Search Strains

Heterozygotes are Blistered and Eat (terminal bulb relaxation defective). Heterozygotes segregate BliEat, BliEatUnc and dead eggs. ad695 previously called eat-12.

Eat. Relaxation defective. Lib. Cold sensitive.

Abnormal feeding.

Bacteria. E. coli. Str-R. Uracil auxotroph. DA837 is derived from OP50. DA837 is harder for worms to eat than most E. coli strains. Some mild Eat mutant worms are easier to distinguish from WT when grown on DA837 than when grown on other E. coli strains. Biosafety Level: BSL-1.

Unc: amber suppressible. Egl: Lon, slow and floppy.

Unc. Semidominant Eat (TB relaxation defective).

Unc. Semidominant Egl, Lon, Slow and Floppy

Blistered cuticle. Egl-Lon, slow and floppy. Unc.

n582 is Egl, Lon, slow & floppy. Suppressed by ad952, which is semidominant. Strain is slightly Dpy and the pharyngeal bulb occasionally shows delayed relaxation and repolarization.

domEx253 [mec-4p::Chrimson::GFP + unc-122p::RFP]. Pick animals with red fluorescence in coelomocytes to maintain. Red-light optogenetic line for gentle touch receptor neurons (TRN). Transgenic animals expressing the red light-activated channelrhodopsin Chrimson into TRNs using the mec-4 promoter. In animals grown on all trans-retinal-containing medium, red light stimuli trigger behaviors similar to those evoked by gentle touch. Note that very strong blue light stimuli may also activate Chrimson. Reference: Schild LC & Glauser DA. Genetics. 2015 Aug;200(4):1029-34. doi: 10.1534/genetics.115.177956. PMID: 26022242.

domEx261[mec?4p::CoChR::GFP + unc?122p::RFP]. Pick animals with red fluorescence in coelomocytes to maintain. High sensitivity blue-light optogenetic line for gentle touch receptor neurons (TRN). Transgenic animals expressing the high-sensitivity blue light-activated channelrhodopsin CoChR into TRNs using the mec-4 promoter. In animals grown on all trans-retinal-containing medium, low intensity blue light stimuli trigger behaviors similar to those evoked by gentle touch. Reference: Schild LC & Glauser DA. Genetics. 2015 Aug;200(4):1029-34. doi: 10.1534/genetics.115.177956. PMID: 26022242.

Antarctic nematode isolated from Ross Island, Antarctica in 1988. Panagrolaimus sp. DAW1 formerly known as Panagrolaimus davidi or P. davidi CB1. Survives freezing at -80 °C, including extensive intracellular freezing. Reference: Raymond MR, Wharton DA, Marshall CJ (2014) Antarc Sci 26:15-22.

Severe missense mutation. Bus (resistant to M. nematophilum), Bah (resistant to Yersinia biofilm formation), resistant to Leucobacter Verde2, hypersensitive to Leucobacter Verde1, drug and bleach sensitive. Slightly skiddy movement. Useful for drug screening. Reference: Xiong H, et al. Sci Rep. 2017 Aug 29;7(1):9839.

uqIs9 [myo-2p::rho1::tagRFP + tph-1p::GFP]. RHO-1::tagRFP aggregates in pharyngeal muscles. Animals have impaired pharyngeal pumping. Generated in N2 background. References: Huang YC, et al. Elife. 2019 May 3;8. pii: e43059. doi: 10.7554/eLife.43059.

uqIs12 [myo-2p::rho-1::Venus]. RHO-1::VENUS aggregates in pharyngeal muscles. Generated in N2 background. References: Huang YC, et al. Elife. 2019 May 3;8. pii: e43059. doi: 10.7554/eLife.43059.

wyIs45 [ttx-3p::GFP::rab-3 + unc-122p::RFP] X. olaEx603 [rab-3p::cima-1 + unc-122p::GFP]. Maintain by picking animals with GFP expression in coelomocytes. olaEx605 does not rescue AIY presynaptic defects in cima-1(wy84) mutants. Reference: Shao Z, et al. Cell. 2013 Jul 18;154(2):337-50.

wyIs45 [ttx-3p::GFP::rab-3 + unc-122p::RFP] X. olaEx609 [aex-3p::cima-1 + unc-122p::GFP]. Maintain by picking animals with GFP expression in coelomocytes. olaEx609 does not rescue AIY presynaptic defects in cima-1(wy84) mutants. Reference: Shao Z, et al. Cell. 2013 Jul 18;154(2):337-50.

wyIs45 [ttx-3p::GFP::rab-3 + unc-122p::RFP] X. olaEx551 [cima-1p::cima-1 + unc-122p::GFP]. Maintain by picking animals with GFP expression in coelomocytes. olaEx551 rescues AIY presynaptic defects in cima-1(wy84) mutants. Reference: Shao Z, et al. Cell. 2013 Jul 18;154(2):337-50.

