Search Strains

Heterozygotes are medium Dpy and glowing. Hets throw small, sterile DpyUncs and dead eggs. hT2[bli-4(e937) qIs48] is homozygous lethal. qIs48 is an insertion of ccEx9747 with markers myo-2::GFP expressed in the pharynx throughout development, pes-10::GFP expressed in the embryo, and gut promoter F22B7.9 driving GFP in the intestine. Do not distribute this strain; other labs should request it directly from the CGC. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype.

Heterozygotes are wild-type and segregate WT heterozygotes, Unc (gld-2 gld-1; unc-32 glp-1 homozygotes), and Dpy (hT2 homozygotes; the bli-4 mutation is suppressed by dpy-18). Check Unc-32 animals for tumors to confirm presence of glp-1 in the line. glp-1(q175) is nonsense R191 > stop (opal).

mig-1 confirmed by complementation tests, and cfz-2 by PCR. Segregates WT GFP+ heterozygotes, non-GFP Unc Sys, very rare GFP+ homozygous hT2, and dead eggs. Maintain by picking wild-type GFP+. Reference: Yamamoto et al. PLoS Genet. 2011 Oct;7(10):e1002308.

Pick GFP+ heterozygotes to maintain. Segregates fertile GFP+ heterozygotes, non-GFP homozygous mutants (Gld; form germline tumors), very rare GFP+ homozygous hT2, and dead eggs. Reference: Kershner et al. (2014) PNAS 111: 3739-3744.

Pick GFP+ heterozygotes to maintain. Segregates fertile GFP+ heterozygotes, non-GFP homozygous mutants (Gld; form germline tumors), very rare GFP+ homozygous hT2, and dead eggs. Reference: Shin et al. (2017) PLoS Genet. 2017;13(12):e1007121.

otIs114 [lim-6p::GFP + rol-6(su1006)]. qIs48 [myo-2::GFP + pes-10::GFP + ges-1::GFP]. Homozygous hT2 animals are inviable. Heterozygotes are Rollers and GFP+. Homozygous lsy-22(ot244) otIs114 animals are Rollers and have a maternal effect embryonic lethal phenotype.

Heterozygotes are wild-type, GFP+ and sensitive to ivermectin. Segregates non-GFP ego-1 homozygotes (sterile, resisitant to ivermectin), arrested hT2 aneuploids, and wild-type GFP+ heterozygotes. Maintain by picking GFP+. Do not distribute this strain; other labs should request it directly from the CGC. Reference: Claycomb JM, et al. Cell. 2009 Oct 2;139(1):123-34.

Heterozygotes are wild-type, GFP+ and sensitive to ivermectin. Segregates non-GFP drh-3 homozygotes (sterile, resisitant to ivermectin), arrested hT2 aneuploids, and wild-type GFP+ heterozygotes. Maintain by picking GFP+. Do not distribute this strain; other labs should request it directly from the CGC. Reference: Claycomb JM, et al. Cell. 2009 Oct 2;139(1):123-34.

syIs50 [cdh-3::GFP + dpy-20(+)]. Heterozygotes are WT and GFP+, and segregate arrested hT2 aneuploids, non-GFP gk324 homozygotes (Sterile and Unc). All worms express cdh-3::GFP at the anchor cell. qIs48 is an insertion of ccEx9747 with markers: myo-2::GFP expressed brightly in the pharynx throughout development, pes-10::GFP expressed in embryos, and a gut promoter driving GFP in the intestine, and is homozygous lethal.

qIs19 [lag-2p::GFP::unc-54 3'UTR + rol-6(su1006)] V. Heterozygotes are Rollers with pharyngeal GFP signal, and segregate arrested hT2 aneuploids, and non-GFP gk324 homozygotes (Sterile and Unc). All worms express lag-2p::GFP at the distal tip cells. qIs48 is an insertion of ccEx9747 with markers: myo-2::GFP expressed brightly in the pharynx throughout development, pes-10::GFP expressed in embryos, and a gut promoter driving GFP in the intestine, and is homozygous lethal.

