Search Strains

rmIs290 [unc-54p::Hsa-sod-1 (127X)::YFP]. Array encodes mutated form of human SOD-1. YFP expression in body wall muscle. Array is prone to silencing; maintain by picking worms displaying typical aggregation patterns. Reference: Gidalevitz T, et al., PLoS Genet. 2009 Mar;5(3):e1000399.

sosIs5 [rab-3p::Cerulean-Venus::lgg-1 + unc-119(+)]. Maintain at 15 degrees. Temperature-sensitive embryonic lethal. 100% dead embryos at 25 degrees. Small, posteriorly displaced first mitotic spindle with defective chomosome segregation and cytokinesis.

olaEx3013 [ttx-3p:mCherry::eGFP::lgg-1 + unc-122p::mCherry]. Pick animals with mCherry+ coelomocytes to maintain array. Unc. Tandem tags on LGG-1 label immature autophagosomes with both GFP and mCherry, but because GFP is preferentially quenched in an acidic environment, mature structures lose their GFP signal and display solely mCherry signal. Reference: Hill SE & Colon-Ramos D. 2018 bioRxiv 287144; doi: https://doi.org/10.1101/287144

olaEx3013 [ttx-3p:mCherry::eGFP::lgg-1 + unc-122p::mCherry]. Pick animals with mCherry+ coelomocytes to maintain array. Paralyzed Unc. Tandem tags on LGG-1 label immature autophagosomes with both GFP and mCherry, but because GFP is preferentially quenched in an acidic environment, mature structures lose their GFP signal and display solely mCherry signal. Reference: Hill SE & Colon-Ramos D. 2018 bioRxiv 287144; doi: https://doi.org/10.1101/287144

olaEx3013 [ttx-3p::mCherry::eGFP::lgg-1 + unc-122p::mCherry]. Pick animals with mCherry+ coelomocytes to maintain array. Unc. Slow moving. Tandem tags on LGG-1 label immature autophagosomes with both GFP and mCherry, but because GFP is preferentially quenched in an acidic environment, mature structures lose their GFP signal and display solely mCherry signal. Reference: Hill SE & Colon-Ramos D. 2018 bioRxiv 287144; doi: https://doi.org/10.1101/287144

jamSi2 [mex-5p::rde-1(+)] II. mex-5p::rde-1(+) inserted into ttTi5605 on LG II. Tissue-specific RNAi rescue allows silencing in germline and intestine. Reference: Marre JA, et al. Proc Natl Acad Sci USA. 2016.

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.

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.

pkIs2386 [unc-54p::alphasynuclein::YFP + unc-119(+)]. YFP expression in the muscles. Derived by crossing parental strains NL5901 and MAH23 to produce a Parkinson's model with germline-only RNAi. unc-119 might still be present in the background, but likely lost during crossing. Reference: Snow S, et al. (2024). Neuronal CBP-1 is required for enhanced body muscle proteostasis in response to reduced translation downstream of mTOR. Frontiers in Bioscience-Landmark.

pkIs2386 [unc-54p::alphasynuclein::YFP + unc-119(+)]. neIs9 [myo-3::HA::rde-1 + rol-6(su1006)] X. Rollers. YFP expression in the muscles. Derived by crossing parental strains NL5901 and WM118 to produce a Parkinson's model with muscle-only RNAi. Reference: Snow S, et al. (2024). Neuronal CBP-1 is required for enhanced body muscle proteostasis in response to reduced translation downstream of mTOR. Frontiers in Bioscience-Landmark.

eif-2alpha(rog3) is a (S49A) substitution allele (I:2073439..2073448; WS220) removing P site and PAM site. eif-2alpha (Y37E3.10) encodes the alpha subunit of eukaryotic translation initiation factor 2 (eIF2). Reference: Rollins J, et al. Loss of eif-2alpha phosphorylation on S49 (mammalian S51) associated with the integrated stress response hastens development in C. elegans. MicroPubl Biol. 2017;2017:10.17912/W2BM1S. doi: 10.17912/W2BM1S. Erratum in: MicroPubl Biol. 2020 Feb 27;2020: PMID: 32292896.

pkIs2386 [unc-54p::alphasynuclein::YFP + unc-119(+)]. uIs57 [unc-119p::YFP + unc-119p::sid-1 + mec-6p::mec-6]. YFP expression in the muscles. Parkinson's model with hypersensitive neuronal RNAi. Reference: Snow S, et al. (2024). Neuronal CBP-1 is required for enhanced body muscle proteostasis in response to reduced translation downstream of mTOR. Frontiers in Bioscience-Landmark.

