Search Strains

Eat mutant. Stuffs corpus and isthmus. Abnormality in m6 and m7 contraction timing. Displays clumping behavior; isolated in an RC301 background, so it's likely to have the RC301 bor-1 mutation.

Bah (biofilm absent on head - resistant to attachment of Yersinia sp. biofilms). Cld: constitutive larval display of epitope recognized by monoclonal antibody M37.

olaEx5331 [rab-3p::HYlight-RA + elt-7p::mCherry]. Pick mCherry+ animals to maintain. Pan-neuronal expression of HYlight-RA, a reduced affinity version of the FBP biosensor that does not respond to changes in concentration of the FBP metabolite during hypoxia in vivo. Can be used as a negative control for HYlight sensor in strain DCR8881. Reference: Wolfe AD, et al. Proc Natl Acad Sci U S A. 2024 Jan 16;121(3):e2314699121. doi: 10.1073/pnas.2314699121. PMID: 38198527.

uonEx1 [unc-54::alpha-synuclein::CFP + unc-54::alpha-synuclein::YFP(Venus)]. Pick fluorescent animals to maintain. No additional transformation marker was included in the array. uonEx1 also known as SC+SV in reference publications. Reduced lifespan (25-35% lower) and reduced pharyngeal pumping rate compared to N2. Novel transgenic strain for monitoring the influence of genetic and/or environmental factors on the extent of alpha-synuclein aggregation using FRET signals. Because the two fusion proteins are separate, FRET is only possible when synuclein aggregation brings a CFP tag very close to a YFP tag within an aggregate. We suggest using this strain in conjunction with the positive control (high FRET) strain DDP2 or with strain NL5901 which shows opposite changes in FRET. References: Nagarajan A, et al. CNS Neurol Disord Drug Targets. 2015 Aug 21. Bodhicharla R, et al. CNS Neurol Disord Drug Targets. 2012 Dec;11(8):965-75.

uonEx2 [unc-54::CFP::YFP(Venus)]. No additional transformation marker was included in the array. uonEx2 also known as CV in reference publications. Lifespan and pharyngeal pumping rates are similar to N2. This is a high-FRET positive control strain for use in conjunction with DDP1. Because the CFP and YFP protein sequences are covalently fused together (and show little evidence of cleavage), FRET should be high and largely invariant since both fluorescent moieties are always in close proximity. References: Nagarajan A, et al. CNS Neurol Disord Drug Targets. 2015 Aug 21. Bodhicharla R, et al. CNS Neurol Disord Drug Targets. 2012 Dec;11(8):965-75.

0012. Male/Female strain. Isolated by M. Velasquez in the spring of 1989 from a June beetle larva (Scarabaeidae) near Quetzaltenango, Guatemala. WBG 12(5) 14. Formerly known as Rhabditoides regina.

WT strain. Oscheius sp. See WBG 12(5) 14. Male/Female strain. Collected by a Belgian expedition to the Galapagos archipelago. From Gaetan Borgonie, Gent University, Belgium.

Formerly known as Rhabditis axei. Isolated by Elie S. Dolgin in 2006 from agricultural soil at Naivasha, Kenya (0º50'S 36º22'E); isolate number NV-SH-2. First frozen by Fitch laboratory 9/5/2006. Gonochoristic. Grows well on NGM plates and OP50 at 20-25C. Freezes easily with C. elegans protocols with 70% viability. DF5097 was verified to be R. axei by intercrossing it with DF5006 and observing that their resulting F1 and F2 hybrid offspring were healthy and fertile. At 33C, DF5097 can live up to three days, although they developmentally arrest as late larvae or young adults, fail to produce offspring, and eventually die; in contrast, DF5006 either dies or arrests as first-stage (L1) larvae. Returning DF5097 to 20C from 33C rescues them from developmental arrest and death, and allows them to become fertile adults; in contrast, when DF5006 L1 larvae are returned to 20C, they sometimes grow to later stage larvae, but never grow to fertile adults. Thus, DF5097 shows clearly superior resistance to heat over DF5006; it shows somewhat greater fertility than DF5098 (which also withstands 33C) after being returned to 20C.

