Search Strains

Severing and tagging of the endogenous locus with trans-splicing SL2 and GFP using CRISPR/Cas9. GFP expression in pharynx muscle. Impared pumping behavior, grows slowly. Please contact Ryan Littlefield prior to publishing work using this strain.

Temperature-sensitive. Maintain at 15C. Phenotype dependent upon time of temperature shift: embryonic shift is Let, L3 shift is Spe, adult shift is Emb, additional defects include variations in body size, male tail defects, and paralysis. [NOTE (04/22/13): it appears this strain is carrying an unknown Him mutation.] Reference: Kulkarni M, Smith HE. PLoS Genet. 2008 Jul 18;4(7):e1000131.

zcIs9 [hsp-60::GFP + lin-15(+)]. Stable transgenic line with low basal GFP expression, mainly in the tail, observed from L1 to adult. Induced by perturbations of mitochondrial folding environment.

zcIs13 [hsp-6p::GFP + lin-15(+)]. Stable transgenic line with GFP expression mainly in the tail, observed from L1 to adult. Induced by perturbations of mitochondrial folding environment.

Hermaphrodites are sluggish and exhibit protruding vulva, ruptured vulva, or internally hatched progeny. Males move slower than WT and have disorganized tail rays.

Hermaphrodites are sluggish and exhibit protruding vulva, ruptured vulva, or internally hatched progeny. Males move slower than WT and have disorganized tail rays.

hrtIs3 [des-2p::myr::GFP + unc-122p::DsRed]. hrtEx54 [des-2p::mKate::SpvB + unc-119(+) + lin-48p::tdTomato]. Pick animals with tdTomato expression in the tail to maintain. Myristylated GFP marker for PVD. PVD development is severely affected by low levels of actin-perturbing DeAct-SpvB expression in PVD and FLP. Phenotype is more severe than that of DeAct-GS1 expressing strains STR198 and STR199. Reference: Harterink M, et al. J Cell Sci. 2018 Oct 22;131(20):jcs223107. PMID: 30254025.

Heterozygotes are WT and segregate WT, DpySteriles (qC1 homozygotes) and Sterile Uncs which have a head region that is broader than the tail region and have no postembryonic cell divisions. Previously called ncc-1(n3064).

Heterozygotes are WT and segregate WT, DpySteriles (qC1 homozygotes) and Sterile Uncs which have a head region that is broader than the tail region and have no postembryonic cell divisions. Previously called ncc-1(he24).

he25 is temperature sensitive. At 25C: Heterozygotes are WT and segregate WT, DpySteriles (qC1 homozygotes) and Sterile Uncs which have a head region that is broader than the tail region and have no postembryonic cell divisions. At 15C: Heterozygotes are WT and segregate WT, Dpy Steriles (qC1 homozygotes) and cdk-1 homozygotes which are slightly smaller than WT, complete nearly all cell divisions, are sterile and have less germ cells than N2 (sperm are present but no oocytes). Previously called ncc-1(he25).

Heterozygotes are WT and segregate WT, DpySteriles (qC1 homozygotes) and Sterile Uncs which have a head region that is broader than the tail region and have no postembryonic cell divisions. Previously called ncc-1(he26).

Heterozygotes are WT and segregate WT, DpySteriles (qC1 homozygotes) and Sterile Uncs which have a head region that is broader than the tail region and have no postembryonic cell divisions. Previously called ncc-1(he5).

aatIs3 [unc-17p::YC3.60]. Expression of YC3.60 in VA, DA, VB, DB, AS, VC, and other head and tail neurons. Reference: Haspel et al. J Neurosci. 2010 Aug 18;30(33):11151-6.

Touch insensitive in tail.

Touch insensitive-at the tail. Degeneration of a small set of neurons. TAB Touch ABnormal).

wyIs581 [ser-2(prom3)::myr::mCherry + odr-1p::GFP] IV. GFP tag inserted into endogenous dma-1 locus after DMA-1 transmembrane domain and before cytoplasmic tail. Reference: Eichel K, et al. Nature. 2022 Sep;609(7925):128-135. PMID: 35978188.

wyIs581 [ser-2(prom3)::myr::mCherry + odr-1p::GFP] IV. wyIs740 [ser-2(prom3)::dma-1::GFP + odr-1p::GFP] IV. GFP inserted into DMA-1 after transmembrane region and before cytoplasmic tail in wyIs740 reporter. Reference: Eichel K, et al. Nature. 2022 Sep;609(7925):128-135. PMID: 35978188.

wyIs853 [ser-2(prom3)::mCherry::rab-7 + odr-1p::GFP] V. wyIs910 [ser-2(prom3)::FLP + unc-122p::BFP] X. GFP tag inserted into endogenous dma-1 locus after DMA-1 transmembrane domain and before cytoplasmic tail. Reference: Eichel K, et al. Nature. 2022 Sep;609(7925):128-135. PMID: 35978188.

