Endogenous cycl-2 locus tagged with mNeonGreen (mNG). Green fluorescence in sperm. Him. Reference: Krauchunas AR, et al. (2020). C. elegans CYLC-2 localizes to sperm. microPublication Biology. 10.17912/micropub.biology.000314.

ggIs1 [nrde-3p::3xFlag::GFP::nrde-3 ORF + unc-119(+)] IV. Nuclear GFP::NRDE-3 signal. Lacks RNA editing. Reference: Reich DP, et al. Genes Dev. 2018 Feb 1;32(3-4):271-282.

ggIs1 [nrde-3p::3xFlag::GFP::nrde-3 ORF + unc-119(+)] IV. Nuclear GFP::NRDE-3 signal. Enhanced RNAi. Lacks RNA editing. Vulval bursting. Low brood size. Triple mutants display bursting and low brood size phenotypes not observed in adr-1;adr-2 or rrf-3 parental strains. Reference: Reich DP, et al. Genes Dev. 2018 Feb 1;32(3-4):271-282.

byEx1551 [vha-6p::endu-2::eGFP::3xFLAG + myo-2p::mCherry]. Pick mCherry+ animals to maintain array. Transgene provides intestinal rescue of endu-2(tm4977) that also rescues mortal germline (Mrt) phenotype. Reference: Qi W, et al. (2020) A secreted endoribonuclease ENDU-2 from the soma protects germline immortality in C. elegans. BioRxiv. doi: 10.1101/2020.12.04.408260. Accepted by Nature Communications.

byEx1795 [unc-119p::endu-2::eGFP::3xFlag + rol-6(su1006)]. Pick Rollers to maintain. Transgene provides neuronal rescue of endu-2(tm4977) that also rescues mortal germline (Mrt) phenotype. Reference: Qi W, et al. (2020) A secreted endoribonuclease ENDU-2 from the soma protects germline immortality in C. elegans. BioRxiv. doi: 10.1101/2020.12.04.408260. Accepted by Nature Communications.

meIs8 [pie-1p::GFP::cosa-1 + unc-119(+)] II. ieSi38 [sun-1p::TIR1::mRuby::sun-1 3'UTR + Cbr-unc-119(+)] IV. Single copy transgene 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) in germ line and early embryos. References: Zhang L, et al. Development. 2015 Nov 9. pii: dev.129635. Zhang et al., Elife. 2018 Mar 9;7. pii: e30789.

meIs8 [pie-1p::GFP::cosa-1 + unc-119(+)] II. ieSi38 [sun-1p::TIR1::mRuby::sun-1 3'UTR + Cbr-unc-119(+)] IV. Single copy transgene 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) in germ line and early embryos. References: Zhang L, et al. Development. 2015 Nov 9. pii: dev.129635. Zhang et al., Elife. 2018 Mar 9;7. pii: e30789.

meIs8 [pie-1p::GFP::cosa-1 + unc-119(+)] II. ieSi38 [sun-1p::TIR1::mRuby::sun-1 3'UTR + Cbr-unc-119(+)] IV. Single copy transgene 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) in germ line and early embryos. References: Zhang L, et al. Development. 2015 Nov 9. pii: dev.129635. Zhang et al., Elife. 2018 Mar 9;7. pii: e30789.

meIs8 [pie-1p::GFP::cosa-1 + unc-119(+)] II. ieSi38 [sun-1p::TIR1::mRuby::sun-1 3'UTR + Cbr-unc-119(+)] IV. Single copy transgene 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) in germ line and early embryos. References: Zhang L, et al. Development. 2015 Nov 9. pii: dev.129635. Zhang et al., Elife. 2018 Mar 9;7. pii: e30789.

unc-44(ju1413[unc-44::GFP::LoxP::3xflag]) IV. UNC-44C (short isoform of UNC-44) tagged with GFP. UNC-44C is strongly expressed in multiple tissues: nervous system (from 1.5-fold stage to adult), epidermis (from early embryo to adult), seam cells (from L1 to L4), vulva (from L3 to adult), and spermatheca/sheath cells (from L4 to adult). Reference: Chen F, Chisholm AD, Jin Y. Development. 2017 Feb 15;144(4):698-707.

juSi364 [unc-17Bp::3xFLAG::eif-3.g::SL2::GFP] IV. GFP expression in cholinergic motor neurons. Convulsing worms. Strain is suitable for neuron-type eCLIP. Reference: Blazie S, et al. Elife. 2021 Jul 29;10:e68336. PMID: 34323215.

