Search Strains

Dpy. Sensitive to alpha-amanitin. Reference: Bowman EA, Riddle DR, Kelly WG. G3 November 2011 1:411-416.

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

Superficially wild-type. ups39 is a CRISPR-engineered deletion within daam-1. daam-1(ups39) encodes an in-frame stop codon near the start of its FH2-coding sequence, and a 1-nt frame shift due to the LoxP site, and is thus predicted encode a non-functional formin. Reference: Sundaramurthy S, et al. Cytoskeleton (Hoboken). 2020 Oct;77(10):422-441. doi: 10.1002/cm.21639. PMID: 33103378.

ezIs2 [fkh-6::GFP + unc-119(+)]. ezIs2 was integrated with pPD95.69 (fkh-6 promoter and unc-54 3') and pMM106b (unc-119(+)). Worms are 100% non-Unc (the unc-119 background has been crossed out). GFP expression in adult hermaphrodite spermatheca is bright and weak staining is also observed in the proximal sheath cells. Weak GFP staining is also observed in Z1/Z4 cells in both sexes.

eeeIs1 [unc-54p::Htt513(Q15)::YFP::unc-45 3'UTR]. YFP expression in body wall muscle cells. YFP is fused to a fragment of mutant human Huntingtin protein. Reference: Lee AL. et al. PLoS One. 2017 Mar 10;12(3):e0173644. [NOTE: The transgene in this strain was previously described as using the unc-45 promoter, but it is actually the unc-54 promoter.]

eeeIs2 [unc-54p::Htt513(Q128)::YFP::unc-45 3'UTR]. Motility defect. YFP expression in body wall muscle cells. YFP is fused to a fragment of mutant human Huntingtin protein. Reference: Lee AL. et al. PLoS One. 2017 Mar 10;12(3):e0173644. [NOTE: The transgene in this strain was previously described as using the unc-45 promoter, but it is actually the unc-54 promoter.]

eeEx100 [his-24::GFP + rol-6(su1006)]. Rollers. Nuclear GFP fluorescence detected beginning with the eight-cell stage of the embryo in all somatic nuclei without the P-cell. In adults the GFP signal in somatic cells and in few hermaphrodites in undifferentiated germ nuclei and in oocytes and sperm. About 20% transmission.

eeEx106 [hil-1::GFP + rol-6(su1006)]. GFP expression in body wall muscles, in the vulva sex muscles, in the marginal cells of the pharynx, in a limited number of head neurons, in the cytoplasm of excretory cells. The expression starts in the about 100-cell embryo in a few cells in the periphery in the nucleoplasm and in the nucleoli. Complex extrachromosomal arrary....pick Rollers. About 20% Rollers.

Isolated as a single hermaphrodite from a flower bed soil sample in the botanic gardens in Chungcheng, Taipei, Taiwan, September 29, 2005. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Caenorhabditis elegans wild isolate. Isolated from compost from Jenny Pettifor's garden in the Paview neighborhood in Johannesburg, South Africa, on May 5, 2006. Haplotype (according to Cutter 2006 and Dolgin et al 2008): alpha. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Caenorhabditis briggsae wild isolate. Isolated from compost from Jenny Pettifor's garden in the Paview neighborhood in Johannesburg, South Africa, on May 5, 2006. Landscape: Urban_garden. Isolated from a compost sample from a private garden in Johannesburg, South Africa, March-April 06 by E. Dolgin. Same compost sample as ED3078-3089. WBPaper00035666. GPS: -26.200001 28.000000, Johannesburg, South Africa. Substrate: compost_heap. Sampled_by: Elie Dolgin WBPerson12345. 2006. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Dpy suppresses Rol and Lon. Strain appears to be only Dpy. Useful for mapping, especially Unc mutations. Separately, dpy-5 causes extreme dumpiness, rol-6 causes worms to roll over and lie in a "C" shape, and lon-1 worms are about 125% WT length.

Dpy suppresses Bli and Lon. Strain appears to be only slightly Dpy. Useful for mapping, especially Unc mutations. Separately, dpy-11 causes dumpiness, bli-6 adult worms develop blisters on their bodies, and lon-2 worms are about 150% WT length.

