Search Strains

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.

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.

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).

C. elegans wild isolate. Isolated in Merlet, Lagorce (Ardche), France on September 8, 2002 in the 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).

C. elegans wild isolate. Isolated in Merlet, Lagorce (Ardche), France on September 8, 2002 in the 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).

C. elegans wild isolate. Isolated in Merlet, Lagorce (Ardche), France on September 8, 2002. Snails resembling Helix, under a tree full of ivy. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

C. elegans wild isolate. Isolated in Merlet, Lagorce (Ardche), France on September 8, 2002 from soil under a tree full of ivy. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

C. elegans wild isolate. Isolated in Merlet, Lagorce (Ardche), France on September 8, 2002 from soil under a tree full of ivy. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

C. elegans wild isolate. Isolated in Merlet, Lagorce (Ardche), France on September 8, 2002 from soil under a tree full of ivy. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Isolated on Sept 8, 2002, from a Helix snail on the trunk of a mulberry tree in Merlet, Lagorce (Ardeche), France. See Barriere & Felix, Current Biology 2005 (sample Merlet 2). For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

C. elegans wild isolate. Isolated in Merlet, Lagorce (Ardche), France on September 8, 2002 from a Helix (?) snail #3 on the trunk of a mulberry tree (not the same snail as JU322). For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Male-female species. Maintain at 20C or warmer. Elegans group. Isolated from rotting stems of banana family (Musaceae) sampled on 5 March 2018 in Pugao Laozhai village, Yuanyang, Yunnan, China. 23.0854, 102.7993. Reference: Felix et al., in preparation.

Male-female strain. Isolated on May 13, 2005 in Zhouzhuang, Jiangsu, China from soil in cultivated fields (beans, cereal) at the SW entrance of the village.

Isolated on May 4, 2005 from mushroom compost in a farmyard 1 km south of Yangshuo, Guangxi, China. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Isolated on May 6, 2005 from soil with freshly added compost in a cabbage field in Chengyang Village, 20 km north of Sanjiang, Guangxi, China. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Male-female strain. Isolated on May 6, 2005 under a tree along a path between two villages in Changyang, 20 km north of Sanjiang, Guangxi, China. Does not cross with C. remanei PB4641 or JU724, nor with C. sp. PB2801. sp. 5 in Kiontke and Sudhaus Wormbook Ecology chapter.

Isolated from the compost heap at the top of the garden in Frechendets (Hautes Pyrénées), on August 31, 2005. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Male-female strain. Inbred derivative of JU727. Derived from JU727 by 20 generations of sib mating. Male/female strain. Isolated on May 6, 2005 under a tree along a path between two villages in Changyang, 20 km north of Sanjiang, Guangxi, China. Does not cross with C. remanei PB4641 or JU724, nor with C. sp. PB2801. sp. 5 in Kiontke and Sudhaus Wormbook Ecology chapter.

Compost heap of Ray Hong in Tübingen, Germany, 28 Sep 05. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

jrIs2 [rpl-17p::Grx1-roGFP2 + unc-119(+)]. Stable transgene ubiquituously expressing the roGFP2 sensor under a ribosomal promoter for in vivo estimation of GSSG/2GSH ratios. Reference: Back P, et al. Free Radic Biol Med. 2012 Mar 1;52(5):850-9.

WT movement. Various degrees of embryonic lethality and Egl. About 1% Roll after L4.

je5 is a dominant suppressor of unc-73(e936). WT movement. Various degrees of embryonic lethality and Egl. About 1% Roller after L4.

je6 is a dominant suppressor of unc-73(e936). WT movement. Various degrees of embryonic lethality and Egl. About 1% Roller after L4.

mMaple tag inserted at the C-terminus of the endogenous car-1 locus. Reference: Bhatia P, et al. Life Sci Alliance. 2025 May 29;8(8):e202503387. doi: 10.26508/lsa.202503387. PMID: 40441896.

mMaple tag inserted at the C-terminus of the endogenous ifet-1 locus. Reference: Bhatia P, et al. Life Sci Alliance. 2025 May 29;8(8):e202503387. doi: 10.26508/lsa.202503387. PMID: 40441896.

Temperature-sensitive. Maintain at 15C. Female worms at 20C; hermaphrodites at 15C. GFP tag inserted at the N-terminus of the endogenous mei-1 locus. Reference: Bhatia P, et al. Life Sci Alliance. 2025 May 29;8(8):e202503387. doi: 10.26508/lsa.202503387. PMID: 40441896.

mScarlet-I::AID*::3xFlag tags inserted at the C-terminus of the endogenous ifet-1 locus. wrdSi3 [sun-1p::TIR1::F2A::mTagBFP2::AID*::NLS::tbb-2 3'UTR] (II:0.77). Germline and early embryo-specific expression of TIR1 co-factor for AID, and tissue-specific AID-tagged blue protein in germline and early embryo nuclei. ifet-1 visualized by mScarlet in oocytes with inducible acute degradation when grown on 4mM auxin. No defect in hermaphrodite embryo viability. Reference: Bhatia P, et al. Life Sci Alliance. 2025 May 29;8(8):e202503387. doi: 10.26508/lsa.202503387. PMID: 40441896.

