Search Strains

crEx498 [dpy-14p::ptr-15(+) + sur-5p::GFP]. Pick animals with nuclear GFP throughout body to maintain. Lethal ptr-15 deletion allele marked with pharyngeal GFP [loxP ::myo-2p::GFP::unc-54 3’UTR + rps-27p::neoR::unc-54 3’UTR::loxP]; lethality rescued by hypodermal expression of PTR-15 form crEx498 array. Non-nuclear GFP animals (only pharyngeal expression) will be dead eggs and dead hatchlings. Derived from parental strain VC4151. References: O’Rourke et al. (in revision 2024).

pduEx1 [pCE-bJUN-VN173 + pCE-bFOX-VC155 + rol-6(su1006)]. Pick Rollers to maintain. Heat-shock induces protein expression and BiFC complementation consistent with expression of the hsp-16.2 promoter.

Dominant, gain-of-function mutation in egl-30; missense M244I. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Heterozgyotes are WT and segregate WT, Dpys, and Ste or Mel. Pick wild-type individuals and check for correct segregation of progeny to maintain. bli-4 is suppressed by dpy-1 in hT2 homozygotes-only see a very few DpyBli.This strain cannot be distributed to commercial organizations. ep220 is likely Mel. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

epEx141 [sbp-1::GFP::SBP-1 + rol-6(su1006)]. ep79 is a strong allele of sbp-1 (ts lethal). sbp-1 aka pin-1. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Bacteria. CeMbio Collection. Isolate from soil of mesocosm experiment. More information about collection on the project's wiki: http://www.cembio.uni-kiel.de/. 16S rRNA primer: 27F/1492R. 16S rRNA sequence: TTGAAGAGTTTGATCATGGCTCAGATTGAACGCTGGCGGCAGGCCTAACACATGCAAGTCGAACGGTAACAGGAAGCAGCTTGCTGCTTTGCTGACGAGTGGCGGACGGGTGAGTAATGTCTGGGAAACTGCCTGATGGAGGGGGATAACTACTGGAAACGGTAGCTAATACCGCATAACGTCGCAAGACCAAAGAGGGGGACCTTCGGGCCTCTTGCCATCGGATGTGCCCAGATGGGATTAGCTAGTAGGTGGGGTAACGGCTCACCTAGGCGACGATCCCTAGCTGGTCTGAGAGGATGACCAGCCACACTGGAACTGAGACACGGTCCAGACTCCTACGGGAGGCAGCAGTGGGGAATATTGCACAATGGGCGCAAGCCTGATGCAGCCATGCCGCGTGTATGAAGAAGGCCTTCGGGTTGTAAAGTACTTTCAGCGGGGAGGAAGGCGATAAGGTTAATAACCTTGTCGATTGACGTTACCCGCAGAAGAAGCACCGGCTAACTCCGTGCCAGCAGCCGCGGTAATACGGAGGGTGCAAGCGTTAATCGGAATTACTGGGCGTAAAGCGCACGCAGGCGGTCTGTCAAGTCGGATGTGAAATCCCCGGGCTCAACCTGGGAACTGCATTCGAAACTGGCAGGCTAGAGTCTTGTAGAGGGGGGTAGAATTCCAGGTGTAGCGGTGAAATGCGTAGAGATCTGGAGGAATACCGGTGGCGAAGGCGGCCCCCTGGACAAAGACTGACGCTCAGGTGCGAAAGCGTGGGGAGCAAACAGGATTAGATACCCTGGTAGTCCACGCCGTAAACGATGTCGACTTGGAGGTTGTGCCCTTGAGGCGTGGCTTCCGGAGCTAACGCGTTAAGTCGACCGCCTGGGGAGTACGGCCGCAAGGTTAAAACTCAAATGAATTGACGGGGGCCCGCACAAGCGGTGGAGCATGTGGTTTAATTCGATGCAACGCGAAGAACCTTACCTACTCTTGACATCCAGAGAACTTAGCAGAGATGCTTTGGTGCCTTCGGGAACTCTGAGACAGGTGCTGCATGGCTGTCGTCAGCTCGTGTTGTGAAATGTTGGGTTAAGTCCCGCAACGAGCGCAACCCTTATCCTTTGTTGCCAGCGGTTAGGCCGGGAACTCAAAGGAGACTGCCAGTGATAAACTGGAGGAAGGTGGGGATGACGTCAAGTCATCATGGCCCTTACGAGTAGGGCTACACACGTGCTACAATGGCGCATACAAAGAGAAGCGACCTCGCGAGAGCAAGCGGACCTCATAAAGTGCGTCGTAGTCCGGATTGGAGTCTGCAACTCGACTCCATGAAGTCGGAATCGCTAGTAATCGTGGATCAGAATGCCACGGTGAATACGTTCCCGGGCCTTGTACACACCGCCCGTCACACCATGGGAGTGGGTTGCAAAAGAAGTAGGTAGCTTAACCTTCGGGAGGGCGCTTACCACTTTGTGATTCATGACTGGGGTGAAGTCGTAACAAGGTAACCGTAGGGGAACCTGCGGTTGGATCACCTCCTT

