Search Strains

risIs1 [anmt-1p::anmt-1::GFP + unc-119(+)]. Superficially wild-type. GFP expression in Pharynx and body wall muscles. Reference: Schmeisser K, et al. Nat Chem Biol. 2013 Sep 29. doi: 10.1038/nchembio.1352.

Resistant to tetradecanoyl phorbol acetate. Semi-dominant.

Animals grow to be adults with smaller than normal body size and produce a reduced number of progeny on TPA-containing medium. No other apparent phenotypes were so far observed on NGM. Tc1 was originally inserted into a 2.4 kb HindIII genomic fragment. The 1.8 kb portion adjacent to the 3' end of the inserted Tc1 was replaced by an unidentified 1.0 kb fragment probably due to rearrangement during backcrossing.

Precocious alae. Reference: Bosse GD, et al. Mol Cell.2013 Apr 25;50(2):281-287.

Animals are dye-filling negative. A bit sick with about 30% dying during larval development and the others displaying a number of defects in organs/tissues containing hypodermal cells (hypodermis, rectum, vulva, excretory system).

Heterozygotes are WT and segregate WT, Uncs and dead eggs and larvae with severe body morphology defects that do not develop beyond the L2 stage. A few very rare mc44 larvae reach adulthood but they become sterile. mc 44 is a deletion affecting the downstream transcription unit of vab-10 named vab-10b. Fails to complement the vab-10 null reference allele vab-10(h1356), but complements the vab-10a alleles vab-10a(e698) and vab-10a(ju281).

lucSi100 [hsp16.41::vhhGFP4::zif-1::SL2::mCherry::his-11::tbb-2 3'UTR] II. Superficially wild-type morphology. Single-copy insertion of a GFP-nanobody::zif-1 fusion transgene under a heat-shock promoter. Allows conditional depletion of GFP-tagged proteins in all tissues via heat-shock expression of anti-GFP nanobody fusion to ZIF1 (mediated by recruited ZIF-1 but NOT requiring ZF1 tags). (Wang et al. (2017). A toolkit for GFP-mediated tissue-specific protein degradation in C. elegans. Development 144, 2694-2701.)

ieSi57 [eft-3p::TIR1::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. ieSi38 [sun-1p::TIR1::mRuby::sun-1 3'UTR + Cbr-unc-119(+)] IV. Endogenous drsh-1 tagged at both N- and C-termini with the auxin-inducible-degron (AID*) peptide. Strain expresses modified Arabidopsis thaliana TIR1 tagged with mRuby in germ line and soma. Animals are superficially wild-type; addition of auxin induces embryonic lethality and larval arrest phenotypes. Reference: Dexheimer et al. Curr Biol. 2020 Dec 21;30(24):5058-5065.e5. doi: 10.1016/j.cub.2020.09.066. Epub 2020 Oct 29. PMID: 33125867.

ieSi57 [eft-3p::TIR1::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. ieSi38 [sun-1p::TIR1::mRuby::sun-1 3'UTR + Cbr-unc-119(+)] IV. Endogenous drsh-1 tagged at both N- and C-termini with the auxin-inducible-degron (AID*) peptide. Endogenous pash-1 tagged with the AID* peptide at the C-terminus. Strain expresses modified Arabidopsis thaliana TIR1 tagged with mRuby in soma and germ line. Animals are superficially wild-type, addition of auxin induces embryonic lethality and larval arrest phenotypes. Reference: Dexheimer et al. Curr Biol. 2020 Dec 21;30(24):5058-5065.e5. doi: 10.1016/j.cub.2020.09.066. Epub 2020 Oct 29. PMID: 33125867.

ieSi57 [eft-3p::TIR1::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. ieSi38 [sun-1p::TIR1::mRuby::sun-1 3'UTR + Cbr-unc-119(+)] IV. lucIs20 [mir-35p::mirtron-35 + myo-2::mCherry]. lucIs24 [mir-52p::mirtron-51 + elt-2::dsRed + myo-2::mCherry]. Endogenous drsh-1 tagged at both N- and C-termini with the auxin-inducible-degron (AID*) peptide. Endogenous pash-1 tagged with the AID* peptide at the C-terminus. Strain expresses modified Arabidopsis thaliana TIR1 tagged with mRuby in soma and germline. In addition, strain expresses mirtron-versions of mir-35 and mir-51, which are processed independently of Drosha and Pasha. miRNA biogenesis can be stringently inhibited via simultaneous removal of Drosha and Pasha, causing absence of all canonical miRNAs and embryonic lethality upon Auxin treatment. Reference: Dexheimer et al. Curr Biol. 2020 Dec 21;30(24):5058-5065.e5. doi: 10.1016/j.cub.2020.09.066. Epub 2020 Oct 29. PMID: 33125867.