Endogenous vwa-8 locus tagged with GFP and 3xFLAG. VWA-8::GFP is expressed in mitochondria of hypodermis, intestine, and muscle, but not detectable in neurons. Reference: Zhu, M, et al. A null mutation of C. elegans vwa-8. microPublication Biology. https://doi.org/10.17912/micropub.biology.000263.

Apparently wild type

Superficially wild type

Superficially wild type

Superficially wild type

Superficially wild type

Superficially wild type

Superficially wild type

Superficially wild type

Superficially wild type

Superficially wild type

Although this strain is maintainable as a homozygote it produces many dead embryos (~80%) and has a low viable brood size (~24 ± 18). Thus, the GFP tag compromises CYB-3 function.

Viable and fertile, grows and moves well. No apparent abnormalities yet noted. Reference: Spike CA, et al. Genetics. 2022 May 5;221(1):iyac051. doi: 10.1093/genetics/iyac051. PMID: 35377419

CRISPR/Cas9 insertion of GFP into the N-terminus of cki-1; seems to cause cki-1 gain-of-function phenotype (early cell cycle exit for some post-embryonic blast cells). Reference: Adikes RC, et al. "Visualizing the metazoan proliferation-terminal differentiation decision in vivo." bioRxiv 2019.12.18.881888

mKate tag inserted at 5' end of endogenous rheb-1 locus. Ubiquitous expression.

Green nuclei and ubiquitous cytosolic red expression, typically excluded from nuclei but with activity-dependent translocation into nuclei. Derived in an N2 background. C-terminally tagged mpk-1 is detectable by triplex PCR: mpk-1 genotyping FW: ACCAAAACAACCATGGGCTCG mpk-1 genotyping RV-1: GCTCCAAGTATGGGTGAGCC mpk-1 genotyping RV-2: GGTTCCCTCGTATGGCTTTCC Reference: Neal R, et al. (2021). Nuclear translocation of tagged endogenous ERK/MPK-1 MAP Kinase denotes a subset of activation events in C. elegans development.

Ubiquitous expression with cytosolic localization. Derived in an N2 background. Detection with triplex primers: HS125 5’-CTTGTCACTGTAAGGGAAGATTTCC-3’ HS126 5’-TTGTCCTCCTCTCCCTTGG-3’ HS127 5’ ACGTAGAATGTTCCAGAGTTCCAG-3' Reference: Shin H, et al. Cell Rep. 2018 Sep 4;24(10):2669-2681. PMID: 30184501

mNeonGreen and 3xFlag tag inserted at 3' end of endogenous pmk-1 locus. Fluorescent green signal detected in both cytosol and nuclei of all somatic cells; might be silenced in the germ line. Generated in an N2 background. Reference: Shin H, et al. Cell Rep. 2018 Sep 4;24(10):2669-2681. PMID: 30184501

Ubiquitous expression and localization to plasma membranes. Derived in an N2 background. TD185 5’ -GCCGGAAGAGTGATGAACCC- 3’ TD186 5’ -TAATGAGCTCGGAGACCATGGC- 3’ TD187 5’ -CGCACCTCATCATACATGAACTGC- 3’ Reference: Shin H, et al. Cell Rep. 2018 Sep 4;24(10):2669-2681. PMID: 30184501

AID tag in 5' end of mKate2-tagged endogenous rheb-1. Ubiquitous red expression.

fkh-6(ez73[3xflag + Cbr-unc-119(+)]) II.

tra-1(ez72[biotag::GFP::TEV::3xflag::tra-1]) III.

tra-1(ez72[biotag::GFP::TEV::3xflag::tra-1]) III. zuIs236 [his-72(1 kb 5'UTR)::BIRA::GFP::his-72(1 kb 3'UTR) + unc-119(+)]. Location of zuIs236 is not known, but is not in LG III.

egxSi136 [mex-5p::tomm-20::halotag::pie-1 3’UTR + unc-119(+)] II. GFP and 3xFLAG tags inserted into endogenous cox-4 locus to create a C-terminal translational GFP fusion. Outer membranes are stably labeled with the TOMM-20::Halotag transgene, and the mitochondria matrix are labeled with COX-4::GFP. Reference: Fan X, et al. G3 (accepted).

efEx12 [glp-1::TY1::EGFP::3xFLAG(92C12) + unc-119(+)]. Pick non-Unc to maintain. GFP expression in the proliferative region of the germ line (resembling endogenous GLP-1 protein localization), and also in spermatheca and other somatic tissues. Derived by bombarding strain DP38 with LAP-tagged glp-1 fosmid (WRM0630DF02).

