GFP::GFP::SV40-NLS::mai-2 3’UTR + Cbr-unc-119(+)] IV. [NOTE: MD4195 can be maintained at 20C instead of 15C because it does not carry an array with guide RNAs targeting essential genes.] Generated in parental strain EG8081. Reference: Memar N, et al. In vivo labeling of endogenous genomic loci in C. elegans using CRISPR/dCas9. MicroPubl Biol. 2022 Dec 13;2022:10.17912/micropub.biology.000701. doi: 10.17912/micropub.biology.000701. PMID: 36606081; PMCID: PMC9807462.

bcSi69 [hsp-16.41p::dCas9::SV40-NLS::HA::GS-linker::SV40-NLS::GFP::GFP::SV40-NLS::mai-2 3’UTR + Cbr-unc-119(+)] IV. bcEx1367 [U6p::rrn-4(sgRNAs1-4 targeting the rrn-4 locus) + rol-6(su1006)]. Maintain at 15C. Pick Rollers to maintain. After heat shock, distinct spots of GFP fluorescence are visible in the nucleus. bcEx1367 array contains a PCR product of 4 different guide RNAs targeting rrn-4 (around 100 repeats of rrn-4 on LG V). Reference: Memar N, et al. In vivo labeling of endogenous genomic loci in C. elegans using CRISPR/dCas9. MicroPubl Biol. 2022 Dec 13;2022:10.17912/micropub.biology.000701. doi: 10.17912/micropub.biology.000701. PMID: 36606081; PMCID: PMC9807462.

bcSi69 [hsp-16.41p::dCas9::SV40-NLS::HA::GS-linker::SV40-NLS::GFP::GFP::SV40-NLS::mai-2 3’UTR + Cbr-unc-119(+)] IV. bcEx1368 [U6p::rrn-1(sgRNAs1-4 targeting the rrn-1 locus) + rol-6(su1006)]. Maintain at 15C. Pick Rollers to maintain. After heat shock, distinct spots of GFP fluorescence are visible in the nucleus. bcEx1368 array contains a PCR product of 4 different guide RNAs targeting rrn-1 (around 100 repeats of rrn-1 on LG I). Reference: Memar N, et al. In vivo labeling of endogenous genomic loci in C. elegans using CRISPR/dCas9. MicroPubl Biol. 2022 Dec 13;2022:10.17912/micropub.biology.000701. doi: 10.17912/micropub.biology.000701. PMID: 36606081; PMCID: PMC9807462.

bcSi69 [hsp-16.41p::dCas9::SV40-NLS::HA::GS-linker::SV40-NLS::GFP::GFP::SV40-NLS::mai-2 3’UTR + Cbr-unc-119(+)] IV. bcEx1370 [U6p::rrn-4(sgRNAs1-4 targeting the rrn-1 locus) + U6p::rrn-4(sgRNAs1-4 targeting the rrn-4 locus) + rol-6(su1006)]. Maintain at 15C. Pick Rollers to maintain. After heat shock, distinct spots of GFP fluorescence are visible in the nucleus. bcEx1370 array contains a PCR product of 4 different guide RNAs targeting rrn-1 (around 100 repeats of rrn-1 on LG I) and a PCR product of 4 different guide RNAs targeting rrn-4 (around 100 repeats of rrn-4 on LG V). Reference: Memar N, et al. In vivo labeling of endogenous genomic loci in C. elegans using CRISPR/dCas9. MicroPubl Biol. 2022 Dec 13;2022:10.17912/micropub.biology.000701. doi: 10.17912/micropub.biology.000701. PMID: 36606081; PMCID: PMC9807462.

otIs339 [ceh-43(+)(fosmid)::GFP + ttx-3::DsRed + rol-6(su1006)]. otIs355 [rab-3::NLS::tagRFP]. Rollers.

otIs339 [ceh-43(+)(fosmid)::GFP + ttx-3::DsRed + rol-6(su1006)]. otIs355 [rab-3::NLS::tagRFP]. norEx42 [ast-1 Cosmid + ttx-3::GFP + dat-1::mCherry]. Rollers. gk463 embryonic lethality is rescued by extrachromosomal array. Pick mCherry+ animals to maintain.

risIs33 [K03A1.5p::3xFLAG::SV40-NLS::dCas9::SV40-NLS::VP64::HA + unc-119(+)]. risIs33 transgene stably expresses a 171 kDa dCas9::VP64 fusion protein suitable for CRISPR activation (CRISPRa) in C. elegans, as described in Fischer F, et al. J Biol Chem. 2022 May 27;102085. doi: 10.1016/j.jbc.2022.102085. PMID: 35636511.

risIs33 [K03A1.5p::3xFLAG::SV40-NLS::dCas9::SV40-NLS::VP64::HA + unc-119(+)]. risIs33 transgene stably expresses a 171 kDa dCas9::VP64 fusion protein suitable for for CRISPR activation (CRISPRa) in C. elegans, as described in Fischer F, et al. J Biol Chem. 2022 May 27;102085. doi: 10.1016/j.jbc.2022.102085. PMID: 35636511. Derived by crossing parental strains MIR249 and ZG31.