Mildly Unc. Adults display progressive vacuolization of body wall muscle. Neither phenotype is suppressed by mec-6(e1342).

Allele-specific suppressor of unc-8(e49). lb141 single mutant animals are coiler Uncs. Both suppression of e49 and coiling are recessive.

Maternal effect uncoordinated. Stiff posterior body. Severly Unc when attempting to move backwards. Partially wasted posterior body. Some embryonic and larval lethality.

Develops slowly (clk-3(qm38) rate). clk-1(qm30) is maternally rescued. Segregates 1/4 Dpy progeny. To study clk-3; clk-1 doubles place WT worms singly onto plates-the clk doubles will throw no Dpys and their progeny develop extremely slowly (about 3 days to hatch and 10 days for postembryonic development)-they will be sterile when they finally become adults.

Maternally rescued Dpy. Fully zygotically rescued but only partially maternally rescued. Some embryonic lethality and a high degree of larval lethality. Very poor embryonic elongation. Hatchlings are short and deformed. In later stages the anterior half of the body is short but well developed while the posterior is thin.

No visible phenotype. Severely decreased levels of the RoRNP-associated CeY RNA. Higher frequency of mutant 5S rRNA molecules into rop-1 ribosomes. See also WBPaper00003694.

GFP tag inserted at the 3' end of the endogenous daf-16 gene locus by CRISPR/Cas9 engineering. The GFP fusion tag does not interfere with the function of DAF-16 protein. DAF-16::GFP is expressed ubiquitously in most or all somatic tissues, including neurons, intestine, body wall muscles, and hypodermis, and also in the germ cells and oocytes. Reference: Zhang Y, et al. BioRxiv. 2021 Aug 2. 2007.2031.454567. https://doi.org/10.1101/2021.07.31.454567.

hqSi10 [myo-3p::TIR1::mRuby::unc-54 3' UTR + Cbr-unc-119(+)] II. AID* and mNeonGreen tag inserted at the 3' end of the endogenous daf-2 gene locus by CRISPR/Cas9 engineering. hqSi10 was generated by replacing the eft-3 promoter of the ieSi57 insertion (oxTi179 site) with the myo-3 promoter using CRISPR/Cas9. This strain can be used for auxin-inducible degradation (AID) of DAF-2 protein in the body wall muscles. hqSi10 previously known as hq375. Reference: Zhang Y, et al. BioRxiv. 2021 Aug 2. 2007.2031.454567. https://doi.org/10.1101/2021.07.31.454567.

hqSi10 [myo-3p::TIR1::mRuby::unc-54 3' UTR + Cbr-unc-119(+)] II. Maintain at 15C. GFP tag and AID* inserted at the 3' end of the endogenous daf-16 gene locus by CRISPR/Cas9 engineering. hqSi10 was generated by replacing the eft-3 promoter of the ieSi57 insertion (oxTi179 site) with the myo-3 promoter using CRISPR/Cas9. This strain can be used for auxin-inducible degradation (AID) of DAF-16 protein in the body wall muscles. hqSi10 previously known as hq375. Reference: Zhang Y, et al. BioRxiv. 2021 Aug 2. 2007.2031.454567. https://doi.org/10.1101/2021.07.31.454567.

mCherry knocked into C terminal of vit-6 by CRISPR/Cas9 in the background of parental strain BCN9071 vit-2(crg9070[vit-2::gfp]) X. This resulting double-labelled strain was crossed six times with N2 to remove potential off-target mutations. mCherry and GFP are co-localized in the intestine, body cavity, oocyte, and embryo in adult hermaphrodites. Reference: Zhai C, et al. Aging cell, 21(11), e13719. https://doi.org/10.1111/acel.13719 PMID: 36199214.

