Search Strains

dvIs19 [gst-4p::GFP::NLS] III. rexEx13 [hsp-16p::HA::wdr-23::halo + mec-7p::mRFP]. Pick RFP+ worms to maintain. Constitutive red fluorescence in touch-receptor neurons. Heat shock induces expression of HA::WDR23::Halo protein. Oxidative stress induces expression of GFP.

ahcy-1(syb748) is a CRISPR/Cas9-engineered C280A substitution that eliminates electrophile sensing but retains enzymatic activity.

sqIs13 [lgg-1p::GFP::lgg-1 + odr-1p::RFP]. Pick RFP+/GFP+ animals to maintain. GFP fluorescence in autophagosomes. RFP fluorescence in AWB and AWC. ahcy-1(syb748) is a CRISPR/Cas9-engineered C280A substitution that eliminates electrophile sensing but retains enzymatic activity.

rexEx4 [myo-2p::mCherry::P2A::Flag::UltraID::unc-54 3'UTR]. Pick mCherry+ to maintain. Mosaic expression of red fluorescence (mCherry) in pharynx. P2A is the self-cleaving peptide sequence.

rexEx5 [ges-1p::mCherry::P2A::Flag::UltraID::unc-54 3'UTR]. Pick mCherry+ to maintain. Mosaic expression of red fluorescence (mCherry) in the intestine. P2A is the self-cleaving peptide sequence.

rexEx6 [myo-3p::mCherry::P2A::Flag::UltraID::unc-54 3'UTR]. Pick mCherry+ to maintain. Mosaic expression of red fluorescence (mCherry) in body-wall muscle; punctate mCherry signals in some animals. P2A is the self-cleaving peptide sequence.

Inversion which may serve as a balancer for the center of LG V. Maternal effect lethal allele which results in 57% embryonic arrest, 40% larval arrest, and 3% which survive to be fertile adults with a variety of defects including Egl, Unc and Vab.

juSi94 [GFP11::rps-18 + Cbr-unc-119(+)] II. Superficially wild-type. No fluorescence; carries only one portion of a split GFP reporter for visualization of ribosomes. Allows inducible GFP fluorescence of ribosomes when combined with GFP1-10 expression in tissue of choice. Reference: Noma et al Elife. 2017 Aug 2;6. pii: e26376. doi: 10.7554/eLife.26376.

juSi94 [GFP11::rps-18 + Cbr-unc-119(+)] II. juEx5377 [myo-3p::GFP1-10 + ttx-3p::RFP]. Pick ttx-3::RFP to maintain. Muscle-specific expression of split GFP reporter allows visualization of ribosomes in muscle. Reference: Noma et al Elife. 2017 Aug 2;6. pii: e26376. doi: 10.7554/eLife.26376.

Homozygous viable Reference: Noma et al Elife. 2017 Aug 2;6. pii: e26376. doi: 10.7554/eLife.26376.

juSi94 [GFP11::rps-18 + Cbr-unc-119(+)] II. juEx5515 [unc-25p::GFP1-10 + unc-25p::mCherry::rab-3 + ttx-3p::RFP]. Pick ttx-3::RFP to maintain. GABAergic motor neuron-specific expression of split GFP reporter allows visualization of ribosomes in neurons, and GABAergic motor neuron-specific expression of mCherry::rab-3. Reference: Noma et al Elife. 2017 Aug 2;6. pii: e26376. doi: 10.7554/eLife.26376.

juSi123 [rpl-29::GFP] II. Strong GFP signal allowing visualization of ribosomes. GFP inserted at C-terminus of RPL-29. Reference: Noma et al Elife. 2017 Aug 2;6. pii: e26376. doi: 10.7554/eLife.26376.

Egl. Coiler when moving backwards. Recessive. F35D2.5

juSi94 [GFP11::rps-18 + Cbr-unc-119(+)] II. juIs409 [rgef-1p::GFP1-10 + ttx-3p::RFP] IV. Pan-neuronal-specific expression of split GFP reporter allows visualization of ribosomes in neurons. Reference: Noma et al Elife. 2017 Aug 2;6. pii: e26376. doi: 10.7554/eLife.26376.

juSi94 [GFP11::rps-18 + Cbr-unc-119(+)] II. juIs463 [flp-13p::GFP1-10 + ttx-3p::RFP]. DD motor neuron-specific expression of split GFP reporter allows visualization of ribosomes in those neurons. Reference: Noma et al Elife. 2017 Aug 2;6. pii: e26376. doi: 10.7554/eLife.26376.