ccIs4810 [(pJKL380.4) lmn-1p::lmn-1::GFP::lmn-1 3'utr + (pMH86) dpy-20(+)] X. Heterozygotes are WT with pharyngeal GFP signal, and segregate arrested hT2 aneuploids, non-GFP gk324 homozygotes (Sterile and Unc). All worms express Cel-lamin::GFP (lmn-1 gene is expressed at the nuclear periphery). qIs48 is an insertion of ccEx9747 with markers: myo-2::GFP expressed brightly in the pharynx throughout development, pes-10::GFP expressed in embryos, and a gut promoter driving GFP in the intestine, and is homozygous lethal.

zzIs16 [(pJE3) eff-1::GFP + rol-6(su1006)]. Heterozygotes are Rollers with pharyngeal GFP signal, and segregate arrested hT2 aneuploids, and non-GFP gk324 homozygotes (Sterile, Roller and Unc). All worms express GFP driven by eff-1 promoter. qIs48 is an insertion of ccEx9747 with markers: myo-2::GFP expressed brightly in the pharynx throughout development, pes-10::GFP expressed in embryos, and a gut promoter driving GFP in the intestine, and is homozygous lethal.

Linkage mapping strain. Maintain at 15C.

otIs3 [gcy-7::GFP + lin-15(+)] V. Heterozygotes are WT and GFP+ in the pharynx. ot59 is homozygous inviable. 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. In WT animals, gcy-7::GFP expressed in ASEL. unc-37(ot59) mutants, otIs3 is expressed in both ASEL and ASER.

wIs51 [SCMp::GFP + unc-119(+)] V. GFP expression in seam cells. Heterozygotes are GFP+(pharynx) wild-type and segregate GFP+(pharynx) wild-type, GFP-(pharynx) Sys Psa Unc and dead eggs. PIck GFP+(pharynx) wild-type to maintain. Presence of cfz-2 was confirmed by PCR; mig-1 by complementation test. Reference: Yamamoto Y, et al. PLoS Genet. 2011 Oct;7(10):e1002308.

Heterozygous. 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 tm4743 homozygotes (Egl, Mel, adult-onset sterility). Homozygous hT2[bli-4 let-? qIs48] inviable. Pick WT GFP and check for correct segregation of progeny to maintain. Only heterozygous animals should propagate. aph-1(tm4743) deletion allele was generated by the National BioResource Project of Japan, part of the International C. elegans Gene Knockout Consortium. Reference: Brinkley DM, et al. Genetics. 2024 Jul 8;227(3):iyae076. doi: 10.1093/genetics/iyae076. PMID: 38717968.

Heterozygous. 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 tm4743 homozygotes (Egl, Mel, but do not display adult-onset sterility). Homozygous hT2[bli-4 let-? qIs48] inviable. Pick WT GFP and check for correct segregation of progeny to maintain. Only heterozygous animals should propagate. aph-2(tm6471) deletion allele was generated by the National BioResource Project of Japan, part of the International C. elegans Gene Knockout Consortium. Reference: Brinkley DM, et al. Genetics. 2024 Jul 8;227(3):iyae076. doi: 10.1093/genetics/iyae076. PMID: 38717968.

Heterozygous. 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 ik7 homozygotes (Egl, Mel, but do not display adult-onset sterility). Homozygous hT2[bli-4 let-? qIs48] inviable. Pick WT GFP and check for correct segregation of progeny to maintain. Only heterozygous animals should propagate. aph-2(ik7) is a CRISPR-engineered full deletion of the aph-2 gene (3321 bp deletion). Reference: Brinkley DM, et al. Genetics. 2024 Jul 8;227(3):iyae076. doi: 10.1093/genetics/iyae076. PMID: 38717968. aph-2(ik7) is the first full deletion of the aph-2 gene (3321 bp deletion); it was generated by CRISPR/Cas9, as described in Brinkley et al. 2024 Homozygous aph-2(ik7) animals are Egl and Mel and do not display adult-onset sterility (see Brinkley et al, 2024). Only heterozygous animals from this strain will propagate.

