shEx34 [myo-3p::mCherry]. Pick mCherry+ to maintain. This strain serves as a control strain to ABR16. Reference: Han S, et al. Nature 2017 doi: 10.1038/nature21686.

shEx1 [ges-1p::fat-7 + myo-3p::mCherry]. Pick mCherry+ to maintain. FAT-7 over-expressing strain. ABR14 serves as a control strain for this strain. Reference: Han S, et al. Nature 2017 doi: 10.1038/nature21686.

acd-1 and delm-2 are tandem paralogs. This double mutant was created by CRISPR-engineered deletion of acd-1 in a delm-2(ok1822) background (parental strain RB1523). acd-1(sta6) is predicted to be a null allele (~200bp indel causing frameshift in exon 4).

acd-1 and delm-2 are tandem paralogs. This double mutant was created by CRISPR-engineered deletion of acd-1 in a delm-2(ok1822) background (parental strain RB1523). acd-1(sta6) is predicted to be a null allele (~200bp indel causing frameshift in exon 4). This triple mutant strain was made by crossing the acd-1(sta6) delm-2(ok1822) double mutant with delm-1(ok1226) parental strain RB1177.

GFP tag inserted into endogenous lpin-1 locus. The strain was generated by using 5' attgttgctggcatcaaaaa crRNA for C-terminal lpin-1 editing and using dpy-10 editing as a co-conversion marker, followed by outcrossing twice to ABR lab stock of N2 to eliminate the dpy-10 co-conversion marker. Reference: Papsdorf et al, Nature Cell Biology, 2023, PMID 37127715. [NOTE: This strain was incorrectly named WBM1369 lpin-1(sta10[lpin-1::GFP]) in an earlier version of the paper.]

staIs1 [pie-1p::GFP + unc-119(+)]. Superficially wild-type. Maintain under normal conditions. Reference: This strain was used as the empty vector control in Greer EL et al Nature 2010 doi: 10.1038/nature09195.

staIs2 [pie-1p::rbr-2::GFP + unc-119(+)]. Extended longevity. Maintain under normal conditions. Reference: This strain was used as LC Ppie-1::rbr-2::GFP (#3) in Greer EL et al Nature 2010 doi: 10.1038/nature09195.

Mesorhabditis spiculigera. Isolated in Pennsylvania. NOTE: (06/10/2016) AF72 was originally described as Mesorhabditis miotki, but K. Kiontke has determined through morphological inspection that this is actually a strain of Mesorhabditis spiculigera.

Neodiplogasteridae: Pristionchus Iheritieri, Maupas, 1919. Isolated in Ontario, Canada. [9/98: Ralf Sommer has found this strain to be hermaphroditic. He had successful matings between AF8130 and PS312 Pristionchus pacificus, indicating that AF8130 is probably P. pacificus.]

Temperature-sensitive embryonic-lethal mutant. Maintain at 15C. Shift L4s to 25C overnight to observe mutant phenotype of embryos produced by adults. Mutants lack a central spindle during early embryonic mitosis and exhibits a late cytokinesis defect (cleavage furrows regress after ingressing in nearly to the center of dividing embryonic cells). This strain can be used for CRISPR-Cas9 co-conversion. There is a causal mis-sense mutation present in zen-4(cle5), GAC to AAC (D520N), and one silent mutation, GCA to GCT at codon 519, that introduces an AluI site for RFLP analysis. A previous deposited version of this strain, zen-4(ok153), possessed two mis-sense mutations: GAC to AAC (D520N) and GAT to AAT (D735N). Reference: Farboud B, et al. Genetics Early online November 30, 2018; https://doi.org/10.1534/genetics.118.301775.