Formerly known as Rhabditis axei. Isolated by Elie S. Dolgin in 2006 from fungus at Limuru, Kenya (1º05'S 36º39'E); isolate number LI-OM-B-1&4. First frozen by Fitch laboratory 9/5/2006. Gonochoristic. Grows well on NGM plates and OP50 at 20-25C. Freezes easily with C. elegans protocols with >20% viability. DF5098 was verified to be R. axei by intercrossing it with DF5006 and observing that their resulting F1 and F2 hybrid offspring were healthy and fertile. At 33C, DF5098 can live for up to three days, although they developmentally arrest as late larvae or young adults, fail to produce offspring, and eventually die; in contrast, DF5006 either dies or arrests as first-stage (L1) larvae. Returning DF5098 to 20C from 33C rescues them from developmental arrest and death, and allows them to become fertile adults; in contrast, when DF5006 L1 larvae are returned to 20C, they sometimes grow to later larvae, but never grow to fertile adults. Thus, DF5098 shows clearly superior resistance to heat over DF5006; it shows somewhat lower fertility than DF5097 (which also withstands 33C) after being returned to 20C.

uwaSi5 [myo-3p::CERULEAN-VENUS::lgg-1 + unc-119(+)] II. MosSCI insertion into ttTi5605 II. lgg-1 tagged with oxCerulean-oxVenus double fluorescent protein (dFP) for monitoring autophagy in body wall muscle. Reference: Chapin H, et al. Aging (Albany NY). 2015 Jun;7(6):419-34.

uwaEx5 [myo-3p::CERULEAN-VENUS::lgg-1 + unc-119(+)]. Pick non-Unc to maintain. lgg-1 tagged with oxCerulean-oxVenus double fluorescent protein (dFP) for monitoring autophagy in body wall muscle. Reference: Chapin H, et al. Aging (Albany NY). 2015 Jun;7(6):419-34.

krIs14 [hsp-16.48p::MosTransposase + lin-15(+) + unc-122p::GFP] V. Recessive Unc. unc-5(lib1) is a CRISPR/Cas9 engineered mutant carrying the Intersister/Intrachromatid Repair Assay (ICR Assay) cassette inserted into the endogenous unc-5 locus. Briefly, ICR assay cassette includes two tandem GFP cassettes: the upstream using the myo-3 (body wall) promoter with a truncated GFP coding sequence, and the down-stream using the myo-2 (pharynx) promoter with GFP coding sequence interrupted by a Mos1 Drosophila transposon. Excision of Mos1 yields a single DSB, which if repaired by intersister or intrachromatid recombination, then will yield GFP+ progeny. The krIs14 insertion carrying heat-shock inducible Mos1 transposase is marked with coelomocyte GFP expression. Reference: Toraason E, et al. Current Biology 2021. https://doi.org/10.1016/j.cub.2021.03.008

Suppressed Unc-52. This strain was isolated after EMS mutagenesis of CB998 and subjected to whole-genome sequencing (Flibotte et al., Genetics 185: 431 - 441 (2010). In addition to the unc-52 and sup-38 mutations, it is homozygous for 300 other mutations determined from sequence data. All mutations are annotated in WormBase. The e3003 and e998 mutations were present in the original CB998 strain. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the International C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00036200

WT in appearance and movement. Some slight body wall muscle disorganization and gonad disorganization. Slightly reduced brood size. Only suppresses the unc-52(e1421) allele.

WT in appearance and movement. Some slight body wall muscle disorganization. More severe gonad disorganization, and greatly reduced brood size. Suppresses the e444, e998, 669, e1012, e1421 and st196 alleles of unc-52.

WT in appearance and movement. Some slight body wall muscle disorganization. More severe gonad disorganization, and greatly reduced brood size. Suppresses the e444, e998, 669, e1012, e1421 and st196 alleles of unc-52.

Body wall muscle is disorganized when viewed using polarized light. Hermaphrodites move well and are indistinguishable from WT under dissecting microscope.