Superficially wild type. N-terminal tag of DAF-18 via CRISPR/Cas9 knock-in of mNeonGreen at daf-18 locus. Insertion verified by PCR and fluorescence. Left flank: 5' gcagtttccaggtacatctactaaccccca 3'; Right flank: 5' ATGGTTACTCCTCCTCCAGATGTGCCAAGC 3'; sgRNA: GGAGGAGGAGTAACCATtgg; Cas9/sgRNA plasmid: pGLOW27; mNG^SEC^3xFlag plasmid: pGLOW53; SEC insertion allele strain: GLW24. Reference: Huang et al. 2021. Improved CRISPR/Cas9 knock-in efficiency via the self-excising cassette (SEC) selection method in C. elegans. 2021 Sep 16;2021:10.17912/micropub.biology.000460. doi: 10.17912/micropub.biology.000460. eCollection 2021.

Superficially wild type. C-terminal tag of T28D6.6 via CRISPR/Cas9 knock-in of mNeonGreen at T28D6.6 locus. Insertion verified by PCR and fluorescence. Left flank: 5' gtcgcaaataatggttttttttccagAGTC 3'; Right flank: 5' TAAgctgaaattcccgtgcttctcgtcttc 3'; sgRNA: gggaatttcagcTTAGACTc; Cas9/sgRNA plasmid: pGLOW2; mNG^SEC^3xFlag plasmid: pGLOW42; SEC insertion allele strain: GLW32. Reference: Huang et al. 2021. Improved CRISPR/Cas9 knock-in efficiency via the self-excising cassette (SEC) selection method in C. elegans. 2021 Sep 16;2021:10.17912/micropub.biology.000460. doi: 10.17912/micropub.biology.000460. eCollection 2021.

N-terminal tag of T13C2.6 via CRISPR/Cas9 knock-in of mNeonGreen at T13C2.6 locus. Insertion verified by PCR and fluorescence. Left flank: 5' aaatattaattgataatcagaggagtaaaa 3'; Right flank: 5' ATGAGGACATGTCTCACCCTCACGGGTTTC 3'; sgRNA: taatcagaggagtaaaaATG; Cas9/sgRNA plasmid: pGLOW45; mNG^SEC^3xFlag plasmid: pGLOW54; SEC insertion allele strain: GLW34.

N-terminal tag of CCDC-47 via CRISPR/Cas9 knock-in of mNeonGreen at ccdc-47 locus. Insertion verified by PCR, Sanger sequencing, and fluorescence. Left flank: 5' gttaaatcactcaatttcgggtcgttcacc 3'; Right flank: 5' ATGAAGATAGTATGGATTTTCCTAATATTC 3' (3 silent mutations); sgRNA: cgttcaccATGAAAATCGTC; Cas9/sgRNA plasmid: pGLOW13; mNG^SEC^3xFlag plasmid: pGLOW17; SEC insertion allele strain (balanced): GLW38.

N-terminal tag of NHR-8 via CRISPR/Cas9 knock-in of mNeonGreen at nhr-8 locus. Insertion verified by PCR and Sanger sequencing. Left flank: 5' taatcactaaaacaaaaatttcgtcattcc 3'; Right flank: 5' ATGCCTTCGTCTTCTCCATCGATGGACGAG 3'; sgRNA: CGATGGAGAAGACGAAGGCA; Cas9/sgRNA plasmid: pGLOW55; mNG^SEC^3xFlag plasmid: pGLOW56; SEC insertion allele strain: GLW40.

N-terminal tag of EDC-3 via CRISPR/Cas9 knock-in of mNeonGreen at edc-3 locus. Insertion verified by PCR and fluorescence. Left flank: 5' ggttccaattcttctgatttcaaattaaaa 3'; Right flank: 5' ATGGATGACAAACTCATTGGAAGCGTCATCTCTACGGAGACAAAGGACGG 3' (7 silent mutations); sgRNA: ATATCAACCGAAACTAAAGA; Cas9/sgRNA plasmid: pGLOW81; mNG^SEC^3xFlag plasmid: pGLOW103; SEC insertion allele strain: GLW42.