Gain-of-function allele isolated sem-4; juIs1 screen in 1997. ju89 has slightly semi-dominant effects, and the gf phenotype is most obvious in homozygous. This outcrossed strain does not carry a sem-4 mutation or juIs1. References: Kurup N, et al. Curr Biol. 2015 Jun 15;25(12):1594-605. Kurup N, et al. PLoS Genet. 2017 Jun 21;13(6):e1006844.

juSi164 [mex-5p::HIS-72::miniSOG + Cbr-unc-119(+)] III. Maintain in the covered box to avoid unnecessary exposure to ambient light. Wild-type behavior in movement, mating, growth and brood size. Upon blue light treatment (460 nm LED light for 30 min at 4 Hz with 2 mW/mm2), Histone-miniSOG in the germline can induce heritable mutations. Wild-type behavior in movement, mating, growth and brood size. MosSCI insertion into oxTi444 on Chr. III. Reference: Noma K & Jin Y. Nature Communications, 2015.

bx80 was previously called mab-26(bx80): Extensive ray fusion involving all 9 rays; Larva have Vab phenotype with decreasing expressivity in adult; Hermaphrodites have swollen tail and anus. Vab, embryonic ventral enclosure defects, male ray fusions. Slow growth.

juEx7103 [unc-17p(beta)::PH::miniSOG(Q103L) + acr-2p::mCherry + ttx-3::RFP]. Pick RFP+ to maintain. Expression of mCherry and PH-miniSOG (mini Singlet Oxygen Generator) in cholinergic motor neurons. Reference: Xu S & Chisholm AD. Sci Rep. 2016 Feb 10;6:21271. [NOTE: strain was previously described as carrying ttx-3::GFP, but appears to be ttx-3::RFP instead.]

muIs32 [mec-7p::GFP + lin-15(+)]. Homozygous viable. Reference: Kim KW, et al. Elife. 2018 Nov 21;7:e39756. doi: 10.7554/eLife.39756. PMID: 30461420

muIs32 [mec-7p::GFP + lin-15(+)]. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP nmat-2(ju1514) homozygotes (sterile adults). Homozygous hT2[bli-4 let-? qIs48] inviable. Pick WT GFP and check for correct segregation of progeny to maintain. Reference: Kim KW, et al. Elife. 2018 Nov 21;7:e39756. doi: 10.7554/eLife.39756. PMID: 30461420

Temperature sensitive sterility: maintain at 15-20C. prg-1(ju1574) mutant animals become sterile at the fifth generation grown at 25C. prg-1(ju1574) contains two mutations in the PIWI domain active site (RNaseH/slicer) [D583A, Y585A]. Mutation of the first conserved aspartate of the catalytic triad (D-D-H motif) to alanine (D583A) created an A-D-H motif which abolishes slicer activity in Argonaute proteins. WT: [GTCGGCTACGATCTGTACCACGACTCGACATTGAAAGGAAAAACT --> VGYDLYHDSTLKGKT] ju1574: [GTCGGCTACGcgCTGgctCAtGAtTCGACATTGAAAGGAAAAACT --> CGYALAHDSTLKGKT] Forward genotyping primer: GTAATGCTCGCTGACGACAA Reverse genotyping primer: TTGACGAACTGTGGAACCAA Reference: Kim KW, et al. Neuron. 2018 Feb 7;97(3):511-519.e6. doi: 10.1016/j.neuron.2018.01.014.

Endogenous dlk-1 locus tagged with GFP using CRISPR/Cas9. GFP is not visible under compound fluorescence microscope. Reference: Sun Y, et al. Proc Natl Acad Sci U S A. 2023 Sep 26;120(39):e2302801120. doi: 10.1073/pnas.2302801120. PMID: 37722038.

vab-2(ju1) has embryonic lethality (12%) and notched heads (about 40%). vab-2(ju1) is considered a null allele (W30opal), and was previously called efn-1. Vab, embryonic ventral enclosure defects, male ray fusions.

Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested nT1[qIs51] aneuploids, and non-GFP micu-1 homozygotes. Homozygous nT1[qIs51] inviable. Pick WT GFP and check for correct segregation of progeny to maintain. Reference: Tang NH, et al. Curr Biol. 2020 Jan 15. pii: S0960-9822(19)31694-X. doi: 10.1016/j.cub.2019.12.061.

jsIs973 [mec-7p::mRFP + unc-119(+)] III. Strong RFP cytosolic marker for the mechanosensory neurons. ju1903 deletion removes N-terminus of EFA-6 and disrupts all known isoforms. No visible GFP::EFA-6 due to ju1903 deletion. Reference: Sandhu A., et al. Cell Reports 2024 Oct 22;43(10):114776. doi: 10.1016/j.celrep.2024.114776. PMID: 39305484.