wyIs45 [ttx-3p::GFP::rab-3 + unc-122p::RFP] X. olaEx644 [ttx-3p::cima-1 + unc-122p::GFP]. Maintain by picking animals with GFP expression in coelomocytes. olaEx642 does not rescue AIY presynaptic defects in cima-1(wy84) mutants. Reference: Shao Z, et al. Cell. 2013 Jul 18;154(2):337-50.

wyIs45 [ttx-3p::GFP::rab-3 + unc-122p::RFP] X. olaEx647 [hlh-17p::cima-1 + unc-122p::GFP]. Maintain by picking animals with GFP expression in coelomocytes. olaEx647 does not rescue AIY presynaptic defects in cima-1(wy84) mutants. Reference: Shao Z, et al. Cell. 2013 Jul 18;154(2):337-50.

wyIs45 [ttx-3p::GFP::rab-3 + unc-122p::RFP] X. olaEx765 [dpy-7p::cima-1 + unc-122p::GFP]. Maintain by picking animals with GFP expression in coelomocytes. olaEx765 rescues AIY presynaptic defects in cima-1(wy84) mutants. Reference: Shao Z, et al. Cell. 2013 Jul 18;154(2):337-50.

wyIs45 [ttx-3p::GFP::rab-3 + unc-122p::RFP] X. olaEx775 [dpy-4p::cima-1 + unc-122p::GFP]. Maintain by picking animals with GFP expression in coelomocytes. olaEx605 rescues AIY presynaptic defects in cima-1(wy84) mutants. Reference: Shao Z, et al. Cell. 2013 Jul 18;154(2):337-50.

olaEx987 [ttx-3p::mCherry::rab-3 + hlh-17p::CD4::GFP1-10 + ttx-3p::CD4::GFP11 + unc-122p::GFP]. Maintain by picking animals with GFP expression in coelomocytes. olaEx987 labels AIY presynaptic sites with mCherry, and AIY and CEPsh contact with GFP. oleEx987 contains GRASP (GFP Reconstitution Across Synaptic Partners) constructs using two GFP fragments, GFP1-10 and GFP11, that can reconstitute a functional GFP molecule only when they are in close proximity. Reference: Shao Z, et al. Cell. 2013 Jul 18;154(2):337-50.

olaEx1316 [ttx-3p::CD4::GFP11 + glr-3p::CD4::GFP1-10 + ttx-3p::mCherry::rab-3 + unc-122p::GFP]. Maintain by picking animals with GFP expression in coelomocytes. olaEx1316 labels AIY presynaptic sites with mCherry, and AIY and RIA contact with GFP. oleEx1316 contains GRASP (GFP Reconstitution Across Synaptic Partners) constructs using two GFP fragments, GFP1-10 and GFP11, that can reconstitute a functional GFP molecule only when they are in close proximity. Reference: Shao Z, et al. Cell. 2013 Jul 18;154(2):337-50.

wyIs45 [ttx-3p::GFP::rab-3 + unc-122p::RFP] X. olaEx1411 [dpy-7p::egl-15(5A)::HA + unc-122p::GFP]. Maintain by picking animals with GFP expression in coelomocytes. Reference: Shao Z, et al. Cell. 2013 Jul 18;154(2):337-50.

wyIs45 [ttx-3p::GFP::rab-3 + unc-122p::RFP] X. AIY presynaptic maintenance defect at adult stage (synapses appears in asynaptic Zone 3 region). Reference: Shao Z, et al. Cell. 2013 Jul 18;154(2):337-50.

wyIs45 [ttx-3p::GFP::rab-3 + unc-122p::RFP] X. olaEx559 [rol-6p::cima-1 + unc-122p::GFP]. Maintain by picking animals with GFP expression in coelomocytes. olaEx559 rescues AIY presynaptic defects in cima-1(wy84) mutants. Reference: Shao Z, et al. Cell. 2013 Jul 18;154(2):337-50.

dnSi9 [sup-46::GFP::sup-46 3’UTR + Cbr-unc-119(+)] inserted into ttTi5605 on LG II. Strong nuclear-localized GFP expression (expression from dnIs22 is brighter).

Temperature sensitive embryonic lethal. Maintain at 15 C. 6% hatching rate at 25 C. Reference: Johnston et al. (2010) Curr Biol.

oxIs318 [spe-11p::mCherry::histone + unc-119(+)] II. ruIs32 [pie-1p::GFP::histone H2B + unc-119(+)] III. ddIs6 [tbg-1::GFP + unc-119(+)] V. dnIs17 [pie-1p::GFP::hPLCIII?PH domain + unc-119(+)]. Maintain under normal conditions. Pick GFP+ to maintain. Reference: Johnston et al. (2010) Curr Biol.

0006. Rhabditella axei. Male/Female strain. Isolated by W. Sudhaus on July 29, 1979 from a compost heap in Esmoulieres, France. Grown easily on OP50 at 16-25C. See WBG 12(5) 14.