cerIs7 [lsm-1::GFP(fosmid) + unc-119(+)]. cerIs7 rescues all the temperature-sensitive phenotypes of lsm-1(tm3585). Reporter contains full-length lsm-1 tagged with GFP. GFP was inserted into a fosmid containing lsm-1. GFP is expressed diffusely in the cytoplasm of somatic cells. Under heat shock conditions, GFP accumulates forming cytoplasmic foci. Reference: Cornes E, et al. RNA. 2015 Sep;21(9):1544-53.

cer1 is a CRISPR-generated 368 bp deletion removing intron 2 and part of exon 3, creating a premature stop codon. Low penetrance of developmental defects such as abnormal L1 morphology, aberrant gonad migration, and an abnormal number of distal tip cells. Reference: Brena D, et al. Sci Rep. 2020 Sep 30;10(1):16153.

cer2 is a CRISPR-generated 438 bp deletion + 50 bp insertion removing intron 2 and part of exon 3, creating a premature stop codon. Low penetrance of developmental defects such as abnormal L1 morphology, aberrant gonad migration, and an abnormal number of distal tip cells. Reference: Brena D, et al. Sci Rep. 2020 Sep 30;10(1):16153.

Partial loss of function allele. prp-8(cer22[R2303G]) point mutation mimics a mutation identified in a Retinitis Pigmentosa patient. Slow growth (Gro). Reference: Kukhtar D, et al. Hum Mol Genet. 2020 Mar 27;29(5):756-765. doi: 10.1093/hmg/ddz315. PMID: 31919495

cer9 is a CRISPR-generated 462 bp deletion at the beginning of the ikb-1 coding sequence, including the start codon (no transcript should be synthesized). Low penetrance of developmental defects such as abnormal L1 morphology, aberrant gonad migration, and an abnormal number of distal tip cells. Reference: Brena D, et al. Sci Rep. 2020 Sep 30;10(1):16153.

Partial loss of function allele. snrp-200(cer24[S1080L]) point mutation mimics a mutation identified in a Retinitis Pigmentosa patient. Slow growth (Gro). Reference: Kukhtar D, et al. Hum Mol Genet. 2020 Mar 27;29(5):756-765. doi: 10.1093/hmg/ddz315. PMID: 31919495

Partial loss of function allele. snrp-200(cer23[V676L]) point mutation mimics a mutation identified in a Retinitis Pigmentosa patient. Reduced brood size, slow growth (Gro). Reference: Kukhtar D, et al. Hum Mol Genet. 2020 Mar 27;29(5):756-765. doi: 10.1093/hmg/ddz315. PMID: 31919495

Reduced brood size. Genetic interaction with rpn-9. cer27 is a 1033 bp deletion removing the start codon and nearly all of the ubh-4 coding sequence. Reference: Martinez-Fernandez C, et al. Cells. 2023 Mar 18;12(6):929. doi: 10.3390/cells12060929. PMID: 36980270

mIs14 [myo-2::GFP]. Heterozygotes are WT and GFP+ with signal in the pharynx. Heterozygote animals segregate heterozygotes (WT GFP+), mIn1 homozygotes (Dpy and brighter GFP+), and rsr-2(tm2625) homozygotes (Lva non-GFP). Pick WT GFP+ animals and check for proper segregation of progeny to maintain. Reference: Fontrodona L, et al. PLoS Genet. 2013 Jun;9(6):e1003543.