wyIs592 [ser-2(prom3)::myr::GFP + odr-1p::RFP] III. mec-4(e1611) is a gain of function point mutation. wyIs740 [ser-2(prom3)::dma-1::GFP + odr-1p::GFP] IV. GFP inserted into DMA-1 after transmembrane region and before cytoplasmic tail in wyIs740 reporter. Reference: Eichel K, et al. Nature. 2022 Sep;609(7925):128-135. PMID: 35978188.

wyIs910 [ser-2(prom3)::FLP + unc-122p::BFP] X. tagRFP tag inserted into endogenous dma-1 locusafter the DMA-1 transmembrane domain and before cytoplasmic tail. rab-7(wy1390) = endogenous GFP-FLPon-RAB-7. Reference: Eichel K, et al. Nature. 2022 Sep;609(7925):128-135. PMID: 35978188.

wyIs910 [ser-2(prom3)::FLP + unc-122p::BFP] X. tagRFP tag inserted into endogenous dma-1 locus after the DMA-1 transmembrane domain and before cytoplasmic tail. GFP::FLP tag inserted into endogenous rab-11.1 locus. Reference: Eichel K, et al. Nature. 2022 Sep;609(7925):128-135. PMID: 35978188.

T05G5.3. Homozygous sterile deletion chromosome balanced by bli-4-, let-?- and GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP ok1882 homozygotes (sterile Unc with withered tail). Homozygous hT2[bli-4 let-? qIs48] normally inviable; occasional recombinants are seen (Bli, bright GFP). Pick WT GFP and check for correct segregation of progeny to maintain. External left primer: CACTAAGCAATGGTCTCGCA. External right primer: CGACAACAATGGAAACATCG. Internal left primer: CGCTTACGCCTTTTCTATCG. Internal right primer: ACCATTCTCTCGTGAATCCG. Internal WT amplicon: 2136 bp. Deletion size: 764 bp. Deletion left flank: TCGACAACAATGGAGCAATCAAGCTTGCCG. Deletion right flank: CGATAAATAAATTCGCTCTACTTTCATGCT. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the international C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

T24H10.6, T24H10.3. Homozygous viable deletion chromosome balanced by GFP- and dpy-10-marked inversion. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP, Dpy bright GFP (mIn1 homozygotes), and non-GFP ok1931 homozygotes (Sma, Unc, Gro with tail and vulval defects). Pick WT dim GFP and check for correct segregation of progeny to maintain. External left primer: TGGCGATTATGGAAGAGGAG. External right primer: ATTGCGATGAGAAAGCTCGT. Internal left primer: ATTCTCGCAAAGGCGACTAA. Internal right primer: CAAGCGTAAGGCTGAGAAGG. Internal WT amplicon: 2301 bp. Deletion size: 1608 bp. Deletion left flank: AGTTAGTAGGAACCAAGTTTGGCGAATACG. Deletion right flank: AAAACTTATAAATAAAGTGACAGATTTTAC. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the international C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

K12D12.1. Homozygous lethal deletion chromosome balanced by GFP- and dpy-10-marked inversion. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP, Dpy bright GFP (mIn1 homozygotes), and non-GFP ok1930 homozygotes (sterile Unc with withered tail, often grotty). Pick WT dim GFP and check for correct segregation of progeny to maintain. External left primer: TCCAATCAAAGGATTCGAGG. External right primer: ATGTCCTGGCCTTCCTTTTT. Internal left primer: GAACCCCTCAAGATCGCATA. Internal right primer: GGCTCCTTTGGCTCTTTCTT. Internal WT amplicon: 3358 bp. Deletion size: 1788 bp. Deletion left flank: TAGTGACGCTGGAGAAAGTTTTTATCCAGT. Deletion right flank: AGCTCCATGGTACAAGAACTTCCGCGGAAA. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the international C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

C34B2.8. Homozygous lethal deletion chromosome balanced by bli-4- and GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP ok2168 homozygotes (mid-larval arrest, thin Unc sometimes with withered tail). Homozygous hT2[bli-4 let-? qIs48] inviable. Pick WT GFP and check for correct segregation of progeny to maintain. External left primer: GTTTTCATTCCACCTTCGGA. External right primer: CATCTGCTCCAACGACTTCA. Internal left primer: AACAACCGCGTCAAAAGTGT. Internal right primer: ATTCGTCTCGATTTGCTGCT. Internal WT amplicon: 2130 bp. Deletion size: 1250 bp. Deletion left flank: GACCCACCGCTCAATTTTTGTTCCTGCGCC. Deletion right flank: TTGAATGCACGATAGCCTCCTTTTGGAGGC. Insertion Sequence: AAAAGTGCGATGGAAA. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the international C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