Endogenous efa-6 locus tagged with GFP using CRISPR/Cas9. GFP is visible under compound fluorescence microscope. Reference: Sandhu A., et al. Cell Reports 2024 Oct 22;43(10):114776. doi: 10.1016/j.celrep.2024.114776. PMID: 39305484.

juIs223 [ttr-39p::mCherry + ttx-3p::GFP] IV. Transcriptional reporter with ttr-39 promoter driving mCherry expression in DD and VD neurons. Reference: Jospin M, et al. PLoS Biol. 2009 Dec;7(12):e1000265.

adEx1750 [pmk-3::GFP + rol-6(su1006)]. Pick Rollers to maintain. Nuclear GFP in anterior and posterior intestine. [NOTE: adEx1750 contains a F42G8.4::GFP reporter construct. This array had been previously described as carrying a pmk-1::GFP reporter; the description of the array was updated in CGC records ~2016. islo-1, pmk-3, pmk-2, and pmk-1 are in an operon. The order of genes was described in Berman et al. as [pmk-1(F42G8.4)->pmk-2(F42G8.3)->pmk-3(B0218.3)], but the official WormBase gene names were assigned in reverse order [pmk-1(B0218.3)->pmk-2(F42G8.3)->pmk-3(F42G8.4)]. See Berman K, et al. Mol Cell Biol Res Commun. 2001 Nov;4(6):337-44. PMID: 11703092 for additional information.]

Bacteria. Str-R. L10 papilla 2; sporulation-defective mutant. This is a low-quality food that is difficult for the worms to eat, and is useful for studies of the effect of food on behavior, physiology, etc. [NOTE: This strain grows better on NGM than on LB media in CGC.] Described in J Exp Biol 206: 2441-2457. Biosafety Level: BSL-1.

Misshapen pharynx; worms hatch with pharynx of correct gross shape, but disorganized, with nuclei misplaced. Most homozygotes arrest in L1, escapers grow up to become very starved adults with deformed pharynges with abnormally small terminal bulb, thick nucleated isthmus. Weakly cold sensitive. Makes dauers that don't recover; doesn't survive freezing well.

Abnormal feeding. Falls asleep. Does not feed while asleep. Semidominant. Previously called eat-7.

Abnormal feeding. Slippery Corpus. Long. Slight coiler Unc. gpb-2(ad541) previously called eat-11(ad541).

Blistered. Grinder cannot come to full forward position. Protruding spicules in males; males don't mate. adDf538 previously called phm-2(ad538).

Muv. ad450 worms, when undisturbed, fall asleep. While asleep they do not move or pump. Disturbing them wakes them up, and while awake they act fairly normal. ad450 previously called eat-7.

Abnormal feeding. Relaxation defective. Smallish. Males don't mate. Semidominant. Previously called eat-12. See also WBPaper00002912.

Note: ad702 was isolated in an RC301 background. DA702 was not tested for the presence of npr-1(g320) following three rounds of outcrossing to N2 Bristol. DA702 does not display clumping behavior, so it's likely that DA702 has the Bristol npr-1. New stock rec'd 10/13/99.

Eat mutant. Stuffs corpus and isthmus. Abnormality in m6 and m7 contraction timing. Displays clumping behavior; isolated in an RC301 background, so it's likely to have the RC301 bor-1 mutation.

Grinder cannot come to full forward position. Protruding spicules in males; males don't mate. Unc. adDf538 previously called phm-2(ad538).

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

ad810 is homozygous lethal. ad810/+ is Egl and it suppresses gpb-2. gpb-2 phenotype is rather subtle: they are slightly starved, slightly longer than normal, and tend to be loopy in their movements (they make abnormally deep bends). Hets should be Egl and non-Eat. On most E. coli strains gpb-2 grows rather poorly, especially if the plates are older so that there is a thick and tough lawn. On such plates there will be a lot of gpb-2 larval arrest, and those that don't arrest will grow slowly. The hets should easily outgrow the gpb-2 homozygotes. [gpb-2 is also hypersensitive to the drug arecoline: they won't grow on 5 mM. The hets will grow even better than WT on 5 mM arecoline.] gpb-2(ad541) previously called eat-11(ad541).

Suppressor of gpb-2 (a.k.a. eat-11) arecoline hypersensitivity. Unc. Egl.

Roller. Unc. Vulvaless. Throws males. sc8 previously called rol-4(sc8).

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.

domIs355 [mec?3p::QF + mec?4p::QS + QUAS::CoChR::GFP + unc122p::RFP]. High sensitivity blue-light optogenetic line for FLP neurons. Transgenic animals expressing the high-sensitivity blue light-activated channelrhodopsin CoChR into FLP using the Q-system combining mec-3p and mec-4p promoters. In animals grown on all trans-retinal-containing medium, low intensity blue light stimuli trigger reversal responses. Animals have red coelomocytes. The transgene was integrated with UV, and outcrossed 2x to parental ce314 mutant strain KG1180. 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.

Bah (biofilm absent on head - resistant to attachment of Yersinia sp. biofilms). Fragile cuticle (mild): increased sensitivity to alkaline-hypochlorite.

Heterozygotes are WT and GFP+ in the pharynx. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Presence of ces-1 is inferred from strain construction but not experimentally verified. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype.

Bah (biofilm absent on head - resistant to attachment of Yersinia sp. biofilms). Fragile cuticle (mild): increased sensitivity to alkaline-hypochlorite.