GFP tag inserted into endogenous spe-36 (F40F11.4) locus. SPE-36::GFP expression in spermatids and spermatozoa. Reference: Krauchunas AR, et al. Curr Biol. 2023 Jul 24;33(14):3056-3064.e5. doi: 10.1016/j.cub.2023.06.051. PMID: 37453426.

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).

[D943G] substitution mutation in conserved residue within RNAse III domain. Balancer marked with myo-2p::Venus. Pick fertile wild-type (non-Dpy) Venus+ to maintain. drsh-1(viz43) homozygous animals display heterochronic phenotypes beginning at L3/L4 molt and typically burst at the vulva in L4. Heterozygotes are wild-type with pharyngeal Venus fluorescence, and segregate Venus+ heterozygotes, non-Venus viz-43 homozygotes, and Dpy Venus+ tmC18 homozygotes. Reference: Barish S, et al. Human Mol Genet. 2022 Aug 25;31(17):2934-2950. doi: 10.1093/hmg/ddac085. PMID: 35405010.

The endogenous promoter of ZK813.1 (1046 bp) was replaced with the fln-1 promoter (947 bp) to limit the expression of ZK813.1 to the spermatheca and allow analysis of RNA transfer from soma to oocytes. Reference: Trimmer KA, et al. Cell Rep. 2023 May 23;42(6):112544. doi: 10.1016/j.celrep.2023.112544. PMID: 37227820. .

Heterozygotes are Unc and segregate Uncs (heterozygotes), non-Unc spo-11 homozygotes, and dead eggs (nT1 homozygotes). spo-11 homozygotes produce an average of ~200 fertilized eggs but only about 0.1 progeny survive to adulthood. When mated to N2 males, spo-11 homozygotes will produce at least 5-10 cross progeny.

Can be maintained by chunking or setting up male/hermaphrodite crosses. Dpy.

Balanced heterozygotes are GFP+ Unc and segregate GFP+ Unc (heterozygotes), non-GFP non-Unc spo-11(me44) homozygotes, and dead eggs (nT1 homozygotes). spo-11(me44) homozygotes are viable and produce more than 90% dead eggs (a large fraction of the survivors are males — strong Him phenotype); cytologically they lack chiasmata in diakinesis-stage oocytes and lack RAD-51 foci. Maintain by picking Unc.

Sperm activation in virgin males. Poor sperm transfer.

Sperm activation in virgin males. Very poor sperm transfer.

aaim-1 mutants are resistant to infection by N. parisii, but sensitive to infection by Pseudomonas aeruginosa PA14. No defects in development or lifespan were observed. Reference: Tamim El Jarkass H, et al. eLife. 2022;11:e72458. PMID: 34994689.

dbEx724 [flp-6p::tax-2(cDNA)::SL2::GFP + lin-15(+)]. Pick non-Muv to maintain. Array rescues tax-2 in ASE using an ASE-specific flp-6p fragment. Reference: Bretscher AJ, et al. Neuron. 2011 Mar 24;69(6):1099-113.

acIs156 [vit-2p::vit-2(G839R)::GFP + myo-2p::mCherry]. In contrast to VIT-2::GFP, VIT-2(G839R)::GFP remains in the intestine and is not transported to embryos. mCherry expression in pharynx. Reference: Singh J & Aballay A. MBio. 2017 May 30;8(3). pii: e00778-17. doi: 10.1128/mBio.00778-17.

F49F1.6. mul-1(syb1027) [IV:4121342..4123166] is a CRISPR/Cas9-engineered ?1,650-bp deletion mutant of isoforms A and B (565 bp and 952 bp deleted, with generated termination codon), leaving a predicted truncated protein of 46 amino acids. Derived by out-crossing parental strain PHX1027 (Suny Biotech) with N2 six times. Reference: Hoffman CL, et al. mBio. 2020 Mar 3;11(2):e00060-20. PMID: 32127446

acEx162 [mul-1p::mul-1::SL2::GFP + myo-2p::mCherry]. Pick mCherry+ to maintain. GFP expression in the intestine. acEx162 transgene rescues mul-1(lf). mul-1(syb1027) [IV:4121342..4123166] is a CRISPR/Cas9 ?1,650-bp deletion mutant of isoforms A and B (565?bp and 952?bp deleted, with generated termination codon), leaving a predicted truncated protein of 46 amino acids. Reference: Hoffman CL, et al. mBio. 2020 Mar 3;11(2):e00060-20. PMID: 32127446

acEx174 [ges-1p::mrp-1::GFP + unc-122p::RFP]. Pick GFP+ or RFP+ animals to maintain. Translational fusion of MRP-1::GFP driven by intestine-specific ges-1 promoter. Reference: Lalsiamthara J & Aballay A. Commun Biol. 2022 May 5;5(1):422. doi: 10.1038/s42003-022-03381-1. PMID: 35513700.

