Search Strains

sel-8(sa54) is a recessive suppressor of lin-12(n302sd).

Moderate Nrf. Produces pale eggs (Peg) but does not accumulate yolk in pseudo-coelomic space.

sel-7(n1253) is a recessive suppressor of lin-12(n302sd).

Ndg: nordihydroguairetic acid resistant. Nrf: nose resistant to fluoxetine-induced hypercontraction. Pale eggs. Accumulates yolk. Some embryonic lethality. Nonsense mutation W404stop(UGA).

Exp defective. Constipated. May contain a weak daf-2 mutation (sa753). See Ailion and Thomas in Genetics 165: 127-144 2003.

Recessive, loss of function, early stop mutation within the coding sequence makes sa603 a likely null allele. Variable locomotion ranging from lethargic to hyperactive. Eat (pale, scrawny). Loopy movement - increased amplitude of locomotory wave-form (variable). Suppresses the enteric muscle contraction (EMC) defect, the lethargy and egg-laying defects of unc-43(n498).

Recessive. Loss of function. Hyperactive, lays early stage eggs. Suppresses the enteric muscle contraction (EMC) defect, the lethargy and the egg-laying defects of unc-43(n498).

Recessive Daf-c mutation that also causes Odr and Che defects. Maintain at 15C. [The mec-1 mutation present in the original isolates has been eliminated.] Previously known as daf-21.

Defective in enteric muscle contraction (expulsion) step of defecation motor program and egg-laying (severe bloating-Egl Type A: serotonin and imipramine resistant). Enteric and egg-laying muscle structures are normal. Semi-dominant for Egl defect, but not for constipation defect. n2372/+ : ME3. ES3: adult heterozygotes and homozygotes.

Lon. Daf-d. Suppresses Daf-c phenotype of daf-19(m86). Dyf.

Defective in enteric muscle contraction (expulsion) step of defecation motor program and egg-laying (severe bloating- Egl Type A). Enteric and egg-laying muscle birefringence normal. Semi-dominant: n2373/+ is moderately Egl but not constipated. ME3 : n2373/+. ES3: adult homozygotes. ES2: heterozygotes.

Daf-c at 27C. Weakly Egl and Clumpy. Maintain at 15C.

Recessive, early stop mutation within the coding sequence (C to T substitution in aa52) makes sa734 a likely null allele. May grow slightly better at 15C. Hyperactive, lays early stage eggs, increased amplitude of locomotort wave-form. Suppresses the lethargy and egg-laying defects of unc-43(n498). Reverses direction of locomotion more frequently than WT.

Recessive. Loss of function. Hyperactive, lays early stage eggs. Suppresses both the lethargy and egg-laying defect of unc-43(n498).

Daf-c at 25C. Egl, Clumpy, Lon, low brood size. Dauers do not recover when moved to 15C in the presence of food. Daf-c, Lon, Clumpy and fertility defects can be rescued maternally. Maintain at 15C.

ieSi57 [eft-3p::TIR1::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. Endogenous hsf-1 tagged with the auxin-inducible-degron (AID*) and GFP allows depletion of endogenous HSF-1 in the somatic tissues upon auxin treatment. Animals treated with 1mM of auxin when eggs are laid will arrest in L1 or L2 stage. Reference: Edwards SL, et al. Cell Rep. 2021 Aug 31;36(9):109623. PMID2021 Aug 31;36(9):109623. PMID: 34469721

CRISPR-engineered KO strain of haps-1 made by knock-in of tandem stop codons to the first exon of endogenous haps-1 locus. haps-1(C48B6.3) is the C. elegans ortholog of human HAPSTR1. haps-1(ljt1) is superficially wild-type when cultured at 20C, but is hypersensitive to paraquat (redox stress), MLN4924 (neddylation inhibition), and camptothecin (genotoxic stress). Reference: Amici DR, et al. Proc Natl Acad Sci U S A. 2022 Jul 5;119(27):e2111262119. doi: 10.1073/pnas.2111262119. PMID: 35776542.

Male-female strain. Isolated by Marie-Anne Felix from decomposing fruit and vegetables sampled on March 11, 2007, in small vegetable gardens in Okazaki (East of Nagoya), Aichi Prefecture, Japan. Isofemale line. Maintain by mating.

Isolated by Marie-Anne Felix from leaf litter/bark/soil sampled on March 14, 2007, in the woods behind the parking lot of the Kacho-en aviary in Kakegawa, Shizuoka prefecture, Japan (ca. 100 m from the aviary and 200 m from the vegetable gardens). For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Male-female strain. Isolated by Marie-Anne Felix from leaf litter/bark/soil sampled on March 14, 2007, in the woods behind the parking lot of the Kacho-en aviary in Kakegawa, Shizuoka prefecture, Japan (ca. 100 m from the aviary and 200 m from the vegetable gardens). Isofemale line. Maintain by mating.

Male-female strain. Isolated by Marie-Anne Felix from leaf litter/bark/soil sampled on March 18, 2007, in the Botanical Gardens of the University of Tokyo in Tokyo, Japan. Isofemale line. Maintain by mating.

Caenorhabditis elegans wild isolate. Isolated from a compost sample collected in April 2007 in Concepcion, Chile, in the Palomares area, 2 km NE of the town. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Isolated from a sample of soil (compost) in a pot with rotting tomatoes collected in April 2007 in Concepcion, Chile, in the Villuco area, 3 km SE of the town. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Male-female strain. mfEx34 [Cel-sid-2 + Cel-myo-2::DsRed]. Made by injection of PB4641 with a PCR product of the Cel-sid-2 gene and a myo-2::DsRed plasmid. Sensitive to RNAi by feeding.