Mixed "strain" started from many different worms that emerged from the same apricot that gave rise to strain EG4181. Some worms emerged as dauers, but there were also L4s and adults. Consists of a mix of the worms that came from the apricot to try to maintain as much diversity as possible in the population and thus is not a true strain in the traditional sense. It will be sent as contaminated worms since it cannot be cleaned up without going through a bottleneck. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Male-female strain. Maintain by mating. Caenorhabditis sp. 6 wild isolate. Isolated by Michael Ailion and Ana-Joao Rodrigues from a rotting apple collected from the home of Anabela Fernandes in Amares, Portugal (address: Dr. Adolofo Vilela, no. 29, 4720-019 Amares, Portugal). Coordinates: 41 degrees, 37', 43.577 " N; 8 degrees, 20', 51.421 " W. Apple collected March 28, 2007. The apple produced a number of growing animals in different stages, including adults of both sexes. Male/Female Caenorhabditis species. 18S RNA sequence places it closest to PS1010 C. sp. 3.

oxIs322 [myo-2p::mCherry::H2B + myo-3p::mCherry::H2B + Cbr-unc-119(+)]. Wild type worms with mCherry fluorescence in pharyngeal and body wall muscle. Visible on dissection microscope at high magnification. Complex transgene insertion in place of Mos1 allele ttTi5605. Useful for following "invisible" insertions at ttTi5605 site by Mos1 Single Copy gene Insertion (MosSCI). Please note: The insertion was a complex event pulling in more than one transgene and parts of the array. Therefore, the exact molecular structure of the insert is not known. Therefore the strain should NOT be used as a control for insert copy number or other detailed molecular controls of MosSCI insertions. Succesfully used as a balancer for the ttTi5605 locus.

oxIs494 [peel-1p::GFP::peel-1 3'UTR + Cbr-unc-119(+)] II. GFP is expressed in the spermatogenic germline. During spermatogenesis, GFP remains in the residual body and is not packaged into sperm. Reference: Seidel HS, et al. PLoS Biol. 2011 Jul;9(7):e1001115.

qqIr7 [peel-1(qq99)] I. oxSi78 [peel-1p::peel-1 (introns included)::GFP::peel-1 3'UTR + Cbr-unc-119(+)] II. Genetic background is a mixture of N2 and wild isolate EG4348. The oxSi78 insertion produces a PEEL-1::GFP translational fusion. PEEL-1::GFP is expressed in the spermatogenic germline and packaged into sperm. PEEL-1::GFP appears to localize to fibrous body-membranous organelles. PEEL-1::GFP does not rescue peel-1(qq99). Reference: Seidel HS, et al. PLoS Biol. 2011 Jul;9(7):e1001115.

oxSi259 [eft-3p::GFP + Cbr-unc-119(+)] I. Cytoplasmic, green fluorescence expressed broadly (most cells). Integration into ttTi4348 mosSCI site (I:-5.32). oxIs322 [myo-2p::mCherry::H2B + myo-3p::mCherry::H2B + ? + Cbr-unc-119(+)] III. Nuclear, red fluorescence in pharynx and body wall muscle. Complex integration into ttTi5605 mosSCI site (II:0.77). oxTi81 [eft-3p::GFP::H2B::tbb-2 3'UTR + unc-18(+)] V. Nuclear, green fluorescence is broadly expressed (in most cells). Integration into chr.V: 1.21. Combined fluorescent balancer strain for LG I, LG II and LG V.

oxIs322 [myo-2p::mCherry::H2B + myo-3p::mCherry::H2B + ? + Cbr-unc-119(+)] III. Nuclear, red fluorescence in pharynx and body wall muscle. Complex integration into ttTi5605 mosSCI site (II:0.77). oxSi199 [unc-57p::tdTomato + unc-119(+)] IV. Synaptic red fluorescence visible on fluorescence dissecting scope. Integration into cxTi10882 mosSCI site (IV:-0.05). oxTi81 [eft-3p::GFP::H2B::tbb-2 3'UTR + unc-18(+)] V. Nuclear, green fluorescence is broadly expressed (in most cells). Integration into chr.V: 1.21. Him. Combined fluorescent balancer strain for LG II, LG IV and LG V. Strain contains him-5(e1490) to generate males for crosses.

oxIs322 [myo-2p::mCherry::H2B + myo-3p::mCherry::H2B + ? + Cbr-unc-119(+)] III. Nuclear, red fluorescence in pharynx and body wall muscle. Complex integration into ttTi5605 mosSCI site (II:0.77). oxTi80 [eft-3p::GFP::H2B::tbb-2 3'UTR + unc-18(+)] III. Nuclear, green fluorescence is broadly expressed (in most cells). Integration into chr. III: 21.21. Him. Combined fluorescent balancer strain for LG II and LG III. Strain contains him-5(e1490) to generate males for crosses.