Temperature-sensitive embryonic-lethal mutant. Maintain at 15C. Shift L4s to 25C overnight to observe mutant phenotype of embryos produced by adults. Mutants lack a central spindle during early embryonic mitosis and exhibits a late cytokinesis defect (cleavage furrows regress after ingressing in nearly to the center of dividing embryonic cells). This strain can be used for CRISPR-Cas9 co-conversion. There is a causal mis-sense mutation present in zen-4(cle10), GAC to AAC (D520N), and two silent mutations. One silent mutation is a CGA to CGG mutation at codon 523 that creates a recognition site for a Cas9 guide RNA, in order to use zen-4(cle10ts) as a CRISPR/Cas9 co-conversion marker. The other silent mutation is a GCA to GCT mutation at codon 519 that introduces an AluI site for RFLP analysis. Reference: Farboud B, et al. Genetics Early online November 30, 2018; https://doi.org/10.1534/genetics.118.301775.

avEx123 [lpin-1p::GFP::his-58::lpin-1 3'UTR + unc-119(+)]. No GFP expression detected in germline.

armEx58 [WRM0611aH08-Del8mer + unc-119(+)]. Pick non-Unc to maintain. This strain contains a transgenic array that expresses a derivative WRM0611aH08 fosmid. The WRM0611aH08 fosmid contains the niDF199 locus (around 4 kb) that is deleted in the natural C. elegans isolate strain JU258. JU258 worms lack specific 21U-RNAs normally present in N2 worms due to this deletion of the niDF199 locus. This derivative fosmid construct lacks the upstream 8-mer motif (CTGTTTCA) next to 21U-3372. The expression of this individual 21U-RNA is lost in transgenic animals. unc-119(ed3) was crossed into JU258, the niDf199IV deletion was confirmed by PCR, and these Unc worms were used for bombardment. Reference: Cecere G, et al. Mol Cell. 2012 Sep 14;47(5):734-45.

armEx53 [WRM0611aH08 + 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. This strain contains a transgenic array that expresses the WRM0611aH08 fosmid construct. This fosmid contains the niDF199 locus (around 4 kb) that is deleted in the natural C. elegans isolate strain JU258. JU258 worms lack specific 21U-RNAs normally present in N2 worms due to this deletion of the niDF199 locus. Expression of this fosmid construct in JU258 worms restores the expression of the missing 21U-RNAs in the germline, as measured by RT-qPCR. Reference: Cecere G, et al. Mol Cell. 2012 Sep 14;47(5):734-45.

zhIs35 [let-23::GFP + unc-119(+)] I. zhIs35 resuces let-23(sy1) and recapitulates LET-23 antibody staining in VPCs. let-23::GFP transgene expression is higher in this strain than in AH1779 unc-119(ed3) III; zhIs38. Reference: Haag A, et al. PLoS Genet. 2014 May 1;10(5):e1004341.

rmIs126 [unc-54p::Q0::YFP]. Diffuse distribution of Q0::YFP throughout the body-wall muscle cells. Worms maintain a soluble phenotype for the duration of their lifespan. [NOTE: This strain is a replacement for AM134, which was removed from distribution due to reports that it did not carry the correct transgene.]

wtfIs145 [rab-3p::his-24::GCaMP6s::unc-54 3'UTR + pha-1(+)]. Pan-neuronal expression of nuclear-localized GCaMP6s. Reference: Sharma AK, et al. Genetics 2024 May 11:iyae077. doi: 10.1093/genetics/iyae077 PMID: 38733622.

wtfIs145 [rab-3p::his-24::GCaMP6s::unc-54 3' UTR + pBX]. GCaMP6s transgene allows for imaging whole-brain calcium activity with neuronal identification using NeuroPAL system. See description of strain OH15262 for full description of otIs669 NeuroPAL (Neuronal Polychromatic Atlas of Landmarks) transgene (Yemini E, et al. Cell. 2021 Jan 7;184(1):272-288.e11. PMID: 33378642). Derived by out-crossing parental strain OH15262 an additional six times before incorporating wtfIs145. References: Yu X, et al. Elife. 2021 Jul 14;10:e66410. doi: 10.7554/eLife.66410. PMID: 34259623. Randi F, et al. Nature 2023 Nov;623(7986):406-414. doi: 10.1038/s41586-023-06683-4. PMID: 37914938. Sharma AK, et al. Genetics 2024 May 11:iyae077. doi: 10.1093/genetics/iyae077 PMID: 38733622.