Endogenous sftb-1 reporter generated by CRISPR/Cas9 using the Nested CRISPR protocol (Vicencio et al., 2019 Genetics). mCherry was amplified from pJJR83 plasmid and inserted at the 5' end of the sftb-1 gene. External primers used for genotyping: (For: AGCTATCGAAGTTTAGGATGTTGTT) (Rev: CGGTTCCAATCGAGTCTAGGTA) Reference: Serrat X, et al. PLoS Genet. 2019 Oct 21;15(10):e1008464.

Homozygous viable mutation balanced by GFP- and dpy-10-marked inversion. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP, Dpy bright GFP (mIn1 homozygotes), and non-GFP cer140 gk401 homozygotes (synthetic sterile). Pick WT dim GFP and check for correct segregation of progeny to maintain. Generated by CRISPR-mediated deletion of ubh-4 in gk401 mutant background. Reference: Martinez-Fernandez C, et al. Cells. 2023 Mar 18;12(6):929. doi: 10.3390/cells12060929. PMID: 36980270

Dose-dependent sensitivity (developmental arrest) to pladienolide B and herboxidiene (modulators of pre-mRNA splicing). sftb-1(cer144[S1090A, A1095T, I1096V, F1101Y]) contains four missense mutations reproducing the HEAT repeat 15 of the human SF3B1 protein. Ten silent mutations increase primer specificity for PCR genotyping. Primers used for genotyping: (WT For: GAGCTGCAATTAATACATTTGGATTT) (WT Rev: AAACTCGCATTCCTTCACAT) (cer144 For: GGTACTATTCTGTGGCGTCT) (cer144 Rev: GTAACCGAAAGTGTTCACAGTT) Reference: Serrat X, et al. PLoS Genet. 2019 Oct 21;15(10):e1008464.

No obvious phenotype. comt-4(cer157) is a complete deletion of the comt-4 gene (coding sequence + introns), which was replaced by GFP::H2B (Nested CRISPR, Vicencio et al, Genetics 2019), thereby creating a null allele and a transcriptional reporter at the same time. Reference: Martínez-Fernández C, et al. Dis Model Mech. 2022 Mar 1;15(3):dmm049161. doi: 10.1242/dmm.049161. PMID: 35107130

Abnormal locomotion can be rescued with dopamine. cat-2(cer181) is a complete deletion of the cat-2 gene (coding sequence + introns), which was substituted by the sequence of the step 1 repair for GFP::H2B (Nested CRISPR, Vicencio et al, Genetics 2019). Allele can be detected using the following primers: Fwd: ctatgtgaagtcacacctgtc Rev: cttgctggaagtgtacttggtg. Reference: Martínez-Fernández C, et al. Dis Model Mech. 2022 Mar 1;15(3):dmm049161. doi: 10.1242/dmm.049161. PMID: 35107130

Missense mutations D1135L and S1136W, G1218K and E1219Q, and R1335Q and T1337R were introduced on the Cas9 gene at EG9615 strain, to cause endogenous expression of the Cas9 variant SpG. SpG is efficient for CRISPR on NGN PAM sites. Reference: Vicencio J, et al. Nature Communication, 2022. May 12;13(1):2601. doi: 10.1038/s41467-022-30228-4.

Superficially wild-type. tm2607 is a 196 bp deletion + 1bp insertion that removes part of an essential gene, but produces viable animals. Reference: Fontrodona L, et al. PLoS Genet. 2013 Jun;9(6):e1003543.

Isolated in 1991 by Carlos E. Winter in soil samples taken at the University of Sao Paulo in Brazil. Hermaphrodite strain. Adults are smaller than C. elegans. The life cycle is a little longer than C. elegans at 22C. Each lays about 300 eggs in the three days following the moult from L4 to adult. Eggs are laid just after being fertilized resulting sometimes in plates with many eggs (much more than C. elegans). See Comp. Biochem. Physiol 103B: 189, 1992. See Nematology 2(1): 89-98, 2000. Can be grown and maintained on NGM. L1s easily frozen and stored in liquid nitrogen. This strain is deposited in Paul Sternberg's collection under the name PS1022. The species has not yet been determined; Lynn Carta will publish a paper proposing Oscheius brevesophaga. DO NOT use this name before the paper is published. Contact Carles E. Winter or Lynn Carta before publishing anything official about this strain. See also WBPaper00004471 and WBPaper00004485. AKA Oscheius sp. 1.