oxIs322 [myo-2p::mCherry::H2B + myo-3p::mCherry::H2B + ? + Cbr-unc-119(+)] III. Nuclear, red fluorescence in pharynx and body wall muscle. Complex integration into ttTi5605 mosSCI site (II:0.77). oxTi80 [eft-3p::GFP::H2B::tbb-2 3'UTR + unc-18(+)] III. Nuclear, green fluorescence is broadly expressed (in most cells). Integration into chr. III: 21.21. oxSi199 [unc-57p::tdTomato + unc-119(+)] IV. Synaptic red fluorescence visible on fluorescence dissecting scope. Integration into cxTi10882 mosSCI site (IV:-0.05). Him. Combined fluorescent balancer strain for LG II, LG III and LG IV. Strain contains him-5(e1490) to generate males for crosses.

oxIs322 [myo-2p::mCherry::H2B + myo-3p::mCherry::H2B + ? + Cbr-unc-119(+)] III. Nuclear, red fluorescence in pharynx and body wall muscle. Complex integration into ttTi5605 mosSCI site (II:0.77). oxTi79 [eft-3p::GFP::H2B::tbb-2 3' UTR + unc-18(+)] III. Nuclear, green fluorescence is broadly expressed (in most cells). Integration into chr. III: -26.22. Him. Combined fluorescent balancer strain for LG II and LG III. Strain contains him-5(e1490) to generate males for crosses.

oxSi255 [snt-1p::GFP + Cbr-unc-119(+)] I. Integration into ttTi4348 mosSCI site (I:-5.32). Pan-neuronal GFP expression visible under dissection microscope. oxIs322 [myo-2p::mCherry::H2B + myo-3p::mCherry::H2B + ? + Cbr-unc-119(+)] III. Nuclear, red fluorescence in pharynx and body wall muscle. Complex integration into ttTi5605 mosSCI site (II:0.77). oxSi199 [unc-57p::tdTomato + unc-119(+)] IV. Synaptic red fluorescence visible on fluorescence dissecting scope. Integration into cxTi10882 mosSCI site (IV:-0.05). Him. Combined fluorescent balancer strain for LG I, LG II and LG IV. Strain contains him-5(e1490) to generate males for crosses.

oxTi886 [myo-3p::GFP::tbb-2 3'UTR + Cbr-unc-119(+)] II. Strain is healthy. NOTE: This strain is not necessarily homozygous - please verify before using. Cytoplasmic green fluorescence in body wall muscles visible under dissection microscope. This strain can be used for mapping or to facilitate genetic crosses. Integration site: (II:-14.32). Insertion into T08E11.8. Please see wormbuilder.org for exact insertion site. miniMos insertion of pCFJ1400 into unc-119(ed3)(11x outcrosss) with Cbr-unc-119(+) selection.

oxTi887 [myo-3p::GFP::tbb-2 3'UTR + Cbr-unc-119(+)] II. Strain is healthy. NOTE: This strain is not necessarily homozygous - please verify before using. Cytoplasmic green fluorescence in body wall muscles visible under dissection microscope. This strain can be used for mapping or to facilitate genetic crosses. Integration site: (II:2.59). Insertion into T08E11.8. Please see wormbuilder.org for exact insertion site. miniMos insertion of pCFJ1400 into unc-119(ed3)(11x outcrosss) with Cbr-unc-119(+) selection.

oxTi888 [myo-3p::GFP::tbb-2 3'UTR + Cbr-unc-119(+)] V. Strain is healthy. Pick GFP+ non-Unc to maintain. NOTE: This strain is not necessarily homozygous - please verify before using. Cytoplasmic green fluorescence in body wall muscles visible under dissection microscope. This strain can be used for mapping or to facilitate genetic crosses. Integration site: (V:3.88). Intergenic insertion. Please see wormbuilder.org for exact insertion site. miniMos insertion of pCFJ1400 into unc-119(ed3)(11x outcrosss) with Cbr-unc-119(+) selection.

oxTi889 [myo-3p::GFP::tbb-2 3'UTR + Cbr-unc-119(+)] V. Strain is healthy. NOTE: This strain is not necessarily homozygous - please verify before using. Cytoplasmic green fluorescence in body wall muscles visible under dissection microscope. This strain can be used for mapping or to facilitate genetic crosses. Integration site: (V:1.44). Insertion into F25G6.7. Please see wormbuilder.org for exact insertion site. miniMos insertion of pCFJ1400 into unc-119(ed3)(11x outcrosss) with Cbr-unc-119(+) selection.