juSi164 [mex-5p::HIS-72::miniSOG + Cbr-unc-119(+)] III. wtfIs263 [rab-3p::AI::ChR2(H134R)::unc-54 3'UTR + rab-3p::AI::Voltron::unc-54 3'UTR + rab-3p::his-24::tagBFP::unc-54 3'UTR]. Keep plates covered to avoid unnecessary exposure to light. Pan-neuronal expression of ChR2 (H134R) along with Voltron volatage indicator and nuclear-localized tagBFP. Reporter construct contains an artificial intron (AI). Reference: Sharma AK, et al. Genetics 2024 May 11:iyae077. doi: 10.1093/genetics/iyae077 PMID: 38733622.

juSi164 [mex-5p::HIS-72::miniSOG + Cbr-unc-119(+)] III. wtfEx296 [rab-3p::AI::gur-3G::unc-54 3'UTR + rab-3p::AI::prdx-2G::SL2::his-24::tagRFP::unc-54 3'UTR + rab-3p::his-24::GCaMP6s::unc-54 3'UTR]. Pick RFP+ to maintain. Keep plates covered to avoid unnecessary exposure to light. Worms expressing a purple light-sensitive optogenetic protein system: pan-neuronal expression of GUR-3 and PRDX-2 with nuclear-localized tagRFP and GCaMP6s. Reporter construct contains an artificial intron (AI). Reference: Sharma AK, et al. Genetics 2024 May 11:iyae077. doi: 10.1093/genetics/iyae077 PMID: 38733622.

juSi164 [mex-5p::HIS-72::miniSOG + Cbr-unc-119(+)] III. wtfEx315 [5xQUAS::(delta)pes-10P::AI::gur-3G::unc-54 3'UTR + 5xQUAS::(delta)pes-10P::AI::prdx-2G::unc-54 3'UTR + rab-3p::AI::QF+hGR::unc-54 3'UTR + unc-122p::GFP]. Pick animals with GFP+ coelomocytes to maintain. Worms expressing a purple light-sensitive optogenetic protein system: pan-neuronal expression of GUR-3 and PRDX-2. Reporter construct contains an artificial intron (AI). Reference: Sharma AK, et al. Genetics 2024 May 11:iyae077. doi: 10.1093/genetics/iyae077 PMID: 38733622.

juSi164 [mex-5p::HIS-72::miniSOG + Cbr-unc-119(+)] III. wtfIs335 [5xQUAS+(delta)pes-10p::AI::eTsChR::unc-54 3'UTR + rab-3p::AI::QF+hGR::SL2::tagBFP::unc-54 3'UTR + rab-3p::his-24::tagRFP::unc-54 3'UTR + rab-3p::his-24::GCaMP6s::unc-54 3'UTR]. Keep plates covered to avoid unnecessary exposure to light. Pan-neuronal eTsChR on activation using dex treatment via QF+hGR. Worms also express calcium sensing fluorescence protein- GCaMP6s in nuclei of each neurons. Reporter construct contains an artificial intron (AI). Reference: Sharma AK, et al. Genetics 2024 May 11:iyae077. doi: 10.1093/genetics/iyae077 PMID: 38733622.

wtfIs348 [pAS3-5xQUAS::(delta)pes-10p::AI::gur-3G::unc-54 3' UTR + pAS3-5xQUAS::(delta)pes-10p::AI::prdx-2G::unc-54 3' UTR + pAS-3-rab-3p::AI::QF+GR::unc-54 3' UTR + unc-122::GFP]. Keep plates covered to avoid unnecessary exposure to light. This strain expresses a purple light-sensitive optogenetic protein system (i.e., GUR-3 and PRDX-2) in each neuron, and GFP in coelomocytes. Reference: Randi F, et al. Nature 2023 Nov;623(7986):406-414. doi: 10.1038/s41586-023-06683-4. PMID: 37914938. Sharma AK, et al. Genetics 2024 May 11:iyae077. doi: 10.1093/genetics/iyae077 PMID: 38733622.