WT movement and body wall muscle.

raEx16 [unc-112::GFP + rol-6(su1006)]. Rollers. Pick Rollers to maintain. raEx16 produces a fully functional GFP-tagged unc-112 protein that localizes to the dense bodies and M-line in muscle cells, and rescues the lethal phenotype of unc-112(st581) homozygous animals. Reference: Rogalski TM, et al. J Cell Biol. 2000 Jul 10;150(1):253-64.

raEx16 [unc-112::GFP + rol-6(su1006)]. Rollers. Pick Rollers to maintain. raEx16 produces a fully functional GFP-tagged unc-112 protein that localizes to the dense bodies and M-line in muscle cells, and will rescue the lethal phenotype of unc-112(st581) homozygous animals. Reference: Rogalski TM, et al. J Cell Biol. 2000 Jul 10;150(1):253-64.

raEx151 [cpna-1::YFP + rol-6(su1006)]. GFP inserted into WRM0617dC02 fosmid at 3' end of cpna-1 gene. WRM0617dC02 fosmid with YFP inserted into the F31D5.3/cpna-1 gene in frame at its 3' end by recombineering. YFP expression in body wall muscle cells at dense bodies and M-lines; weak expression in the pharynx. Pick Rollers to maintain. Reference: Warner A, et al. Mol Biol Cell. 2013 Mar;24(5):601-16.

raIs8 [unc-112::GFP + rol-6(su1006)]. Rollers. raIs8 produces a fully functional GFP-tagged UNC-112 protein that localizes to the dense bodies and M-line in muscle cells. Derived by integrating raEx16 in DM7016.

Homozygotes for this mutation express a dumpy phenotype, while heterozygotes are roller and slightly shorter-than-wildtype in length. This Ctr-dpy-10 mutation will serve as a suitable syntenic marker for chromosome II mutations in C. tropicalis that does not impact the viability or fecundity of the organism. Generated in a C. tropicalis JU1373 background. Hermaphrodite. Culture at 20°C or above.

bmdSi282 [^loxN^rgef-1p::mKate2-STOP-STOP-VHH4GFP::DAMc1]. Wild-type growth and movement. NanoDam toolkit will allows identification of direct genomic targets of TFs as well as chromatin modifiers. In this system, Dam methylase is fused with a binding reagent, an anti-GFP nanobody (vhhGFP4). Thus, genome-wide profiling can be achieved by combining cell type-specific Dam::vhhGFP4 fusion constructs with GFP knock-in alleles.

bmdSi245 [^SEC^lin-29p::mKate2-STOP-STOP-DAMc1::VHH4GFP] I. Relatively slow growth compared to N2 animals. NanoDam toolkit will allows identification of direct genomic targets of TFs as well as chromatin modifiers. In this system, Dam methylase is fused with a binding reagent, an anti-GFP nanobody (vhhGFP4). Thus, genome-wide profiling can be achieved by combining cell type-specific Dam::vhhGFP4 fusion constructs with GFP knock-in alleles.

bmdSi297 [loxN::rpl-28p::FRT3::STOP::FRT3::TIR1(F79G)::T2A::DHB::2xmKate2]; inserted into safe harbor site ttTi5605 in Chr II. Ubiquitous rpl-28 promoter driving expression of FRT3::STOP::FRT3::TIR1(F79G)::DHB construct dependent upon tissue-specific FLPase. High levels of TIR1(F79G) can be expressed in specific tissue or cell types via FLPase activity, allowing spatiotemporally-targeted degradation of AID-tagged proteins. Reference: Xiao Y, et al. An expandable FLP-ON::TIR1 system for precise spatiotemporal protein degradation in C. elegans. bioRxiv 2022.10.14.512315; doi: https://doi.org/10.1101/2022.10.14.512315

bmdSi327 [loxN::ckb-3p::FLP::P2A::H2B::2xmTurq2]; inserted into safe harbor site ttTi4348 in Chr I. Uterine-specific expression of FLPase in Z1/Z4 and their descendants with blue fluorescent histone reporter for visualization. Reference: Xiao Y, et al. An expandable FLP-ON::TIR1 system for precise spatiotemporal protein degradation in C. elegans. bioRxiv 2022.10.14.512315; doi: https://doi.org/10.1101/2022.10.14.512315