C-terminal tag of ZK1058.9 via CRISPR/Cas9 knock-in of mNeonGreen at ZK1058.9 locus. Insertion verified by PCR and fluorescence. Left flank: 5' AGCTCAACGGCTAGCTGGTCTCGTTATTAT 3' (1 silent mutation); Right flank: 5' TAAtgaattttcctccaacttttgtcctct 3'; sgRNA: AATAACGAGACCAGCTAG (18 bp); Cas9/sgRNA plasmid: pGLOW58; mNG^SEC^3xFlag plasmid: pGLOW68; SEC insertion allele strain: GLW44.

C-terminal tag of HSP-4 via CRISPR/Cas9 knock-in of mNeonGreen at hsp-4 locus. Insertion verified by PCR and fluorescence. Left flank: 5' TCGGCCGGAGGACAAGGAGAACAAGCTTCTGAGGAGCCATCGGAGGATCATGATGAACTG 3' (1 silent mutation); Right flank: 5' TAAaatattaattgccttcaactacttgct 3'; sgRNA: CGTCTCCAAACTTTACTCGG; Cas9/sgRNA plasmid: pGLOW44; mNG^SEC^3xFlag plasmid: pGLOW61; SEC insertion allele strain: GLW46.

N-terminal tag of CEY-1 via CRISPR/Cas9 knock-in of mNeonGreen at cey-1 locus. Insertion verified by PCR and fluorescence. Left flank: 5' accagaggaagaacagaagcgcgcggaaca 3'; Right flank: 5' ATGGCGGAGAAAAACgtaagtgtgtgtctc 3' (1 silent mutation); sgRNA: acacacacttacGTTTTTCT; Cas9/sgRNA plasmid: pGLOW71; mNG^SEC^3xFlag plasmid: pGLOW93; SEC insertion allele strain (balanced): GLW50.

N-terminal tag of ASP-3 via CRISPR/Cas9 knock-in of mNeonGreen at asp-3 locus. Insertion verified by PCR and fluorescence. Left flank: 5' gcgctgcttctcaattagtgataacgcacc 3'; Right flank: 5' ATGTCGGGCCGCGTTTTCCTTCTTCTGGCT 3'; sgRNA: tagtgataacgcaccATGT (19 bp); Cas9/sgRNA plasmid: pGLOW74; mNG^SEC^3xFlag plasmid: pGLOW96; SEC insertion allele strain: GLW58.

N-terminal tag of PQN-59 via CRISPR/Cas9 knock-in of mNeonGreen at pqn-59 locus. Insertion verified by PCR and fluorescence. Left flank: 5' gaccctttttatttataatttgttttcaga 3'; Right flank: 5' ATGGGTATTAAAGGCGACAAAAAAGCTACT 3’ (1 silent mutation); sgRNA: TGCAAGTCGCGCTTGATCGC; Cas9/sgRNA plasmid: pGLOW23; mNG^SEC^3xFlag plasmid: pGLOW24; SEC insertion allele strain (balanced): GLW62.

Constructed by crossing individual fluorescence knock-in worms. GFP inserted into the endogenous che-3 locus at the N-terminus and tagRFP::3xFlag inserted into the endogenous xbx-1 locus at the C-terminus by Cas9-triggered homologous recombination. Fluorescence enriched in most if not all sensory cilia. Very weak fluorescence in the cell bodies of ciliated neurons.

Constructed by crossing individual fluorescence knock-in worms. GFP inserted into the endogenous klp-20 gene at its C-terminus, tagRFP::3xFlag inserted into the endogenous xbx-1 gene at its C-terminus and tagBFP inserted into the endogenous ift-81 gene at its C-terminus by Cas9-triggered homologous recombination. GFP enriched at the proximal region (middle segment) of amphid or phasmid sensory cilia while red and blue fluorescence enriched along the whole cilia. Very weak fluorescence in the cell bodies of ciliated neurons.

xeSi302 [nhx-2p::npp-9::GFP::BLRP::3xFLAG::unc-54 3'UTR + Cbr-unc-119(+)] II. gwIs114 [hsp-16.2p::hlh-1 + rol6(su1006)]. Intestine-specific expression of nuclear GFP reporter. Rollers have heat-shock-inducible expression of hlh-1 transcription factor. gwIs114 was generated using constructs provided by Michael W. Krause`s lab (NIDDK). Reference: Gonzalez-Sandoval A, et al. Cell. 2015 Dec 3;163(6):1333-47. doi: 10.1016/j.cell.2015.10.066. PMID: 26607792.