wtfIs145 [rab-3p::his-24::GCaMP6s::unc-54 3' UTR + pBX]. wtfIs348 [pAS3-5xQUAS::(delta)pes-10p::AI::gur-3G::unc-54 3' UTR + pAS3-5xQUAS::(delta)pes-10p::AI::prdx-2G::unc-54 3' UTR + pAS3-rab-3p::AI::QF+GR::unc-54 3' UTR + unc-122::GFP]. Keep plates covered to avoid unnecessary exposure to light. This strain expresses a purple light-sensitive optogenetic protein system (i.e., GUR-3 and PRDX-2) in each neuron, and GFP in coelomocytes. GCaMP6s transgene allows for imaging whole-brain calcium activity with neuronal identification using NeuroPAL system. See description of strain OH15262 for full description of otIs669 NeuroPAL (Neuronal Polychromatic Atlas of Landmarks) transgene (Yemini E, et al. Cell. 2021 Jan 7;184(1):272-288.e11. PMID: 33378642). Derived by out-crossing parental strain OH15262 an additional six times before incorporating other transgenes. References: Yu X, et al. Elife. 2021 Jul 14;10:e66410. doi: 10.7554/eLife.66410. PMID: 34259623. Randi F, et al. Nature 2023 Nov;623(7986):406-414. doi: 10.1038/s41586-023-06683-4. PMID: 37914938. Sharma AK, et al. Genetics 2024 May 11:iyae077. doi: 10.1093/genetics/iyae077 PMID: 38733622.

juSi164 [mex-5p::HIS-72::miniSOG + Cbr-unc-119(+)] III. wtfIs458 [mec-4::Chrimson4.2::SL2::mCherry::unc-54 3' UTR + unc-122::GFP]. Maintain in the covered box to avoid unnecessary exposure to ambient light. Upon blue light treatment (460 nm LED light for 30 min at 4 Hz with 2 mW/mm2), Histone-miniSOG in the germline can induce heritable mutations. Transgenic animals express light-gated ion channel Chrimson and a fluorescent protein mCherry in mechanosensory neurons alongside GFP in coelomocytes. Reference: Liu M, et al. PLoS Biol. 2022 Jan 28;20(1):e3001524. doi: 10.1371/journal.pbio.3001524. PMID: 35089912.

wtfIs145 [rab-3p::his-24::GCaMP6s::unc-54 3' UTR + pBX]. wtfIs348 [pAS3-5xQUAS::(delta)pes-10p::AI::gur-3G::unc-54 3' UTR + pAS3-5xQUAS::(delta)pes-10p::AI::prdx-2G::unc-54 3' UTR + pAS3-rab-3p::AI::QF+GR::unc-54 3' UTR + unc-122::GFP]. Keep plates covered to avoid unnecessary exposure to light. This strain expresses a purple light-sensitive optogenetic protein system (i.e., GUR-3 and PRDX-2) in each neuron, and GFP in coelomocytes. GCaMP6s transgene allows for imaging whole-brain calcium activity with neuronal identification using NeuroPAL system. unc-31(wtf502) is a CRISPR-engineered deletion allele. See description of strain OH15262 for full description of otIs669 NeuroPAL (Neuronal Polychromatic Atlas of Landmarks) transgene (Yemini E, et al. Cell. 2021 Jan 7;184(1):272-288.e11. PMID: 33378642). Derived by out-crossing parental strain OH15262 an additional six times before incorporating other transgenes. Reference: Randi F, et al. Nature 2023 Nov;623(7986):406-414. doi: 10.1038/s41586-023-06683-4. PMID: 37914938.