wrmScarlet-I tag inserted into endogenous spe-38 locus. Him. wrmScarlet-I expression labels membranous organelles (MOs) in the sperm. Reference: Zuo Y, et al. Biomolecules. 2023; 13(4):623. https://doi.org/10.3390/biom13040623

nIs190 [myo-2::GFP]. Him. Heterozygotes are wild-type GFP+ and segregate WT GFP+ heterozygotes, Rol Uncs, dead embryos, and males. nIs190 [myo-2::GFP] integrated in or near mnC1. Approx 0.5% recombination seen between nIs190 and mnC1. Fails to complemement all markers on mnC1.

zhIs35 [let-23::GFP + unc-119(+)] I. zhIs35 resuces let-23(sy1) and recapitulates LET-23 antibody staining in VPCs. let-23::GFP transgene expression is higher in this strain than in AH1779 unc-119(ed3) III; zhIs38. Reference: Haag A, et al. PLoS Genet. 2014 May 1;10(5):e1004341.

zhIs38 [let-23::GFP + unc-119(+)] IV. zhIs38 resuces let-23(sy1) and recapitulates LET-23 antibody staining in VPCs. let-23::GFP transgene is expressed at levels similar to endogenous LET-23. Reference: Haag A, et al. PLoS Genet. 2014 May 1;10(5):e1004341.

Muv and Unc. Semi-dominant mutation in ect-2 (previously called let-21).

CRISPR allele of endogenous let-23, which expresses let-23::GFP fusion protein and is susceptible for conditional knock-out via incorporated FRT sites with FLPase expression. Reference: Konietzka et al. 2019. Current Biology (accepted).

wtfEx478 [rab-3p::AI::lite-1G::SL2::tagBFP::unc-54 3'UTR + unc-122p::GFP]. Pick GFP+ animals to maintain. Worms express purple/violet light-sensitive optogenetic protein LITE-1 pan-neuronallly and nuclear-localized blue fluorescent protein tagBFP via SL2 trans-slpicing regulatory sequence. Worms also express GFP in coelomocytes. Reporter construct contains an artificial intron (AI). Reference: Sharma AK, et al. Genetics 2024 May 11:iyae077. doi: 10.1093/genetics/iyae077 PMID: 38733622.

juSi164 [mex-5p::HIS-72::miniSOG + Cbr-unc-119(+)] III. wtfIs483 [rab-3p::AI::lite-1G::unc-54 3'UTR + rab-3p::AI::prdx-2G::SL2::his-24::tagRFP::unc-54 3'UTR + rab-3p::his-24::GCaMP6s::unc-54 3'UTR]. Keep plates covered to avoid unnecessary exposure to light. Pan-neuronal expression of a purple/violet light-sensitive optogenetic protein system LITE-1 and PRDX-2 with nuclear-localized tagRFP and GCaMP6s. Reporter construct contains an artificial intron (AI). Reference: Sharma AK, et al. Genetics 2024 May 11:iyae077. doi: 10.1093/genetics/iyae077 PMID: 38733622.

wamSi112 [eft-3p::mScarlet::unc-54 3'UTR + Cbr-unc-119(+)] II. Expresses a single copy of mScarlet from eft-3 promoter; construct utilizes the unc-54 terminator and 3'UTR. Can be used as a standard for multicolor imaging and quantitative microscopy. Reference: Sands B, et al. 2018. Translational Medicine of Aging Volume 2, January 2018, Pages 1–10.

zuIs45 [nmy-2p::nmy-2::GFP + unc-119(+)] V. Balanced heterozygotes are Unc and segregate Unc (heterozygotes), Rol Par (sqt-3 par-1 homozygotes; maternal effect lethal), and dead eggs (nT1 homozygotes). NMY-2::GFP is expressed in the germline and somatic gonad. Cross of JJ1473 and KK288. Unknown if unc-119(ed3) is still present or homozygous in background. Reference: Small LE & Dawes AT. Mol Biol Cell. 2017 Aug 1;28(16):2220-2231.