Downregulation of tph-1::GFP expression in the ADF neurons. CORRECTION: The yz6 allele had been erroneously listed as y26 in our database.

Downregulation of tph-1::GFP expression in the ADF neurons.

Down regulation of tph-1::GFP expression in the ADF neurons.

lkIs1 [elp-1::GFP + lin-15(+)] II. Relatively low levels of GFP expression as compared to KA42. Superficially wild-type. Maintain under normal conditions. Reference: Hueston JL, et al. BMC Dev Biol. 2008 Nov 17;8:110.

lkIs2 [elp-1::GFP + lin-15(+)] IV. Relatively high levels of GFP expression as compared to KA41. Superficially wild-type. Maintain under normal conditions. Reference: Hueston JL, et al. BMC Dev Biol. 2008 Nov 17;8:110.

Triple mutant of the three spinster paralogs expressed exclusively in somatic tissues. Reference: Villalobos TV, et al. Nat Aging. 2023 Sep;3(9):1091-1106. PMID: 37580394.

seaSi40 [(pCFJ448) (eft-3p::fmo-2 + H2B::GFP) + Cbr-unc-119(+)] I. Higher level of FMO-2 over-expression compared to KAE9. Improved healthspan, stress resistance and longevity. Reference: Leiser SF, et al. Science 350.6266 (2015): 1375-8.

seaSi182 [(pCFJ150) (vha-6p::fmo-2 + H2B::GFP) + Cbr-unc-119(+)] II. Over-expression of FMO-2 in the intestine. Long-lived. Reference: Leiser SF, et al. Science 350.6266 (2015): 1375-8.

seaSi39 [(pCFJ448) (eft-3p::fmo-2 + H2B::GFP) + Cbr-unc-119(+)] I. Lower level of FMO-2 over-expression compared to KAE10. Improved healthspan, stress resistance and longevity. Reference: Leiser SF, et al. Science 350.6266 (2015): 1375-8.

otIs672 [rab-3p::NLS:: GCaMP6s + arrd-4p::NLS::GCaMP6s]. See description of strain OH16230 for full description of otIs696 NeuroPAL (Neuronal Polychromatic Atlas of Landmarks) transgene used to resolve unique neural identities in whole-brain images. 2-nonanone avoidance and electrical shock response of KDK94 are more similar to wild-type (N2) than other NeuroPAL strains. Derived by crossing parental strains OH15265 and OH15495. References: Endo Y, et al. J Biosci. 2025:50:52. PMID: 40619772. NeuroPAL reference: Yemini E, et al. Cell. 2021 Jan 7;184(1):272-288.e11. PMID: 33378642.

Defective response to short wavelength light; response strongly reduced but not eliminated. All other characteristics seem wild type, including reponse to mechanosensory stimuli. Strong, probably null, allele. This mutation also blocks the coordinated light response of unc-31(e928) and egl-30(ad805). To identify lite-1 homozygous mutants when crossing into different backgrounds, use a fluorescence stereomicroscope with a GFP filter and zoom to the hightest magnification (60-100X) to distinguish Lite from non-Lite animals. This works best when the animals are mired in thicker parts of the food to slow their spontaneous locomotion but not their response to light. Scan animals around the edge of the food where it is thickest. Leave the lid of the plate off for a minute or so before starting to let the animals adjust to air currents.

Null or nearly null allele. Sluggish locomotion. Slightly short. Egl. Growth rate ~72% of wild-type. Reference: Edwards SL, et al. Genetics May 2013 194:143-161. (See Commentary in same issue 194:35-37).

ceIs56 [unc-129p::ctns-1::mCherry + nlp-21p::Venus + ttx-3p::RFP]; Maps to X: 9.0 +/ 3.0 m.u. Expresses the lysosomal membrane marker CTNS-1 in a subset of 9 DA/DB cholinergic motor neurons in the ventral cord, and NLP-21::Venus in the same neurons as a marker for soluble DCV cargo and to help identify the boundaries of the somas and axons when imaging lysosomes. Reference: Edwards SL, et al. Genetics. 2015 Sep;201(1):91-116. Edwards SL, et al. Genetics. 2015 Sep;201(1):117-41.