juSi164 [mex-5p::HIS-72::miniSOG + Cbr-unc-119(+)] III. wtfIs483 [rab-3p::AI::lite-1G::unc-54 3'UTR + rab-3p::AI::prdx-2G::SL2::his-24::tagRFP::unc-54 3'UTR + rab-3p::his-24::GCaMP6s::unc-54 3'UTR]. Keep plates covered to avoid unnecessary exposure to light. Pan-neuronal expression of a purple/violet light-sensitive optogenetic protein system LITE-1 and PRDX-2 with nuclear-localized tagRFP and GCaMP6s. Reporter construct contains an artificial intron (AI). Reference: Sharma AK, et al. Genetics 2024 May 11:iyae077. doi: 10.1093/genetics/iyae077 PMID: 38733622.

wtfEx496 [pAS3-rig-3p::AI::gur-3G::SL2::tagRFP::unc-54 3'UTR + pAS3-rig-3p::AI::prdx-2G::SL2::tagBFP::unc-54 3'UTR]. Pick animals either BFP or RFP expression in head neurons to maintain. Keep plates covered to avoid unnecessary exposure to light. This strain expresses a purple light-sensitive optogenetic protein system (i.e., GUR-3 and PRDX-2) alongside fluorescent proteins tagBFP and tagRFP in command interneurons AVA, and nearby pharyngeal neurons I1, I4, M4, NSM using rig-3 promoter. Worms exhibit higher reversal rate on exposing to blue light (peak value ~470) compared to controls. Reference: Randi F, et al. Nature 2023 Nov;623(7986):406-414. doi: 10.1038/s41586-023-06683-4. PMID: 37914938.

wtfIs46 [mec-4p::Chrimson::SL2::mCherry::unc-54 3'UTR]. wtfEx535 [tdc-1p::AI::lgc- 47::SL2::his-24::tagRFP + unc-122p::GFP]. Pick animals with GFP+ coelomocytes to maintain. Expression of activating opsin molecule Chrimson in six gentle-touch mechanosensory neurons (ALML/R, AVM, PLML/R, PVM). Rescuing LGC-47 expression in RIML/R neurons. Reporter construct contains an artificial intron (AI). Reference: Kumar S, et al. An inhibitory acetylcholine receptor gates context dependent mechanosensory processing in C. elegans. bioRxiv 2024.03.21.586204; doi: https://doi.org/10.1101/2024.03.21.586204. PMID: 38585821.

wtfIs46 [mec-4p::Chrimson::SL2::mCherry::unc-54 3'UTR]. wtfEx543 [tdc-1p::AI::lgc-47::SL2::his-24::tagRFP + npr-9p::AI::lgc-47::SL2::tagBFP + rig-3p::AI::lgc-47::SL2::GFP + unc-122p::GFP]. Pick animals with GFP+ coelomocytes to maintain. Expression of activating opsin molecule Chrimson in six gentle-touch mechanosensory neurons (ALML/R, AVM, PLML/R, PVM). Rescuing LGC-47 expression in AIB, AVA, and RIM neurons. Reporter construct contains an artificial intron (AI). Reference: Kumar S, et al. An inhibitory acetylcholine receptor gates context dependent mechanosensory processing in C. elegans. bioRxiv 2024.03.21.586204; doi: https://doi.org/10.1101/2024.03.21.586204. PMID: 38585821.

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.

adeIs1 [mex-5::spd-1::GFP + unc-119(+)] II. The transgene has been inserted on chromosome II, using the MosSCI technique. This strains expresses the SPD-1 protein fused to GFP in the germline (both males and females) and in embryos. SPD-1 is nucleolar in interphase and labels the central spindle in mitosis and meiosis, later accumulating at the midbody. Reference: Nahaboo W, et al. Mol Biol Cell. 2015 Jun 1;26(11):2020-9. doi: 10.1091/mbc.E14-12-1577.

adeIs1 [mex-5::spd-1::GFP + unc-119(+)] II. ltIs37 [pie-1p::mCherry::his-58 + unc-119(+)] IV. Superficially wild-type. SPD-1::GFP and mCherry-tagged histones allow visualisation of chromatin with central spindle/midbody during cell divisions. Reference: Nahaboo W, et al. Mol Biol Cell. 2015 Jun 1;26(11):2020-9.

