Search Strains

Homozygous viable. Modification of endogenous erm-1 locus mimics ERM-1(T544) phosphorylation. Variant affects ERM-1 localization and dynamics. Reduced brood size, increased embryonic and larval lethality. Reference: Ramalho JJ, et al. Development. 2020 Jul 22;147(14):dev188011. PMID: 32586975

Homozygous viable. Modification of endogenous erm-1 locus mimics non-phosphorylated ERM-1(T544). Variant affects ERM-1 localization and dynamics. Reduced brood size, increased embryonic and larval lethality. Reference: Ramalho JJ, et al. Development. 2020 Jul 22;147(14):dev188011. PMID: 32586975

Homozygous viable. Endogenous erm-1 locus tagged with eGFP and modified to mimic ERM-1(T544) phosphorylation. Variant affects ERM-1 localization and dynamics. Reduced brood size, increased embryonic and larval lethality. eGFP-tagged ERM-1 is not fully functional: animals have a reduced brood size and incomplete outgrowth of the excretory canal, but show no other developmental or morphological abnormalities. The penetrance of intestinal phenotypes is slightly higher than in untagged T544 mutants, presumably owing to a detrimental influence of the COOH-terminal GFP tag. Reference: Ramalho JJ, et al. Development. 2020 Jul 22;147(14):dev188011. PMID: 32586975

Homozygous viable. Endogenous erm-1 locus tagged with eGFP and modified to mimic non-phosphorylated ERM-1(T544). Variant affects ERM-1 localization and dynamics. Reduced brood size, increased embryonic and larval lethality. eGFP-tagged ERM-1 is not fully functional: animals have a reduced brood size and incomplete outgrowth of the excretory canal, but show no other developmental or morphological abnormalities. The penetrance of intestinal phenotypes is slightly higher than in untagged T544 mutants, presumably owing to a detrimental influence of the COOH-terminal GFP tag. Reference: Ramalho JJ, et al. Development. 2020 Jul 22;147(14):dev188011. PMID: 32586975

hmIs4 [des-2::GFP + rol-6(su1006)]. Dpy Rollers. eff-1(ok1021) was outcrossed 6 times. PVD neurons are hyperbranched and have disorganized menorah structures. Shows reduced sensitivity to strong mechanical stimuli. eff-1(ok1021) is a null allele and has strong arborization and cell fusion defects. Pick rollers to maintain. Reference: Oren-Suissa M, et al. Science. 2010 Jun 4;328(5983):1285-8.

A 1.2 kb deletion in aff-1 (C44B7.3) which introduce stop codon after alanine 47. AFF-1 is a type I membrane protein necessary and sufficient for specific cell fusion events during embryonic and larval development. Temperature sensitivity was not detected. At 20° the fusion of hyp5 in the embryo does not occur as well as anchor cell (AC) fusion, vulval cells fusion of the A and D rings and the terminal fusion between the seam cells late in L4. 6% L1 rod-like lethal and 0% embryonic lethal. Adults are completely Egl, and partially Unc, Pvl. In addition, only 2% of AC in the mutant worms undergo fusion. These animals give very low brood size (16 progeny per worm) and 3.4% of the worms are sterile. This strain gives very small brood size and hence grows slowly. Originally from Shohei Mitani, Tokyo Women's Medical College, Tokyo, Japan.

Temperature sensitive. Cell fusion-defective embryos, larvae and adults at 25C. Cell fusion defects are less penetrant at 15C. Egl, Unv, Pvl, Dpy and 2% Muv at 20C and 25C. Mutants have body morphological defects and bulged tails at all temperatures, male tails are leptoderan. Partial sterility of hermaphrodites: brood size is 48 at 25C. sd-4%. ME=0. ES=3. OA-1 (oj55: complete embryonic and partial post-embryonic epithelial fusion failure). Cloned: encodes a type-I membrane glycoprotein with a single TM domain.

jcIs1 [ajm-1::GFP + unc-29(+) + rol-6(su1006)] IV. Temperature sensitive. Cell fusion-defective embryos, larvae and adults at 25C. Cell fusion defects are less penetrant at 15C. Egl, Unv, Pvl, Dpy and 2% Muv at 20C and 25C. Mutants have body morphological defects and bulged tails at all temperature, male tails are leptoderan. Partial sterility of hermaphrodites: brood size is 48 at 25C. ME=0. Cloned: ORF C26D10.5 encodes a type-I membrane glycoprotein with a single TM domain. ajm-1 was formerly known as jam-1 (Junction Associated Protein) and "the gene encoding the antigen recognized by the monoclonal antibody MH27." jcIs1 consists of pJS191, C45D3 and pRF4. Reference: Mohler WA, et al. Curr Biol. 1998 Sep 24;8(19):1087-90.