acEx177 [ges-1p::mrp-1::GFP + vha-6::DsRed + unc-122p::RFP]. Pick RFP+ to maintain. Translationally fused MRP-1::GFP expressed under intestinal specific ges-1 promoter, MRP-1::GFP proteins localize at the basolateral membrane of the intestine. Translationally fused VHA-6::RFP expressed under its own promoter, VHA-6::RFP proteins localize at the lumen or luminal membrane of the intestine. For better results, observe fluorescence signals on the L4 stage animals and also under higher magnification microscopy. Reference: Lalsiamthara J & Aballay A. Commun Biol. 2022 May 5;5(1):422. doi: 10.1038/s42003-022-03381-1. PMID: 35513700.

acEx190 [tax-2p::CZ::ced-3(p17)::unc-54 3’UTR + lim-6p::ced-3(p15)::NZ::unc-54 3’UTR + myo-3p::mCherry]. Pick mCherry+ to maintain.  ASG is ablated in animals carrying the array by employing a two-component system reconstituted caspase (recCaspase) using the tax-2 and lim-6 promoters.  Strain viable at all temperatures.  Reference Otarigho, B. and Aballay, A., 202. Cell reports, 35(8). PMID: 34038721.

acEx191 [odr-2p::CZ::ced-3(p17)::unc-54 3’UTR+ unc-53p::ced-3(p15)::NZ::unc-54 3’UTR + rol-6(su1006)]. Pick Rollers to maintain.  PVP is ablated in animals carrying the array by employing a two-component system reconstituted caspase (recCaspase) using the odr-2 and unc-53 promoters.  Strain viable at all temperatures.  Reference Otarigho, B. and Aballay, A., 202. Cell reports, 35(8). PMID: 34038721.

Male/hermaphrodite line. Maintain at 15C to insure maintenance of male/hermaphrodite line.

Non-conditional hermaphrodite sterile. Males fertile. Self-progeny produced after mating.

Self-sterile hermaphrodites; fertile males. Mated hermaphrodites produce self and outcross progeny. Self progeny are 33% males.

Heterozygotes are WT and segregate WT, Sterile Dpys (Dpy is temperature sensitive), and dead eggs. ale-1 is a recessive embryonic lethal.

Unc. Temperature sensitive, maintain at 16C. Average progeny: at 16C= 7 +/- 5; at 25C= 0.1 +/- .1.

Dpy. Temperature sensitive, maintain at 16C. Average progeny at 16C= 7 +/- 5. At 25C, average progeny = 0.1 =/- .1.

Animals with the Duplication are WT. Animals without the Duplication are Unc and Sterile.

Animals with the Duplications are WT. Animals which have lost the Duplication are Sterile and have an abnormal tail.

Self-sterile at 25C. Maintain at 15C.

Unc. Animals which have lost the duplications are Sterile and Unc.

Maintain at 15C.

Heterozygotes are WT and segregate WT heterozygotes, Sterile Unc (fer-1 unc-29 homozygotes) and L1 lethals (sDf6 homozygotes). hc80 is a nonconditional sterile. hc80 sperm have short pseudopods.

Heterozygotes are WT and segregate WT heterozygotes, Sterile spe-4 homozygotes, and dead eggs (sDf5 homozygotes).

Animals carrying the duplication WT. Animals which have lost the Dup are sterile. Maintain by picking fertile animals and checking for segregation of fertile and sterile progeny.

Temperature sensitive, maintain at 15C. Average progeny at 16C is 7 +/- 5. Average progeny at 25C is 0.1 +/- .1.

Animals with the Duplications are WT. Animals which have lost the Duplication are Sterile.

Temperature sensitive, maintain at 16C. Segregates males. Average progeny at 16C is 7 +/- 5. Average progeny at 25C is 0.1 +/- .1.

Maintain by mating. Hermaphrodites produce nonfunctional sperm and are fertilization defective. Self-fertility is <1% at 16C or 25C. Males are fertile.