Metarhabditis blumi wild isolate. Formerly known as Rhabditis blumi. Isolated by J.P. Blum in April 1971 in a dung heap near Valencia, Spain. Gonochoristic. Grows well at 16-24C on OP50. Forms dauer larvae on overcrowded and starved plates. Freezes easily with C. elegans protocols with 80% viability.

0013. Pelodera strongyloides. Male/Female strain. See WBG 12(5) 14. Originally came from Sudhaus.

WT strain. Rhabditis (Oscheius) dolichuroides. Isolated by W. Sudhaus in April 1978 from decaying matter in a hole in a tree in Malindi, Kenya. See WBG 12(5) 14. Male/Female strain.

Robin Giblin-Davis MUST be cited in any publication. Isolated by R. Giblin-Davis from the palm weevil Rhynchphorus cruentatus (Curculionidae) in Broward County, Florida. Male/Female strain. See WBG 12(5) 14.

0020. Formerly known as Rhabditis (Rhabditis) myriophila. Taxonomy ID: 281680 Isolated by G. O. Poiner (see Poiner, 1986).

WT strain. Oscheius sp. See WBG 12(5) 14. Male/Female strain. Collected by a Belgian expedition to the Galapagos archipelago. From Gaetan Borgonie, Gent University, Belgium.

Male/Female strain. Pelodera strongyloides. See WBG 12(5) 14. Originally came from Victor Ambros.

NOTE: To freeze this strain, heat shock at 37°C for 1 hr and add CaCl2 2mM in freezing solution.

Formerly known as Rhabditis axei. Isolated by Elie S. Dolgin in 2006 from agricultural soil at Naivasha, Kenya (0º50'S 36º22'E); isolate number NV-SH-2. First frozen by Fitch laboratory 9/5/2006. Gonochoristic. Grows well on NGM plates and OP50 at 20-25C. Freezes easily with C. elegans protocols with 70% viability. DF5097 was verified to be R. axei by intercrossing it with DF5006 and observing that their resulting F1 and F2 hybrid offspring were healthy and fertile. At 33C, DF5097 can live up to three days, although they developmentally arrest as late larvae or young adults, fail to produce offspring, and eventually die; in contrast, DF5006 either dies or arrests as first-stage (L1) larvae. Returning DF5097 to 20C from 33C rescues them from developmental arrest and death, and allows them to become fertile adults; in contrast, when DF5006 L1 larvae are returned to 20C, they sometimes grow to later stage larvae, but never grow to fertile adults. Thus, DF5097 shows clearly superior resistance to heat over DF5006; it shows somewhat greater fertility than DF5098 (which also withstands 33C) after being returned to 20C.

Formerly known as Rhabditis axei. Isolated by Elie S. Dolgin in 2006 from fungus at Limuru, Kenya (1º05'S 36º39'E); isolate number LI-OM-B-1&4. First frozen by Fitch laboratory 9/5/2006. Gonochoristic. Grows well on NGM plates and OP50 at 20-25C. Freezes easily with C. elegans protocols with >20% viability. DF5098 was verified to be R. axei by intercrossing it with DF5006 and observing that their resulting F1 and F2 hybrid offspring were healthy and fertile. At 33C, DF5098 can live for up to three days, although they developmentally arrest as late larvae or young adults, fail to produce offspring, and eventually die; in contrast, DF5006 either dies or arrests as first-stage (L1) larvae. Returning DF5098 to 20C from 33C rescues them from developmental arrest and death, and allows them to become fertile adults; in contrast, when DF5006 L1 larvae are returned to 20C, they sometimes grow to later larvae, but never grow to fertile adults. Thus, DF5098 shows clearly superior resistance to heat over DF5006; it shows somewhat lower fertility than DF5097 (which also withstands 33C) after being returned to 20C.

20x inbred line derived from DF5077. Male-female strain. Heat shock 2.5-3.0 hrs at 30C immediately prior to freezing.

Male-female strain. 20x inbred line derived from TMG13. Heat shock 2.5-3.0 hrs at 30C immediately prior to freezing.

tnIs6 [lim-7::GFP + rol-6(su1006)]. Rollers. lim-7::GFP is expressed in sheath cells (see Hall et al., 1999, Developmental Biology 212: 101-123. Insertion site not mapped.

tnIs5 [lim-7::GFP + rol-6(su1006)]. Rollers. lim-7::GFP is expressed in sheath cells (see Hall et al., 1999, Developmental Biology 212: 101-123. Insertion site not mapped.

Maintain by mating females with males.

Maintain by mating GFP+ females with GFP+ males.

Maintain by mating GFP+ females with GFP+ males.

tnIs13 [pie-1p::vab-1::GFP + unc-119(+)].

tnIs13 [pie-1p::vab-1::GFP + unc-119(+)]. ltIs44 [pie-1p::mCherry::PH(PLC1delta1) + unc-119(+)].