Caenorhabditis sp. 7 Male-female strain. Isolated by Marie-Anne Felix from rotting citrus fruit sampled by M. Herrmann in Begoro, Ghana in June 2007. New male-female species of the elegans group. Does not produce cross-progeny with any of the other previous elegans group species. Isofemale line. Maintain by mating.

Caenorhabditis sinica wild isolate. Caenorhabditis sp. 5 Male-female strain. Isolated from a small fruit found in the Garden of Harmony in Suzhou, China, on August 17, 2007.

Caenorhabditis sp. 7 Male-female strain. Caenorhabditis sp. 7 is currently an undescribed species. The sequenced strain, JU1286, is an isogenic inbred line derived from strain JU1199 by 20 consecutive matings of 1 virgin female and 1 male. The inbreeding was done by Marie-Anne Felix. Strain JU1199 was isolated in June 2007 by Matthias Herrmann from a rotting citrus fruit in Begoro, Ghana, Africa. C. sp. 7 is a gonochoristic species with about equal proportions of males and females.

Caenorhabditis sp. 9 Male-female strain. Isolated from rotting flowers and leaves sampled in the Zoo/Botanical Garden of Trivandrum, Kerala, India on 21 Dec 2007. Culture at 20°C or above. Reference: Félix, Braendle & Cutter, 2014

Hermaphrodite. Isolated by MAF from rotting small red fruits (same as JU1342) and bark in the forest near the top of the mountain in Ponmudi, Kerala, India on 22 Dec 2007 (ca. 20 m from JU1340). For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Hermaphrodite. Isolated by MAF from dark brown "fruits" (1x1.5 cm) on fallen tree trunk in the forest near the top of the mountain in Ponmudi, Kerala, India on 22 Dec 2007. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Hermaphrodite. Isolated by MAF from a mix of rotting fruits, leaf litter, soil, bark, flowers, etc. sampled in a ca. 3 km wide area in Periyar Natural Preserve, Kerala, India on 28 Dec 2007. Isolated from a plate containing a rotting fruit similar to that of sample #46 - JU1361/2). For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Caenorhabditis sp. 11 Isolated by Marie-Anne Felix from rotting torch ginger (Etlingeria elatior) flowers sampled in the island of La Réunion by Valérie Robert and Loïc Sablé in Jan 2008. Hermaphrodite. Culture at 20°C or above. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Isolated from rotting orange fruits, Garden Catalina de Ribera, Sevilla, Spain sampled on 29 Mar 08 by MAF. Not bleached. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Isolated from Rumina decollata snail #4, sampled in front of the Parador of Carmona, Spain on 31 Mar 08 by MAF. Plated 3 Apr 08. Isolated as adult on 9 Apr 08. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Caenorhabditis sp. 9 Male-female strain. Derived by 25 rounds of inbreeding (1 virgin female + 1 male) from JU1325, isolated from rotting flowers and leaves sampled in the Zoo/Botanical Garden of Trivandrum, Kerala, India on 21 Dec 2007. Culture at 20°C or above.

Isolated from rotting palm fruit sampled by MAF on 9 June 2008 in the Park Guëll, Barcelona, Spain. Picked as young adult on 11 June 2008. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Caenorhabditis sp. 7 Male-female strain. Isolated from leaf litter near pond edge, sampled by J. and G. Hatty on 29 Nov 08 near Shonga, Nigeria.

Caenorhabditis sp. 17. Maintain at 23C. Isolated from rotten wide bean of Barokia sp. sampled on Grand Plateau in Nouragues Forest, French Guiana, on 21 Nov 2009. Reference: Félix, Braendle & Cutter, 2014

Caenorhabditis sp. 16 25X inbred derivative of JU1873. Use for genome sequencing.

Caenorhabditis sp. 13 Male-female strain. Inbred derivative of JU1528. Derived by sib mating (1 virgin female + 1 male) for 25 generations.

mfIs70 [lin-31p::rde-1 + myo2p::GFP]. mfIs70 is a spontaneous integration in LG IV. Superficially wild-type. This strain can be used for Pn.p-specific RNAi. Reference: Barkoulas et al. (2013) Developmental Cell Jan 14;24(1):64-75

Caenorhabditis sp. 17 Male-female strain. Isogenic wild type line derived from JU1825. 28 rounds of sib mating with virgin females. Use as reference.

Caenorhabditis sp. 18 Male-female strain. Isogenic wild type line derived from JU1857. 25 rounds of sib mating with virgin females.

Isolated by M.-A. Félix from rotting fruits of Calophyllum inophyllum (red mahogany) sampled in the Jozani National Forest, Zanzibar, Tanzania (6.2715°S, 39.416°E), on 3/9/2012. Previously known as Caenorhabditis sp. 26.

Male-Female strain. 26 rounds of sib mating (L4 female) of JU2161. Healthy. Use for genome sequencing. Previously known as Caenorhabditis sp. 26.

Male-female strain. Inbred line derived from JU2469 by 25 rounds of brother-sister mating using a L4 female larva and a male. Healthy. Use for genome sequencing. Previously known as Caenorhabditis sp. 31.

Inbred line derived from SB454 by 25 rounds of brother-sister mating using a L4 female larva and a male. Healthy. Use for genomic sequencing. Previously known as Caenorhabditis sp. 32.

Inbred line derived from JU2745 by 25 rounds of brother-sister mating using a L4 female larva and a male. Used for DNA/RNA sequencing. Previously known as Caenorhabditis sp. 38.

Inbred line derived from JU2774 by 25 rounds of brother-sister mating using a L4 female larva and a male. Used for DNA/RNA sequencing. Previously known as Caenorhabditis sp. 40.

Isolated by Marie-Anne Felix. Merlet, Lagorce (Ardeche), France, on September 8, 2002, in wash from snail tube - snails coming from under a tree full of ivy. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).