mCherry knocked into C terminal of vit-3 by CRISPR/Cas9 in the background of parental strain BCN9071 vit-2(crg9070[vit-2::gfp]) X. This resulting double-labelled strain was crossed six times with N2 to remove potential off-target mutations. mCherry and GFP are co-localized in the intestine, body cavity, oocyte, and embryo in adult hermaphrodites. Reference: Zhai C, et al. Aging cell, 21(11), e13719. https://doi.org/10.1111/acel.13719 PMID: 36199214.

mCherry knocked into C terminal of vit-1 by CRISPR/Cas9 in the background of parental strain BCN9071 vit-2(crg9070[vit-2::gfp]) X. This resulting double-labelled strain was crossed six times with N2 to remove potential off-target mutations. mCherry and GFP are co-localized in the intestine, body cavity, oocyte, and embryo in adult hermaphrodites. Reference: Zhai C, et al. Aging cell, 21(11), e13719. https://doi.org/10.1111/acel.13719 PMID: 36199214.

hqIs180 [sdhb-1p::mtLS::cpYFP + rol-6(su1006)]. Rollers. About four mitoflash events per anterior pharynx per 200 seconds on adult days 2-3 when cultured on standard NGM plates at 20C. In hqIs180 mtLS is a mitochondrial localization sequence from SDHB-1 and cpYFP is circularly permuted yellow fluorescent protein, a superoxide sensor (Wang W. et al., Cell, 2008). The cpYFP signal is detected in most or all tissues, but most strongly in the pharyngeal muscles. Reference: Shen E-Z, et al. Nature. 2014 Feb 12. doi: 10.1038/nature13012.

hqIs180 [sdhb-1p::mtLS::cpYFP + rol-6(su1006)]. Rollers. About two mitoflash events per anterior pharynx per 200 seconds on adult day 3 when cultured on standard NGM plates at 20 ºC. In hqIs180, mtLS is a mitochondrial localization sequence from SDHB-1 and cpYFP is circularly permuted yellow fluorescent protein, a superoxide sensor (Wang W. et al., Cell, 2008). The cpYFP signal is detected in most or all tissues, but most strongly in the pharyngeal muscles. Reference: Shen E-Z, et al. Nature. 2014 Feb 12. doi: 10.1038/nature13012.

hqIs180 [sdhb-1p::mtLS::cpYFP + rol-6(su1006)]. Rollers. About three mitoflash events per anterior pharynx per 200 seconds on adult day 3 when cultured on standard NGM plates at 20 ºC. In hqIs180, mtLS is a mitochondrial localization sequence from SDHB-1 and cpYFP is circularly permuted yellow fluorescent protein, a superoxide sensor (Wang W. et al., Cell, 2008). The cpYFP signal is detected in most or all tissues, but most strongly in the pharyngeal muscles. Reference: Shen E-Z, et al. Nature. 2014 Feb 12. doi: 10.1038/nature13012.

hqIs180 [sdhb-1p::mtLS::cpYFP + rol-6(su1006)]. Rollers. About six mitoflash events per anterior pharynx per 200 seconds on adult day 3 when cultured on standard NGM plates at 20 ºC. In hqIs180, mtLS is a mitochondrial localization sequence from SDHB-1 and cpYFP is circularly permuted yellow fluorescent protein, a superoxide sensor (Wang W. et al., Cell, 2008). The cpYFP signal is detected in most or all tissues, but most strongly in the pharyngeal muscles. Reference: Shen E-Z, et al. Nature. 2014 Feb 12. doi: 10.1038/nature13012.

mirSi34 [myo-3p::lox2272::mtagBFP2::tbb-2 3'UTR::lox2272::ChR2-HRDC::SL2::jRGECO1a::let-858 3'UTR + Cbr-unc-119(+)] II. Blue fluorescence in body wall muscles. Combine with CRE driven by a promoter expressed in desired muscle cells to switch from blue expression to ChR2-HRDC and jRGECO1a expression. Reference: Porta-de-la-Riva M, et al. Nat Methods. 2023 May;20(5):761-769. doi: 10.1038/s41592-023-01836-9. PMID: 37024651.