bmdSi346 [loxN::lin-31p::FLP]; inserted into safe harbor site ttTi4348 in Chr I. bmdSi297 [loxN::rpl-28p::FRT3::STOP::FRT3::TIR1(F79G)::T2A::DHB::2xmKate2]; inserted into safe harbor site ttTi5605 in Chr II. FLP-ON::TIR1 system for AID-tagged protein degradation in VPCs. High levels of TIR1(F79G) expression in vulval precursor cells by lin-31p::FLP with co-expression of CDK activity sensor. bmdSi297 contains the ubiquitous rpl-28 promoter driving expression of FRT3::STOP::FRT3::TIR1(F79G)::DHB construct dependent upon tissue-specific FLPase. High levels of TIR1(F79G) can be expressed in specific tissue or cell types via FLPase activity, allowing spatiotemporally-targeted degradation of AID-tagged proteins. Reference: Xiao Y, et al. An expandable FLP-ON::TIR1 system for precise spatiotemporal protein degradation in C. elegans. bioRxiv 2022.10.14.512315; doi: https://doi.org/10.1101/2022.10.14.512315

bmdSi348 [loxN::rgef-1p::FLP::P2A::H2B::2xmTurq2]; inserted into safe harbor site ttTi4348 in Chr I. Pan-neuronal expression of FLPase with blue fluorescent histone reporter for visualization. Reference: Xiao Y, et al. An expandable FLP-ON::TIR1 system for precise spatiotemporal protein degradation in C. elegans. bioRxiv 2022.10.14.512315; doi: https://doi.org/10.1101/2022.10.14.512315

bmdSi350 [loxN::wrt-2p::FLP::P2A::H2B::2xmTurq2]; inserted into safe harbor site ttTi4348 in Chr I. Hypodermal (seam cell) expression of FLPase with blue fluorescent histone reporter for visualization. Reference: Xiao Y, et al. An expandable FLP-ON::TIR1 system for precise spatiotemporal protein degradation in C. elegans. bioRxiv 2022.10.14.512315; doi: https://doi.org/10.1101/2022.10.14.512315

bmdSi348 [loxN::rgef-1p::FLP::P2A::H2B::2xmTurq2]; inserted into safe harbor site ttTi4348 in Chr I. bmdSi362 [loxN::rpl-28p::FRT3-LCK::mNG-STOP::FRT3::TIR1(F79G)::2A::PH::2xmKate2]; inserted into safe harbor site ttTi5605 in Chr II. FLP-ON::TIR1 system for AID-tagged protein degradation in neurons. High levels of TIR1(F79G) expression in neurons by rgef-1p::FLP with co-expression of membrane markers. bmdSi362 contains the ubiquitous rpl-28 promoter driving expression of FRT3-LCK::mNG-STOP::FRT3::TIR1(F79G)::2A::PH::2xmKate2 construct dependent upon tissue-specific FLPase. High levels of TIR1(F79G) can be expressed in specific tissue or cell types via FLPase activity, allowing spatiotemporally-targeted degradation of AID-tagged proteins. Reference: Xiao Y, et al. An expandable FLP-ON::TIR1 system for precise spatiotemporal protein degradation in C. elegans. bioRxiv 2022.10.14.512315; doi: https://doi.org/10.1101/2022.10.14.512315

bmdSi363 [^SEC^ser-2p::mKate2-STOP-STOP-DAMc1::VHH4GFP] I. Pick Rollers to maintain. Wild-type growth. NanoDam toolkit will allows identification of direct genomic targets of TFs as well as chromatin modifiers. In this system, Dam methylase is fused with a binding reagent, an anti-GFP nanobody (vhhGFP4). Thus, genome-wide profiling can be achieved by combining cell type-specific Dam::vhhGFP4 fusion constructs with GFP knock-in alleles.

bmdSi245 [^SEC^lin-29p::mKate2-STOP-STOP-DAMc1::VHH4GFP] I. Pick Rollers to maintain. Wild-type growth. NanoDam toolkit will allows identification of direct genomic targets of TFs as well as chromatin modifiers. In this system, Dam methylase is fused with a binding reagent, an anti-GFP nanobody (vhhGFP4). Thus, genome-wide profiling can be achieved by combining cell type-specific Dam::vhhGFP4 fusion constructs with GFP knock-in alleles.

bmdSi245 [^SEC^lin-29p::mKate2-STOP-STOP-DAMc1::VHH4GFP] I. Wild-type growth and movement. NanoDam toolkit will allows identification of direct genomic targets of TFs as well as chromatin modifiers. In this system, Dam methylase is fused with a binding reagent, an anti-GFP nanobody (vhhGFP4). Thus, genome-wide profiling can be achieved by combining cell type-specific Dam::vhhGFP4 fusion constructs with GFP knock-in alleles.