kyIs140 [str-2::GFP + lin-15(+)] I. Kinker; can't back up. srf-6 mutants express str-2::GFP in both AWC neurons (2AWC ON phenotype; wild-type phenotype is 1AWC ON): check for this phenotype to avoid reversion of srf-6(yj13). srf-6 mutants were originally identified by binding of an L1-specific antibody in later larval stages (L1-L4).

zuIs45 [nmy-2p::nmy-2::GFP + unc-119(+)] V. Temperature-sensitive maternal-effect lethal. Maintain at 15C. NMY-2::GFP is expressed in the germline and somatic gonad. Cross of JJ1473 and EU822. Unknown if unc-119(ed3) is still present or homozygous in background. NOTE: this strain was originally described as heterozygous for lin-2(e1309), but lin-2 has been lost; this strain is now homozygous wild-type for lin-2. Reference: Small LE & Dawes AT. Mol Biol Cell. 2017 Aug 1;28(16):2220-2231.

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.

Heterozygotes are Unc and segregate Uncs (heterozygotes), non-Unc mre-11 homozygotes, and dead eggs (nT1 homozygotes). mre-11 homozygotes produce about 200 fertilized eggs but only about 2-3% of these eggs survive to adulthood (this mutation cannot be maintained in a homozygous condition). Occasionally non-Unc progeny that do not demonstrate the mre-11(ok179) mutant phenotype arise when grown in large liquid cultures. mre-11 is the predicted gene ZC302.1

meIs1 [pie-1p::GFP::lacI + unc-119(+)]. meIs4 [lac-O + rol-6(su1006) + lacO] IV. Pick Rol worms to maintain. This strain throws both Rol and non-Rol worms, seemingly due to random silencing of rol-6(su1006) in the lacO array, meIs4. The strain expresses GFP::LacI in the gonad and embryos that is observed as foci (of lacO target) and nuclear haze. The expression level of GFP::LacI occasionally becomes low possibly due to random silencing of meIs1. If this happens, heat shock the strain at 25°C for 3 days, and pick a clone that exhibits bright GFP signals. Even at the highest expression level, GFP signal is too weak to detect with a fluorescent dissection microscope, and it is necessary to use a regular compound fluorescent microscope with an oil immersion 60X or 100X objective. The NA of the objective should be higher than 1.4. Reference: Bilgir C, et al. G3 (Bethesda). 2013 Mar 11. pii: g3.112.005165v1.

Produces 31% XO male self progeny; nondisjunction is correlated with a high frequency of achiasmate X chromosomes in oocyte nuclei, and a reduced frequency of X chromosome crossovers. meDf2 disrupts the function of the cis-acting X chromosome meiotic pairing center. meDf2/+ heterozygotes produce 4-6% XO progeny, so the presence of meDf2 can be followed in heterozygotes by this weak Him phenotype.

Produces 32% XO male self progeny; nondisjunction is correlated with a high frequency of achiasmate X chromosomes in oocyte nuclei, and a reduced frequency of X chromosome crossovers. meDf3 disrupts the function of the cis-acting X chromosome meiotic pairing center. meDf3/+ heterozygotes produce 4-6% XO progeny, so the presence of meDf3 can be followed in heterozygotes by this weak Him phenotype.

Produces 27% XO male self progeny; nondisjunction is correlated with a high frequency of achiasmate X chromosomes in oocyte nuclei, and a reduced frequency of X chromosome crossovers. meDf4 disrupts the function of the cis-acting X chromosome meiotic pairing center. meDf4/+ heterozygotes produce 4-6% XO progeny, so the presence of meDf4 can be followed in heterozygotes by this weak Him phenotype.

Produces 32% XO male self-progeny; nondisjunction is correlated with a high frequency of achiasmate X chromosomes in oocyte nuclei, and a reduced frequency of X chromosome crossovers. meDf5 disrupts the function of the cis-acting X chromosome meiotic pairing center. meDf5/+ heterozygotes produce 4-6% XO progeny, so the presence of meDf5 can be followed in heterozygotes by this weak Him phenotype.