jcIs1 [ajm-1::GFP + unc-29(+) + rol-6(su1006)] IV. ngEx1[ceh-16::GFP]. ngEx1 rescues ceh-16(lg16) lethality. ajm-1 was formerly known as jam-1 (Junction Associated Protein) and "the gene encoding the antigen recognized by the monoclonal antibody MH27." jcIs1 consists of pJS191, C45D3 and pRF4. Reference: Cassata et al. Development. 2005 Feb;132(4):739-49.

eGFP tag inserted into the endogenous endu-2 locus. Reference: Qi W, et al. (2020) A secreted endoribonuclease ENDU-2 from the soma protects germline immortality in C. elegans. BioRxiv. doi: 10.1101/2020.12.04.408260. Accepted by Nature Communications.

byEx1375 [endu-2p::endu-2::eGFP + myo-2p::mCherry]. Pick mCherry+ animals to maintain array. Transgene rescues mortal germline (Mrt) phenotype of endu-2(tm4977). Reference: Qi W, et al. (2020) A secreted endoribonuclease ENDU-2 from the soma protects germline immortality in C. elegans. BioRxiv. doi: 10.1101/2020.12.04.408260. Accepted by Nature Communications.

byEx1551 [vha-6p::endu-2::eGFP::3xFLAG + myo-2p::mCherry]. Pick mCherry+ animals to maintain array. Transgene provides intestinal rescue of endu-2(tm4977) that also rescues mortal germline (Mrt) phenotype. Reference: Qi W, et al. (2020) A secreted endoribonuclease ENDU-2 from the soma protects germline immortality in C. elegans. BioRxiv. doi: 10.1101/2020.12.04.408260. Accepted by Nature Communications.

byEx1795 [unc-119p::endu-2::eGFP::3xFlag + rol-6(su1006)]. Pick Rollers to maintain. Transgene provides neuronal rescue of endu-2(tm4977) that also rescues mortal germline (Mrt) phenotype. Reference: Qi W, et al. (2020) A secreted endoribonuclease ENDU-2 from the soma protects germline immortality in C. elegans. BioRxiv. doi: 10.1101/2020.12.04.408260. Accepted by Nature Communications.

ozEx76 [cdk-4p::CDK-4::GFP + sur-5::DsRed)]. Maintain by picking DsRed+. ozEx76 is unstable; strain exhibits high levels of lethality and sterilty. ~10% of progeny are fertile. Reference: Fox PM, et al. Development. 2011 Jun;138(11):2223-34.

Temperature-sensitive allele. Can be grown at 20C with reduced fertility. Defects in pachytene progression, small oocyte formation and Emo are highly penetrant at 25C. ok154 is a null allele; 1504 bp deletion from -156 bp to +1348 bp, removes the start codon. Reference: Proc Natl Acad Sci USA. Das D, et al. 2022 Jan 18;119(3):e2113649119. PMID: 35022236

Mild motility and gonad migration defects. pat-3(kq8041) is an engineered Y804A substitution of the membrane distal tyrosine in the cytoplasmic domain. Reference: Hanna J, et al., microPublication Biology. 10.17912/micropub.biology.000291. https://www.micropublication.org/journals/biology/micropub-biology-000291

Motility and cell (DTC) migration defects. pat-3(kq8042) is an engineered Y804E substitution of the membrane distal tyrosine in the cytoplasmic domain. Reference: Hanna J, et al., microPublication Biology. 10.17912/micropub.biology.000291. https://www.micropublication.org/journals/biology/micropub-biology-000291

Mild motility and cell migration defects. pat-3(kq8043) is an engineered Y804F substitution of the membrane distal tyrosine in the cytoplasmic domain. Reference: Hanna J, et al., microPublication Biology. 10.17912/micropub.biology.000291. https://www.micropublication.org/journals/biology/micropub-biology-000291

WT hermaphrodites that segregate WT, Dpy Steriles and Nob larvae. The Nob phenotype results in 100% lethality. Maintain by picking WT.

Deficient in synthesis of ether-linked lipids. Contains high content of saturated fatty acids. Reference: Shi X, et al. J Lipid Res. 2016 Feb;57(2):265-75.

Reduced fatty acid elongation.

No delta5 fatty acid desaturase activity.

No N3 fatty acid desaturase activity.

Deficient in synthesis of ether-linked lipids. Contains high content of saturated fatty acids. Reference: Shi X, et al. J Lipid Res. 2016 Feb;57(2):265-75.

No delta 12 fatty acid desaturase activity. Slow growing. Unc. Dpy. Cold sensitive - maintain at 20C or higher.

Deficient in synthesis of ether-linked lipids. Contains high content of saturated fatty acids. Reference: Shi X, et al. J Lipid Res. 2016 Feb;57(2):265-75.

Slow growing. Unc. Dpy. No delta6 fatty acid desaturase activity.