B0244.2. Slow-growing, and some animals appear sterile or Egl. Tail defects are common, and hermaphrodites can be mistaken for males in extreme cases. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the international C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

Y38F1A.5. Homozygous lethal deletion balanced by dpy-10-marked translocation. Heterozygotes are WT, and segregate WT, arrested mT1 aneuploids, sterile Dpy mT1 homozygotes, and ok423 homozygotes (slow-growing sterile or late larval arrest Dpy Unc, with abnormal tail and other morphological defects). Pick WT and check for correct segregation of progeny to maintain. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the international C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

ZK1151.1b. Homozygous lethal deletion chromosome balanced by bli-4- and GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP ok817 homozygotes (variable arrest stage; larvae often Dpy with lumpy tail and lumpy or notched head; adults often explode or disintegrate). Homozygous hT2[bli-4 let-? qIs48] inviable. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Pick WT GFP and check for correct segregation of progeny to maintain. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the international C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

B0464.7 Homozygous sterile deletion chromosome balanced by bli-4- and GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP gk324 homozygotes (sterile loopy Unc, sometimes with withered tail). Homozygous hT2[bli-4 let-? qIs48] inviable. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Pick WT GFP and check for correct segregation of progeny to maintain. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the international C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

C29E4.2. Homozygous sterile deletion chromosome balanced by bli-4- and GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP ok1151 homozygotes (sterile Unc often with withered tail). Homozygous hT2[bli-4 let-? qIs48] inviable. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Pick WT GFP and check for correct segregation of progeny to maintain. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the international C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

T07A9.11, T07A9.13. Viable, bloated with eggs, with vulval blip and tail abnormalities. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the international C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

gfEx1 [hmt-1p::GFP + unc-119(+)]. Maintain under normal conditions. GFP expression detected in Intestinal cells, terminal pharyngeal bulb, coelomocytes, and head & tail neurons. Reference: Schwartz MS, et al., PLoS One. 2010 Mar 5;5(3):e9564.

Loss of cell fusion in hypodermis (epithelial fusion failures). Viable and fertile as homozygotes. Tail-spike defect in all young larvae, less visible in older larvae and adults. oj55 appears to cause incomplete loss of function, as many cells fuse in postembryonic development. Homozygous males have tail and mating defects. ES-3. Cloned: ORF C26D10.5 encodes a type-I membrane glycoprotein with a single TM domain.

jcIs1 [ajm-1::GFP + unc-29(+) + rol-6(su1006)] IV. Loss of cell fusion in hypodermis (epithelial fusion failures). Viable and fertile as homozygotes. Tail-spike defect in all young larvae, less visible in older larvae and adults. oj55 appears to cause incomplete loss of function, as many cells fuse in postembryonic development. Homozygous males have tail and mating defects. ES=3. 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.

Dpy and Vab (tail abnormalities).

qaIs2241 [gcy-36p::egl-1 + gcy-35p::GFP]; causes genetic ablation of AQR, PQR, and URX neurons. Some residual neurons in the tail remain GFP+ from the gcy-35::GFP transgene.

iaIs21 [gcy-35p::GFP + unc-119(+)]. gcy-35::GFP is expressed in fifteen neurons, all of which also express ahr-1: AQR, PQR, URXR/L, ALNL/R, BDUL/R, SDQL/R, PLML/R, AVM, and two neurons in the tail tentatively identified as PLNL/R. gcy-35::GFP is only transiently expressed in PLML/R during the first larval stage.

hpIs819 [twk-40p(short)::GCaMP::T2A::NLS::mNeptune + lin-15(+)]. Cytoplasmic GFP and nuclear RFP in AVA, AVE, AVB and some neurons in RVG, and tail (DVA).

hpIs819 [twk-40p(short)::GCaMP::T2A::NLS::mNeptune + lin-15(+)]. hpIs810 [flp-18p::LoxP::eBFP::Stop::LoxP::TeTx::wCherry + twk-40p(short)::Cre]. Transgenic animals exhibit strong RFP signals in AVA soma and neurites; cytoplasmic GFP and RFP in AVA, AVE, AVB and some neurons in RVG and tail (DVA).

hpIs860 [twk-40p(short)::eGFP + myo-2p::wCherry]. Cytosolic GFP expression in AVA, AVE & AVB in the head, with the strongest signal in AVA. Additional fluorescent signal in RVG (SAB) and tail (DVA).

hpIs860 [twk-40p(short)::eGFP + myo-2p::wCherry]. twk-40 gain-of-function allele. Paralyzed, no backward movement upon head touch. Cytosolic GFP expression in AVA, AVE & AVB in the head, with the strongest signal in AVA. Additional fluorescent signal in RVG (SAB) and tail (DVA).