Bacteria. CeMbio Collection. Formerly referred to as PM or Pseudomonas mendocina. LB, 20-26C. Isolate from a C. elegans population in a soil, compost laboratory environment. More information about collection on the project's wiki: http://www.cembio.uni-kiel.de/. 16S rRNA primer: 27F/1492R. 16S rRNA sequence: TGAAGAGTTTGATCATGGCTCAGATTGAACGCTGGCGGCAGGCCTAACACATGCAAGTCGAGCGGATGAAGAGAGCTTGCTCTCTGATTTAGCGGCGGACGGGTGAGTAATGCCTAGGAATCTGCCTGGTAGTGGGGGATAACGTTCCGAAAGGAACGCTAATACCGCATACGTCCTACGGGAGAAAGCAGGGGACCTTCGGGCCTTGCGCTATCAGATGAGCCTAGGTCGGATTAGCTAGTTGGTGAGGTAATGGCTCACCAAGGCTACGATCCGTAACTGGTCTGAGAGGATGATCAGTCACACTGGAACTGAGACACGGTCCAGACTCCTACGGGAGGCAGCAGTGGGGAATATTGGACAATGGGCGAAAGCCTGATCCAGCCATGCCGCGTGTGTGAAGAAGGTCTTCGGATTGTAAAGCACTTTAAGTTGGGAGGAAGGGCAGTAAGCTAATACCTTGCTGTTTTGACGTTACCGACAGAATAAGCACCGGCTAACTTCGTGCCAGCAGCCGCGGTAATACGAAGGGTGCAAGCGTTAATCGGAATTACTGGGCGTAAAGCGCGCGTAGGTGGTTCGTTAAGTTGGATGTGAAAGCCCCGGGCTCAACCTGGGAACTGCATCCAAAACTGGCGAGCTAGAGTACGGTAGAGGGTGGTGGAATTTCCTGTGTAGCGGTGAAATGCGTAGATATAGGAAGGAACACCAGTGGCGAAGGCGACCACCTGGACTGATACTGACACTGAGGTGCGAAAGCGTGGGGAGCAAACAGGATTAGATACCCTGGTAGTCCACGCCGTAAACGATGTCAACTAGCCGTTGGGTACCTTGAGTACTTAGTGGCGCAGCTAACGCATTAAGTTGACCGCCTGGGGAGTACGGCCGCAAGGTTAAAACTCAAATGAATTGACGGGGGCCCGCACAAGCGGTGGAGCATGTGGTTTAATTCGAAGCAACGCGAAGAACCTTACCTGGCCTTGACATGCAGAGAACTTTCCAGAGATGGATTGGTGCCTTCGGGAACTCTGACACAGGTGCTGCATGGCTGTCGTCAGCTCGTGTCGTGAGATGTTGGGTTAAGTCCCGTAACGAGCGCAACCCTTGTCCTTAGTTACCAGCACGTTATGGTGGGCACTCTAAGGAGACTGCCGGTGACAAACCGGAGGAAGGTGGGGATGACGTCAAGTCATCATGGCCCTTACGGCCAGGGCTACACACGTGCTACAATGGTCGGTACAAAGGGTTGCCAAACCGCGAGGTGGAGCTAATCCCATAAAACCGATCGTAGTCCGGATCGCAGTCTGCAACTCGACTGCGTGAAGTCGGAATCGCTAGTAATCGTGAATCAGAATGTCACGGTGAATACGTTCCCGGGCCTTGTACACACCGCCCGTCACACCATGGGAGTGGGTTGCTCCAGAAGTAGCTAGTCTAACCTTCGGGGGGACGGTTACCACGGAGTGATTCATGACTGGGGTGAAGTCGTAACAAGGTAGCCGTAGGGGAACCTGCGGCTGGATCACCTCCTT

Forages while backing. Deletion in L-aromatic amino acid decarboxylase with homology to histidine decarboxylase. Reference: Alkema M, et al. Neuron. 2005 Apr 21;46(2):247-60.

Forages while backing. Deletion in L-aromatic amino acid decarboxylase with homology to histidine decarboxylase. Reference: Alkema M, et al. Neuron. 2005 Apr 21;46(2):247-60.

Egl. Strain contains both a mec mutation and an egl mutation. Touch insensitive. Abnormal vulva. Forms bags of worms.

Heterozygotes are WT and segregate WT, Uncs, Ste/Mel, and dead eggs. The epc-1(n4076) deletion removes 886 nucleotides from the epc-1 locus (Y111B2A.11). Relative to the first nucleotide of the predicted initiator ATG, the deletion begins at about nt. 2014 and ends at about nt. 2899 to give the junction sequence CTTCTCTGT/CCGGCTTTA.