This strain is tolerant to acute treatment of ethanol. The severity and incidence of stress-induced tremors are greater than in wild-type. Reference: Jee C, et al. Genes Brain Behav. 2013 Mar;12(2):250-62.

ieSi11 [syp-3p::EmeraldGFP::syp-3::syp-3 3'UTR + Cbr-unc-119(+)] II. ieSi11 was inserted into ttTi5605 II using MosSCI. Expression of GFP::SYP-3 largely complements syp-3(ok758), but some meiotic nondisjunction is detected above the N2 background (85% embryonic viability; ~1% male self-progeny;). GFP::SYP-3 expression is readily detected in spermatocytes and oocytes in the germline, and localizes to the interface between paired homologous chromosomes during most of meiotic prophase. Reference: Rog O, Dernburg AF. Cell Rep. 2015 Mar 10. pii: S2211-1247(15)00178-3.

ieSi21 [sun-1::mRuby] IV. Homozygous animals developed normally, their self-progeny showed reduced viability, and many survivors were males (8%).

Migration defective: pre VC. Variable expressivity. Reverse kinker as adult. L1 moves well. Temperature sensitive. Can be maintained at 20C.

Piggy phenotype (severe Dpy). Growth slow. Poor viability.

Mechanosensory abnormal. Scored with difficulty. Sometimes sensitive in the tail. M-MATING++ 1-10%WT.

Caenorhabditis elegans wild isolate. Apparently identical to N2. Isolated by Carl Johnson in June 1973 in a garden in Altadena, CA. Sample obtained from laboratory of R.E. Russell in October 1980. Sent to CGC in Jan. 1997. Reference WBG 10(2) 140-141. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

WT. Resembles N2. Wild isolate from Altadena, CA. Caenorhabditis elegans wild isolate. Original name = GA2. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

WT. Resembles N2. Natural isolate from Altadena, CA. Caenorhabditis elegans wild isolate. Original name = GA3. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

WT. Resembles N2. Natural isolate from Altadena, CA. Caenorhabditis elegans wild isolate. Original name = GA4. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

WT. Resembles N2. Natural isolate from Altadena, CA. Caenorhabditis elegans wild isolate. Original name = GA5. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

WT. Resembles CB4854 (GA9). Natural isolate from Altadena, CA. Caenorhabditis elegans wild isolate. Original name = GA13. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

WT. Resembles CB4854 (GA9). Natural isolate from Altadena, CA. Caenorhabditis elegans wild isolate. Original name = GA23. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

WT. Resembles CB4853 (GA12). Natural isolate from Pasadena, CA. Caenorhabditis elegans wild isolate. Original name = PA2. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

WT. Resembles CB4857 (Cl2a). Natural isolate from Pasadena, CA. Caenorhabditis elegans wild isolate. Original name = PA3. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Phenotypically wildtype XX hermaphrodite at 20C; poor viability and fertility at 25C. Rare XO animals are hermaphrodite due to suppression of amber mutation e2115 and consequent transformation of XO due to tra-2(e2046) gain-of-function. Reference: Hodgkin & Albertson (1995) PMID: 8647390.

Poorly growing, low self-fertility masculinized XX hermaphrodites. Weak allele of tra-2, partly suppressed to self-fertility by smg (NMD) mutation; permits efficient selection of new feminizing mutations. References: Spence et al. (1990) PMID: 2317869. Zarkower et al. (1994) PMID: 7520378.

Heterozygotes mostly fertile at or below 20C; all sterile at 25C. Progeny are fertile heterozygotes with variable Gon abnormality, e1254 homozygotes (strong Gon, "white patch" phenotype) and eDf18 homozygotes (embryonic lethal). See also WBPaper00003841.

Wild isolate from Palm Canyon, CA. Segregated to remove gro-1(e2400) [CB4512]. Caenorhabditis elegans wild isolate CB gro-1(+) subclone of PaC1 (Tc1 pattern IV). For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Wild isolate from Pasadena, Ca. [Flower bed on CIT campus in summer of 1971 (or 1973??). Wild type phenotype. High copy Tc1. Reference WBG 10(2) 140-141. Caenorhabditis elegans wild isolate. CB subclone of PA1 (Tc1 pattern HCG?). For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Variable phenotypes, slightly dumpy and/or uncoordinated, especially at 25C. Grows poorly at 15C. Low fertility. sup-33(st389) is a weak amber suppressor; e2017 and e138 are amber mutations. Reference: Kondo K, et al. (1990) J Mol Biol. 1990 Sep 5;215(1):7-19.

Wild type-slightly Unc. Tc1 pattern high copy; different from RW7000. Bergerac isolate obtained by S. Brenner from Brun group. Caenorhabditis elegans wild isolate. CB subclone of Bergerac N62 (Tc1 pattern HCB). To obtain ECA243, a sequenced isolate of this wild strain, or other whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Wild type. Low Tc1 copy number; pattern X. [Obtained from Rothamsted by S. Brenner as 'Panagrellus redivivus'. Cross fertile with C. elegans N2.] Caenorhabditis elegans wild isolate. CB subclone of N3 (Tc1 pattern X). For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).