hpIs860 [twk-40p(short)::eGFP + myo-2p::wCherry]. Loopy movement with increased reversals. Cytosolic GFP expression in AVA, AVE & AVB in the head, with the strongest signal in AVA. Additional fluorescent signal in RVG (SAB) and tail (DVA).

hpIs66 [nab-1::GFP]. Reporter contains nab-1 genomic clone with 9 kb promoter sequence upstream of ATG, the entire nab-1 gene with GFP inserted immediately before the stop codon, and the 1 kb downstream sequence. Animals are slightly short with malformed tail in hermaphrodites. GFP localized in puncta at synapses in nerve cords and nerve ring. GFP localization also along the excretory canals, and some vulva expression. Reference: Hung W, et al. Development. 2007 Jan;134(2):237-49.

hpIs193 [nlf-1p::nlf-1::GFP + lin-15(+)]. GFP expression in head and tail neurons, as well as along ventral cord. Reference: Xie L, et al. Neuron. 2013 Mar 20;77(6):1069-82. PMID: 23522043

hpIs459 [unc-4p::GCaMP3::wCherry + lin-15(+)]. Strong GCaMP3 and wCherry expression in A-class motor neurons, as well as some head and tail neurons. It is recommended to use L4 stage animals when using this strain for calcium imaging and recording. Transgene expression becomes dimmer in many A-class neurons (except DA9), and is expression in VC neurons of adults. Reference: Gao S, et al. eLife, 7, e29915. https://doi.org/10.7554/eLife.29915 PMID: 29360035

hpIs587 [flp-14p::GCaMP6::wCherry + lin-15(+)]. CGaMP6 and wCherry expressed in RID, ALA, some head neurons, a mid-body neuron and a tail neuron. Reference: Lim et al., 2016. Elife 5. pii: e19887. doi: 10.7554/eLife.19887.

zxIs12 [F49H12.4P::ChR2(H134R)::mCherry + F49H12.4P::GFP]. Strain expresses Channelrhodopsin-2 (ChR2(H134R)::mCherry) and GFP (as marker) in PVD and AQR, as well as in a non-identified tail neuron, using the F49H12.4 promoter. When grown in the presence of all-trans retinal and illuminated with blue light, animals show strong forward locomotion escape behavior, which can be quantified using locomotion video tracking. The strain can be used to analyze function of PVD cells, and to estimate the role of specific genes in the function of this polymodal nociceptor, downstream of depolarization via ChR2. All-trans retinal needs to be added with OP50 bacteria when seeding plates to render ChR2 functional. References: Husson S, et al. Curr Biol. 2012 May 8;22(9):743-52. Smith CJ, et al. Neuron. 2013 Jul 24;79(2):266-80. Cohen E, et al. Molecular and Cellular Neuroscience 2104 59C: 85-96.

zxIs12 [F49H12.4P::ChR2(H134R)::mCherry + F49H12.4P::GFP]. Strain expresses Channelrhodopsin-2 (ChR2(H134R)::mCherry) and GFP (as marker) in PVD and AQR, as well as in a non-identified tail neuron, using the F49H12.4 promoter (see also ZX679). When grown in the presence of all-trans retinal and illuminated with blue light, animals show strong forward locomotion escape behavior, which can be quantified using locomotion video tracking. The strain can be used to analyze function of PVD cells, and to estimate the role of specific genes in the function of this polymodal nociceptor, downstream of depolarization via ChR2. All-trans retinal needs to be added with OP50 bacteria when seeding plates to render ChR2 functional. This strain is in lite-1(ce314) background, which eliminates the photophobic behavioral response that will be startled by blue light when longer light stimuli are used (>1s). To not confuse the photophobic behavior induced by LITE-1, with the PVD evoked escape behavior, this strain is needed for experiments with prolonged photostimulation. References: Husson S, et al. Curr Biol. 2012 May 8;22(9):743-52. Smith CJ, et al. Neuron. 2013 Jul 24;79(2):266-80. Cohen E, et al. Molecular and Cellular Neuroscience 2104 59C: 85-96.

Heterozygotes are WT and segregate WT and Unc Rollers. sC4(s2172) is not viable as a homozygote. As a heterozygote it reduces recombination between unc-76 and rol-9 to 1.8%. Note: This strain has been sequenced and the sC4 balancer contains a large deletion from V:16,060,619 to V:19,331,432 that removes 1,279 genes and has a complex rearrangement on LGIV. See Maroilley et al. Sci Reports (2021)11:18258 for more details. doi.org/10.1038/s41598-021-97764-9

Homozygous sterile mutation balanced by GFP- and dpy-10-marked inversion. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP, Dpy bright GFP (mIn1 homozygotes), and few GFP- tm2214 homozygotes animals which give very small brood size and hence can only be slowly propagated (see BP600 for detailed description for homozygote tm2214 phenotypes). Pick WT dim GFP and check for correct segregation of progeny to maintain.