muIs61 [(pKL78) daf16::GFP + rol-6(su1006)]. muIs61 rescues daf-16(mu86). muIs61 is a gamma-induced insertion of muEx50. muIs61 insertion point has not been mapped.

muEx158 [daf-16cAM::GFP + sur-5p::GFP] (AM = AKT-site mutant). Pick GFP+ worms to maintain. Sterile at 25C; grow at 20C or less. muEx158 contains GFP-tagged daf-16 c isoform (described as a1 isoform in Lin, et al. Nat Genet. 2001) with 4 Ser/Thr residues mutated to Ala, which completely rescues dauer formation and partially restores longevity of daf-16; daf-2 double mutants. Reference: Lin K, et al. Nat Genet. 2001 Jun;28(2):139-45.

muIs84 [(pAD76) sod-3p::GFP + rol-6(su1006)]. muEx211 [ges-1p::daf-16::GFP + rol-6(su1006)]. Pick Rollers to maintain. Partial rescue of lifespan phenotype. Some animals show variable daf-16 expression in the intestine. Grows okay at 15C. [NOTE: muEx211 is quite unstable. Be sure to pick Rollers to avoid losing the array.]

muEx268 [ges-1p::GFP::daf-16(cDNA) + odr-1::RFP]. daf-16 GFP expressed in intestine. Partial rescue of lifespan phenotype. Grows okay at 15C. Pick RFP to maintain.

Temperature-sensitive allele of daf-10 exhibits dye filling (Dyf) phenotype at 25C and non-Dyf at 20C.

muIs120 [ges-1p::GFP::daf-16 + rol-6(su1006)]. Maintain at 15-20C. Rollers. Long-lived. Gamma irradiation-induced integration of muEx211. Rescues daf-16a1/c in the intestine (described in Libina et al, 2003). Reference: Zhang P, et al. Cell Metab, 2013. 17(1): p. 85-100.

muEx158 [daf-16cAM::GFP + sur-5p::GFP] (AM = AKT-site mutant). Pick GFP+ worms to maintain. Sterile at 25C; grow at 20C or less. muEx158 contains GFP-tagged daf-16 c isoform (described as a1 isoform in Lin, et al. Nat Genet. 2001) with 4 Ser/Thr residues mutated to Ala, which rescues daf-16 mutants from defective dauer formation and also partially rescues longevity defect of daf-16; glp-1 double mutants. Reference: Berman JR, & Kenyon C. Cell. 2006 Mar 10;124(5):1055-68.

Temperature-sensitive. Sterile at 25C. [NOTE: can be grown at 20C, but 15C might be better for long-term propagation.] kri-1(ok1251) suppresses the longevity of glp-1(e2141) mutants.

muIs131 [unc-119p::GFP::daf-16 + rol-6(su1006)]. Maintain at 15-20C. Rollers. Modestly long-lived. Gamma irradiation-induced integration of muEx184. Rescues daf-16a1/c in neurons (described in Libina et al, 2003). Reference: Zhang P, et al. Cell Metab, 2013. 17(1): p. 85-100.

muIs126 [myo-3p::GFP::daf-16 + rol-6(su1006)]. Maintain at 15-20C. Rollers. Gamma irradiation-induced integration of muEx215. Rescues daf-16a1/c in muscles (described in Libina et al, 2003). Reference: Zhang P, et al. Cell Metab, 2013. 17(1): p. 85-100.

Temperature sensitive sterile at 25C. tcer-1(-) causes loss of germ cells and increases lifespan. Reference: Ghazi A, Henis-Korenbilt S, & Kenyon C (2009) PLoS Genet 5(9):e1000639.

Temperature sensitive sterile at 25C. tcer-1(-) causes loss of germ cells and increases lifespan. Reference: Ghazi A, Henis-Korenbilt S, & Kenyon C (2009) PLoS Genet 5(9):e1000639.

muEx340 [ges-1p::RFP + ges-1p::ins-7]. Intestinal expression of ins-7 shortens lifespan. Pick RFP animals to maintain.

muIs142 [ges-1p::GFP::daf-16(cDNA) + odr-1p::RFP]. Maintain at 15-20C. Gamma irradiation-induced integration of muEx268. Rescues daf-16a1/c in the intestine (described in Libina et al, 2003). Reference: Zhang P, et al. Cell Metab, 2013. 17(1): p. 85-100.