Aldicarb resistant. This allele is a small exonic deletion that frameshifts exon 21, thus deleting the MUN domain of both long and short isoforms of unc-13. The reference allele e51 is R471-stop, affecting only UNC-13L. Derived by 2x outcross of BC168. Reference: Rose AM & Baillie DL. Genetics. 1980 Nov;96(3):639-48.

Animals with the duplication are WT. Animals which have lost the duplication are Sterile and Vul. At 15C rare animals will have a protruding vulva. At 20C and 25C animals with protruding vulva are more common, about 10%.

Unc. Temperature senstive for both gon-2 and fer-1. Maintain at 15C. Will also grow at 20C. Received new stock 10/12/00 from EJ.

Temperature sensitive for both gon-2 and fer-1. Maintain at 15C. Will also grow at 20C.

Heterozygotes are superficially wildtype and express GFP in body wall muscle nuclei. They segregate sterile ekl-1(om83) homozygotes and unc-15(e73) ccIs4251 homozygotes that are severely uncoordinated and GFP+ in body wall muscle nuclei. Pick wild-type GFP+ and check for correct segregation of progeny. The ccIs4251 insertion carries [(pSAK2) myo-3p::GFP::LacZ::NLS + (pSAK4) myo-3p::mitochondrial GFP + dpy-20(+)]. Reference: She X, et al. PLoS Genet. 2009 Aug;5(8):e1000624. doi: 10.1371/journal.pgen.1000624. PMID: 19714217.

Transformation of ray 6 to a thin ray which is anteriorly displaced and fuses with ray 4 (95%). A 10th ray is found in about 50% of the sides scored. Body is slightly shorter.

Transformation of ray 6 to a thin ray which is anteriorly displaced and fuses with ray 4 (95%). A 10th ray is found in about 50% of the sides scored. Slightly shorter than WT. mab-21(bx53)/yDf10 is embryonically lethal with embryo arrest at 2 fold stage.

Ray 3 and 4 fusion >60% at non-permissive temp. Ray 1 and 2 fusion about 10% at non-permissive temp. ts period is around L3-L4.

Transformation of ray 6 to a thin ray which is anteriorly displaced and fuses with ray 4 (99%). Body is slightly shorter. See also WBPaper00002235.

Extensive ray fusion. Posterior portion of body swollen at larval stages.

zIs356 [daf-16p::daf-16a/b::GFP + rol-6(su1006)]. See strain TJ356 for additional information about zIs356. Derived from RB1739 and TJ356.

Appears WT. orIs1 [pie-1p::GFP::mei-1 + unc-119(+)]. Maintain at 20C or above. Below 20C the GFP signal turns off.

Weakly semi-dominant, temperature sensitive, embryonic lethal mutant. 38% of embyros produced by homozygous mothers at 15C will hatch; 2% produced at 26C will hatch. Mutation is semi-dominant at 26C: 12% of embryos produced by heterozygous mothers hatched at 26C, and about 25% of the survivors were or295/or295, indicating the lethality is semi-dominant and maternal. Mutant embyros exhibit excess cortical actomyosin contractility (extra furrows and protrusions) in early embryonic cells, during interphase and most of mitosis. Throws males. or295 is a gga to aga substitution (G16R).

Dominant, conditional, maternal-effect. At 15C, almost all embryos hatch from or346/+ and or346/or346 mothers. At25C, about 85% of embryos die from or346/+ mothers and about 100% of embryos die from or346/or346 mothers.

Weakly semi-dominant, temperature sensitive, embryonic lethal mutant. 38% of embyros produced by homozygous mothers at 15C will hatch; 2% produced at 26C will hatch. Mutation is semi-dominant at 26C: 12% of embryos produced by heterozygous mothers hatched at 26C, and about 25% of the survivors were or295/or295, indicating the lethality is semi-dominant and maternal. Mutant embyros exhibit excess cortical actomyosin contractility (extra furrows and protrusions) in early embryonic cells, during interphase and most of mitosis. or295 is a gga to aga substitution (G16R).

orEx1[act-2 promoter::GFP::act-2 genomic fusion + rol-6(su1006)]. Shows cytoplasmic and cortical ACT-2::GFP expression in early embryonic cells, in epidermal cells during embryonic elongation, and in body wall muscle cells and some neurons in adults. All expression is zygotic; no germline expression is detected for this trangene even though act-2 is maternally expressed. Maintain by picking Rollers.