Heterozygotes are WT and segregate WT, Unc, Ste/Mel, and dead eggs. ssl-1(n4077) deletion removes 683 nucleotides from the ssl-1 locus (Y111B2A.23). Relative to the first nucleotide of the predicted initiator ATG, the deletion begins at about nt. 5075 and ends at about nt. 5757 to give the junction sequence GATATACAC/AGACCTAAT.

n3419 is a deletion in L-aromatic amino acid decarboxylase with homology to histadine decarboxylase. Forages while backing. PKA adc-1.

Heterozygotes are WT and GFP+ and segregate Ste GFP- and dead eggs. The myo-1(n4075) deletion removes 1010 nucleotides from the mys-1 locus (VC5.4). Relative to the first nucleotide of the predicted initiator ATG, the deletion begins at about nt. 106 and ends at about nt. 1115 to give the junction sequence GATGCCGGT/TCTGCGTGGG.

Worms are weakly retarded, with cold-sensitive supernumerary adult-stage molt phenotype (<5% at 20C, about 70% at 15C). 293 bp deletion encompassing the mir-48 gene. mir-48 is at 5908 to 5885 of F56A12. Deletion goes from -45 to +248 from start of mir-48.

Maintain by picking wild-type animals raised at 25C. Heterozygotes will be wild-type and segregate wild-type, Unc, Sterile Muv, and males. The phenotype of homozygous lin-13 hermaphrodites segregating from a heterozygous mother depends on the temperature at which the strain was grown. At 25C, homozygous hermaphrodites segregating from a heterozygote are both Muv and sterile. At 20C, ~1/2 of hermaphrodites segregating from a heterozygote are sterile, but only a few are Muv. At 15C, hermaphrodites segregating from a heterozygote are almost wild type in appearance and fertility. However, if the progeny of these 15C animals are grown at 15C, all are sterile and some are Muv. If the progeny of these 15C animals are grown at 25C, then some animals arrest during larval growth and the rest are both sterile and Muv. The male phenotype similarly is heat sensitive; only males that are the progeny of lin-13 hermaphrodites and are grown at 20C or 25C have ventral protrusions. Reference: Ferguson EL & Horvitz HR. Genetics. 1985 May;110(1):17-72. PMID: 3996896.

Both deletions are homozygous by PCR. mir-63, mir-229, mir-64, mir-65, and mir-66 are related in sequence. nDf63 removes mir-229, mir-64, mir-65, and mir-66. nDf63 was outcrossed 6x; n4568 has been outcrossed 2x. Reference: Curr Bio (2010) doi:10.1016/j.cub.2009.12.051.

nIs286 [mir-71(+) + sur-5::GFP] X. Rescues mir-71(n4115) lifespan defect. Reference: Boulias K, Horvitz HR. Cell Metab. 2012 Apr 4;15(4):439-50.

nIs287 [mir-71(+) + sur-5::GFP] X. Rescues mir-71(n4115) lifespan defect. Reference: Boulias K, Horvitz HR. Cell Metab. 2012 Apr 4;15(4):439-50.

nIs289 [mir-71(+) + sur-5::GFP] X. Rescues mir-71(n4115) lifespan defect. Reference: Boulias K, Horvitz HR. Cell Metab. 2012 Apr 4;15(4):439-50.

Egl. Mate with about 50% of WT efficiency.

Slightly Unc. Abnormal Q lineage. Males mate with about 50% efficiency of WT. Egl.

DpyUnc. e184 and n491 are both semi-dominant.

Cells that normally die survive. [3/02: A mutation that was not reported (nucleotide 1251 C-> T causing codon 80 ->ochre) was found by Tak Hung. It turns out the mutation was misannotated in the original paper (Development, 1992, 116:309). Bob Horvitz also confirmed the discovery.

Multivulva. See also WBPaper00001990. n309 extends into both lin-15B and lin-15A.

Unc. Egl. Transformation of sex myoblasts into body wall muscle.

Dpy. Egl. Transformation of sex myoblasts into body wall muscle.

Temperature sensitive Muv. Temperature sensitive lethal above 20C.

Temperature sensitive. About 50% HSN missing. Mab confirmed by Hillel Schwartz 12/5/00. Rec'd new stock from Horvitz lab 12/2000. [NOTE: The genotype of this strain was incorrectly described as carrying mab-5(mu114); however, the actual allele is mab-5(mu14).]