Superficially wild-type. Referred to as MP3-His. Strain can be used to biotinylated carboxylases from worm extracts. AX7884 obtained by crossing parental strains PHX1772 pod-2(syb1772[pod-2::His10]) II, PHX1666 mccc-1(syb1666[mccc-1::His10]) IV, PHX1680 pyc-1(syb1680[pyc-1::His10]) V and PHX1626 pcca-1(syb1626[pcca-1::His10]) X to obtain the quadruple His10-tagged strain. The 5xGlycine(G-linker)-His10 tag is a 45 bp sequence (GGAGGAGGAGGAGGACACCATCACCATCACCACCACCACCACCAC) encoding five glycine as a linker and ten histidine residues was knocked in at the C terminus-just upstream of the termination codon-of each of the four carboxylases. Reference: Artan M, et al. J Biol Chem. 2022 Aug 3:102343. doi: 10.1016/j.jbc.2022.102343. Epub ahead of print. PMID: 35933017.

acEx185 [hsp-16.41p::par-5::VN173 + hsp-16.41p::his-1::VC155 + unc-122p::RFP]. Pick RFP+ animals to maintain. BiFC reporter strain for PAR-5 and histone (H4) proteins interaction. To detect the protein-protein physical interactions, heat shock the animals for 3 hours at 33°C, allow them to recover for 12 hours at 20°C, and observe fluorescent-complementation signals under a high-magnification fluorescence microscope. Reference: Hong C, et al. PLoS Biol. 2021 Mar 31;19(3):e3001169. doi: 10.1371/journal.pbio.3001169. PMID: 33788830.

eEx25 [C13G4(cosmid) + XDM23(phage)]. Animals with eEx25 are WT. Pick wild-type to maintain. Animals which have lost eEx25 are Twitchers and Sterile (occasionally produce young). This cosmid lacks the 3' end of the unc-22 gene while XDM23 lacks the 5' end of unc-22, but following injection an extrachromosomal array was formed that included at least one functional unc-22 gene.

Homozygous male/hermaphrodite line. Males are fertile. Hermaphrodites are sterile, but slightly leaky producing a few progeny (at 25C - ts not tested). In pronase, spermatids from males activate to form many long spikes, terminating at this stage. A very few (1-3 per worm) activate to form normal-looking, motile spermatozoons.

spe-6(hc163) suppresses the self-sterility of spe-29 in this strain. Self-sterile at 25C.

Chemotaxis deficient. Transgenes are silenced in this background. Reference: Reich DP, et al. Genes Dev. 2018 Feb 1;32(3-4):271-282. NOTE: In the referenced publication, irregularities were noted in the adr-1(gv6);adr-2(gv42) null strain, which were ascribed to background mutationsint hat strain. This strain -- adr-1(uu49);adr-2(uu28) -- was generated Crispr/Cas9 targeted mutation and phenotypes are more consistent with another null strain, adr-1(tm668);adr-2(ok735).

sIs11264 [rCesK07A3.1::GFP + pCeh361]. Inserted array seems to be unstable or prone to silencing. Pick non-Dpy GFP+ animals to maintain array. 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). [NOTE: Though this strain is reported as carrying an integrated array, this strain segregates both GFP+ non-Dpy and GFP- Dpy.]

sDf19 has a dominant twitcher phenotype, and is homozygous lethal-usually arresting as embryos, but occasionally will hatch. Heterozygotes are twitchers and segregate twitchers, Vulvaless and dead eggs (or lethal early larvae). This strain was generated by the Genetic Toolkit project, which should be acknowledged in any publications resulting from its use: The Genetic Toolkit is funded by the NIH National Center for Research Resources (NCRR) (USA) to Ann M. Rose, David L. Baillie, and Donald L. Riddle. Report all experimental results to David Baillie.