bmdSi245 [^SEC^lin-29p::mKate2-STOP-STOP-DAMc1::VHH4GFP] I. Wild-type growth and movement. NanoDam toolkit will allows identification of direct genomic targets of TFs as well as chromatin modifiers. In this system, Dam methylase is fused with a binding reagent, an anti-GFP nanobody (vhhGFP4). Thus, genome-wide profiling can be achieved by combining cell type-specific Dam::vhhGFP4 fusion constructs with GFP knock-in alleles.

bmdSi245 [^SEC^lin-29p::mKate2-STOP-STOP-DAMc1::VHH4GFP] I. Wild-type growth and movement. NanoDam toolkit will allows identification of direct genomic targets of TFs as well as chromatin modifiers. In this system, Dam methylase is fused with a binding reagent, an anti-GFP nanobody (vhhGFP4). Thus, genome-wide profiling can be achieved by combining cell type-specific Dam::vhhGFP4 fusion constructs with GFP knock-in alleles.

Paralyzed coiler. Slightly Egl. Slightly short. About half do not survive to adulthood-arrest usually in L1. See also WBPaper00001868.

Dauer defective. Egl-60% form bags of worms. Unc-sluggish, poor backing. Resistant to both imipramine and serotonin. Slightly Dpy.

This strain forms 20% dauers at 15C. At 25C there occurs about 25% embryonic arrest and about 75% L1 arrest. The e979 mutation results in an amino acid substitution, C146Y, in the ligand-binding domain of the DAF-2 receptor. [CGC received new stock of DR1942 September 2002. Previous stock was probably m41 and not e979.] [June 2004: Patrice Albert has confirmed the mutation in this stock: Repeat of sequencing for CGC collection strain DR1942 [daf-2(e979)] is complete. The strain does carry a C146Y mutation (coding strand TGC to TAC) [Mutation position is at 143, not 146, based on the amino acid sequence shown in Wormbase for daf-2. It's the C in partial sequence EKRCGPI of Exon 5.].]

Dark-bodied, unmarked variant of mIn19mC6) with small broods. Presumably balances let-552 to rol-1 (hermaphrodite stock obtained from outcrossing these males to dpy-10 unc-4 was shown to balance this interval). Isolated from DR1982 as a stock that no longer segregated Dpy-10 animals. Not clear whether this strain is the result of chromosome rearrangement in DR1982, or if DR1982 stock was a mixture of mIn1(+)/mIn[dpy-10] and mIn1(+) homozygotes.

Severe homozygous Unc. Heterozygotes are slow moving. Weakly semi-dominant. Body muscle abnormal.

Both unc-13 and daf-7 are suppressed by sup-7. sup-7 should be grown between 22.5C and 24C.

Temperature sensitive. Sensitive to alpha-amanitin. Heterozygotes are semi-Dpy and segregate semi-Dpy, Vul, dead embryos, and Dpy. Dpy progeny arrest in mid-larval stages at >20C. Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.

Dpy. Sensitive to alpha-amanitin. Temperature sensitive, maintain at 15C. Fertile at 20C. Emb at restricitve temperature (25C). Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.

Dpy. Sensitive to alpha-amanitin. Temperature sensitive, maintain at 15C. Fertile at 20C. Emb at restrictive temperature (25C). Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.

Sensitive to alpha-amanitin. Heterozygotes are semi-Dpy and segregate semi-Dpy, Vul, dead embryos, and Dpy. Dpy progeny arrest in L1 stage at >20C. Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.

Sensitive to alpha-amanitin. Heterozygotes are semi-Dpy and segregate semi-Dpy, Vul, dead embryos, and Dpy. Dpy progeny arrest in L1 stage at >20C. Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.

Sensitive to alpha-amanitin. Heterozygotes are semi-Dpy and segregate semi-Dpy, Vul, dead embryos, and Dpy. Dpy progeny arrest in L1 stage at >20C. Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.

Temperature sensitive. Sensitive to alpha-amanitin. Heterozygotes are semi-Dpy and segregate semi-Dpy, Vul, dead embryos, and Dpy. Dpy progeny are maternal effect Emb at 20C and arrest in mid-larval stages at 25C. Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.

Dpy. Sensitive to alpha-amanitin. [NOTE: formerly described as ama-1(m118m370m414), it has been determined that m414 was reversion of m367 back to wild-type sequence.] Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.