Alae-to-ray transformation similar to that of n372 animals.

muIs9 [hs-mab-5 + C14G10]. Heat-shock inducible mab-5. C14G10 contains a WT copy of unc-31. muIs9 integrated by gamma irradiation.

Alae-to-ray transformation similar to that of n372 animals.

muEx473 [kin-19p::kin-19::tagRFP + tph-1p::GFP]. Pick RFP+ GFP+ animals to maintain. Low transmission rate. Translational fusion of KIN-19 displaying age-dependent aggregation. Reference: David DC, et al. PLoS Biol. 2010 Aug 10;8(8):e1000450.

Weak allele of bar-1.

muIs23 [hsp::lin-39 + (pMH86) dpy-20(+)]. Heat-shock inducible lin-39. muIs23 is a spontaneous integrant whose chromosomal location is unknown. [NOTE: This strain was previously described as carrying lin-39(n1760), but it is actually carrying the g to a substitution of mu26. Strain MT7255 has been confirmed to be carrying the a to t substitution of n1760.]

muIs252 [eft-3p::wrmScarlet1-10::unc-54 3'UTR + Cbr-unc-119(+)] II. Somatic expression of wrmScarlet1-10 (under the control of the eft-3 promoter and unc-54 3'UTR). Reference: Goudeau J, et al. Genetics. 2021 Apr 15;217(4):iyab014. doi: 10.1093/genetics/iyab014. PMID: 33693628

muIs253 [eft-3p::sfGFP1-10::unc-54 3'UTR + Cbr-unc-119(+)] II. Somatic expression of sfGFP1-10 (under the control of the eft-3 promoter and the unc-54 3'UTR). [NOTE: A low level of "leaky" GFP expression from sfGFP1-10 is detected at high magnifications.] Reference: Goudeau J, et al. Genetics. 2021 Apr 15;217(4):iyab014. doi: 10.1093/genetics/iyab014. PMID: 33693628

muIs253 [eft-3p::sfGFP1-10::unc-54 3'UTR + Cbr-unc-119(+)] II. muIs252 [eft-3p::wrmScarlet1-10::unc-54 3'UTR + Cbr-unc-119(+)] II. Somatic expression of sfGFP1-10 and wrmScarlet1-10 (both under the control of the eft-3 promoter and the unc-54 3'UTR). [NOTE: A low level of "leaky" GFP expression from sfGFP1-10 is detected at high magnifications.] Reference: Goudeau J, et al. Genetics. 2021 Apr 15;217(4):iyab014. doi: 10.1093/genetics/iyab014. PMID: 33693628

muIs253 [eft-3p::sfGFP1-10::unc-54 3'UTR + Cbr-unc-119(+)] II. Somatic expression of sfGFP1-10 (under the control of the eft-3 promoter and the unc-54 3'UTR). GFP11 tag inserted into endogenous his-3 locus via CRISPR/Cas9 insertion into parental strain CF4587. Reference: Goudeau J, et al. Genetics. 2021 Apr 15;217(4):iyab014. doi: 10.1093/genetics/iyab014. PMID: 33693628

muIs252 [eft-3p::wrmScarlet1-10::unc-54 3'UTR + Cbr-unc-119(+)] II. Homozygous viable. Endogenously-tagged his-3::wrmScarlet11(x3) generated via CRISPR/Cas9 insertion of three wrmScarlet11 tags into the endogenous his-3 locus in parental strain CF4582. Reference: Goudeau J, et al. Genetics. 2021 Apr 15;217(4):iyab014. doi: 10.1093/genetics/iyab014. PMID: 33693628

muIs257 [myo-3p::wrmScarlet1-10::unc-54 3'UTR] I. Muscle-specific expression of wrmScarlet1-10 (Under the control of the myo-3 promoter and unc-54 3'UTR). Generated using CRISPR/Cas9 in the SKI-LODGE strain WBM1126. Reference: Goudeau J, et al. bioRxiv 2020.07.02.185249; doi: https://doi.org/10.1101/2020.07.02.185249

muIs252 [eft-3p::wrmScarlet1-10::unc-54 3'UTR + Cbr-unc-119(+)] II. split-wrmScarlet11 inserted at the N-terminus of the endogenous tbb-2 locus; detectable in all somatic tissues where wrmScarlet1-10 is present. Figure 3B from Goudeau et al., Genetics 2021. Reference: Goudeau J, et al. Genetics. 2021 Apr; 217(4): iyab014. PMID: 33693628.