risIs33 [K03A1.5p::3xFLAG::SV40-NLS::dCas9::SV40-NLS::VP64::HA + unc-119(+)]. risIs33 transgene stably expresses a 171 kDa dCas9::VP64 fusion protein suitable for for CRISPR activation (CRISPRa) in C. elegans, as described in Fischer F, et al. J Biol Chem. 2022 May 27;102085. doi: 10.1016/j.jbc.2022.102085. PMID: 35636511. Derived by crossing parental strains MIR249 and PS3551.

risIs33 [K03A1.5p::3xFLAG::SV40-NLS::dCas9::SV40-NLS::VP64::HA + unc-119(+)]. gpIs1 [hsp-16.2p::GFP]. Inducible GFP fluorescence after >1 hour heat shock at 35C. risIs33 transgene stably expresses a 171 kDa dCas9::VP64 fusion protein suitable for for CRISPR activation (CRISPRa) in C. elegans, as described in Fischer F, et al. J Biol Chem. 2022 May 27;102085. doi: 10.1016/j.jbc.2022.102085. PMID: 35636511. Derived by crossing parental strains MIR249 and TJ375.

lucIs39 [tbx-37p::mNeonGreen::2xNLS::tbx-37 3'UTR + pal-1p::mScarlet-I::2xNLS::tbb-2 3'UTR + med-2p::mScarlet-I::2xNLS::tbb-2 3'UTR]. Wild-type morphology. Integrated array allows for labeling and sorting of ABa and ABp descendants by FACS. Reference: Charest J, et al. Dev Cell. 2020 Sep 24;S1534-5807(20)30672-9. PMID: 33002421

Nuclear Ultrabright GFP::mNeonGreen Fluorescent protein (NuGFP) tag inserted downstream of the endogenous daf-2 gene locus by CRISPR/Cas9 engineering. NuGFP cassette is composed of an intercistronic region (ICR) from the C. elegans SL2-type operon, a SV40 nuclear localization sequence (NLS), the coding sequence of GFP, the coding sequence of mNeonGreen, and egl-13 NLS. The expression of NuGFP is tied to that of the endogenous daf-2, but after trans-splicing, the NuGFP protein is synthesized independently of DAF-2. This high-sensitivity daf-2 expression reporter was readily detectable in most C. elegans cells throughout development and adulthood. Reference: Zhang Y, et al. BioRxiv. 2021 Aug 2. 2007.2031.454567. https://doi.org/10.1101/2021.07.31.454567.

irIs25 [elt-2::NLS::GFP::lacZ + rol-6(su1006)] V.

syIs423 [15xUAS::?pes-10::GCaMP6s::SL2::mKate2::let-858 3'UTR + myo-2p::NLS::mCherry + 1kb DNA ladder(NEB)]. mirIs19 [nlp-12p::gal-4 + unc-122p::mCherry]. Maintain animals at 25C for several generations to enhance mKate expression in DVA to make it visible with a fluorescence dissection scope. Reference: Das R, et al. Sci Adv. 2021 Sep 17;7(38):eabg4617. doi: 10.1126/sciadv.abg4617. PMID: 34533987

nIs175 [ceh-28p::4xNLS::GFP + lin-15(+)] IV. Extra GFP+ M4 observed in nIs175. Reference: Takashi H, et al. PNAS 2010 Aug 31;107(35):15479-84.

nIs177 [ceh-28p::4NLS::GFP + lin-15(+)]. Extra ceh-28p::4NLS::GFP-expressing M4 seen in nIs177 (~30% penetrance). Reference: Hirose T, Horvitz HR. Nature. 2013 Aug 15;500(7462):354-8.

nIs348 [ceh-28p::4XNLS::mCherry + lin-15(+)] IV. Reporter construct contains 2.4 kb of ceh-28 promoter. Reference: Hirose T, et al. Proc Natl Acad Sci. 2010 Aug 31;107(35):15479-84. PMID: 20713707

nIs363 [D2096.6 (1.7kb UP)::pes-10::4xNLS::GFP + lin-15AB(+)]. Reference: Nakano S, et al. Development. 2010 Dec;137(23):4017-27 [NOTE (Aug 2019): the nIs363 trasngene in this strain was previously described as nIs363 [D2096.6 (1.7kb UP)::4xNLS-GFP] X.]

nIs283 [gcy-10p::4xNLS::GFP + lin-15(+)]. gcy-10p::4xNLS::GFP is expressed in I1 neurons. Reference: Hirose T, Horvitz HR. Nature. 2013 Aug 15; 500(7462): 354-358.

nIs396 [sams-5 3'::4xNLS-GFP + lin-15(+)] V. GFP expression in MI. Reference: Nakano S, et al. Development. 2010 Dec;137(23):4017-27

nIs425 [myo-2p::GFP] I. nIs175 [ceh-28p::4NLS::GFP + lin-15(+)] IV. Heterozygotes are GFP+ wild type and segregate GFP+ Unc, GFP+ wild type, and GFP- sptf-3 homozygotes. nIs425 was integrated into sptf-3(tm607)/hIn1[unc-101(sy241)] I. The position of integration appears to be close to or lie within the region covered by hIn1: sptf-3(tm607) heterozygotes are GFP+ whereas sptf-3(tm607) homozygotes do not express GFP in the pharynx. Reference: Hirose T, Horvitz HR. Nature. 2013 Aug 15;500(7462):354-8.