Strain is egg-laying defective. Homozygous mex-3(or20) is a non-conditional maternal effect lethal: worms fill up with dead eggs. Heterozygotes bag with 11/16 dead embryos and larvae. About 10% of worms can lay eggs and be mated into for outcrossing. The mex-3(or20) mutant embryos produce excess body wall muscle anteriorly.

or28 is a non-conditional maternal-effect embryonic lethal mutant ; the anterior pharynx is absent. and embryonic lethality is 100% penetrant. Pick single WT heterozygous hermaphrodites to maintain strain; these hets fill up with a mix of dead embryos and larvae [11/16 dead embryos due to aneuploidy from translocation segregation and lethal homozygous hT2; vulvaless due to homozygous lin-2(e1309) mutation; about 10% of lin-2(e1309) worms are leaky and lay eggs/can be mated into]. The homozygous or28 hermaphrodites fill up with dead embryos. The lin-2 background helps to score embryonic lethality for both heterozygotes and or28 homozygotes. or28 is a G to D mis-sense mutation at amino acid position 123.

or28 is a non-conditional maternal-effect embryonic lethal mutant ; the anterior pharynx is absent. and embryonic lethality is 100% penetrant. Pick single WT heterozygous hermaphrodites to maintain strain; these hets fill up with a mix of dead embryos and larvae [11/16 dead embryos due to aneuploidy from translocation segregation and lethal homozygous hT2; vulvaless due to homozygous lin-2(e1309) mutation; about 10% of lin-2(e1309) worms are leaky and lay eggs/can be mated into]. The homozygous or28 hermaphrodites fill up with dead embryos. The lin-2 background helps to score embryonic lethality for both heterozygotes and or28 homozygotes. Strain produces a lot of males due to him-8(ec56). or28 is a G to D mis-sense mutation at amino acid position 123.

qIs26 [lag-2::GFP + rol-6(su1006)]. or1948 is a CRISPR/Cas9 engineered mutation in cls-1 causing a frameshift and premature stop. Heterozygotes are Rollers and GFP+ in the distal tip cell, and segregate heterozygotes (WT Rol), lethal qC1 homozygotes, and or1948 homozygotes (lay 100% dead embryos). Pick WT GFP+ Rol and check for correct segregation of progeny to maintain. Reference: Schlientz AJ & Bowerman B. (2020) C. elegans CLASP/CLS-2 negatively regulates membrane ingression throughout the oocyte cortex and is required for polar body extrusion. BioRxiv.

qIs26 [lag-2::GFP + rol-6(su1006)]. or1951 is a CRISPR/Cas9 engineered mutation in cls-1 causing a frameshift and premature stop. Heterozygotes are Rollers and GFP+ in the distal tip cell, and segregate heterozygotes (WT Rol), lethal qC1 homozygotes, and or1951 homozygotes (lay 100% dead embryos). Pick WT GFP+ Rol and check for correct segregation of progeny to maintain. Reference: Schlientz AJ & Bowerman B. (2020) C. elegans CLASP/CLS-2 negatively regulates membrane ingression throughout the oocyte cortex and is required for polar body extrusion. BioRxiv.

ijmSi3 [mex-5p::cls-2(re-encoded)::GFP::tbb-2 3'UTR + Cbr-unc-119(+)] I. ltIs37 [pie-1p::mCherry::his-58 + unc-119(+)] IV. The coding sequence of GFP-tagged cls-2 in the transgene was re-coded using silent mutations to render it insensitive to RNAi-depletion of endogenous cls-2 expression. mCherry expression marks histones. Not known if unc-119(ed3) is still carried in the background of this strain. [NOTE: the ltIs37 [pie-1p::mCherry::his-58 + unc-119(+)] IV transgene was previously annotated as itIs37 in this strain. The correct name of the transgene is ltIs37 and not itIs37.] Reference: Schlientz A and Bowerman B. PLoS Genet. 2020 Oct 7;16(10):e1008751. doi: 10.1371/journal.pgen.1008751.