Heterozygotes are Unc and segregate Uncs (heterozygotes), non-Unc spo-11 homozygotes, and dead eggs (nT1 homozygotes). spo-11 homozygotes produce an average of ~200 fertilized eggs but only about 0.1 progeny survive to adulthood. When mated to N2 males, spo-11 homozygotes will produce at least 5-10 cross progeny.

Heterozygotes are Unc and segregate Uncs (heterozygotes), non-Unc mre-11 homozygotes, and dead eggs (nT1 homozygotes). mre-11 homozygotes produce about 200 fertilized eggs but only about 2-3% of these eggs survive to adulthood (this mutation cannot be maintained in a homozygous condition). Occasionally non-Unc progeny that do not demonstrate the mre-11(ok179) mutant phenotype arise when grown in large liquid cultures. mre-11 is the predicted gene ZC302.1

Heterozygotes are Unc and segregate Uncs (heterozygotes), non-Unc msh-5 homozygotes, and dead eggs (nT1 homozygotes). msh-5 homozygotes give 97.9% dead eggs; of those that hatch, 42% are male.

Balanced heterozygotes are GFP+ Unc and segregate GFP+ Unc (heterozygotes), non-GFP non-Unc spo-11(me44) homozygotes, and dead eggs (nT1 homozygotes). spo-11(me44) homozygotes are viable and produce more than 90% dead eggs (a large fraction of the survivors are males — strong Him phenotype); cytologically they lack chiasmata in diakinesis-stage oocytes and lack RAD-51 foci. Maintain by picking Unc.

Balanced heterozygotes are GFP+ Unc and segregate GFP+ Unc (heterozygotes), non-GFP non-Unc rad-50(ok197) homozygotes, and dead eggs (nT1 homozygotes). rad-50(ok197) homozygotes are viable and produce more than 98.8% dead eggs (a large fraction of the survivors are males — strong Him phenotype); cytologically they lack chiasmata in diakinesis-stage oocytes, but pairing and synapsis appear normal. Maintain by picking Unc.

Balanced heterozygotes are GFP+ Unc and segregate GFP+ Unc (heterozygotes), non-GFP non-Unc him-3(me80) homozygotes, and dead eggs (nT1 homozygotes). him-3(me80) homozygotes are viable and non-Unc. They produce more than 85% dead eggs and a large fraction (11%) of the survivors are males (Him phenotype). Cytologically they exhibit a reduced level of HIM-3 loading and fewer stretches of SYP-1 than WT. In diakinesis-stage oocytes, they contain a mixture of bivalents and univalents. Maintain by picking Unc.

Balanced heterozygotes are Unc and segregate Unc (heterozygotes), non-Unc syp-2(ok307) homozygotes, and dead eggs (nT1 homozygotes). syp-2(ok307) homozygotes are viable and non-Unc. They produce 96% dead eggs and 44% males; cytologically they lack chiasmata in diakinesis-stage oocytes, exhibit persistent polarized nuclear organization during earlier meiotic prophase, lack synaptonemal complexes, and exhibit unstable pairing of homologous chromosomes.

Balanced heterozygotes are GFP+ Unc and segregate GFP+ Unc (heterozygotes), non-GFP non-Unc syp-1(me17) homozygotes, and dead eggs (nT1 homozygotes). syp-1(me17) homozygotes produce 95% dead embryos and 38% males. Cytologically they lack chiasmata in diakinesis-stage oocytes, exhibit persistent polarized nuclear organization during earlier meiotic prophase, lack synaptonemal complexes, and exhibit unstable pairing of homologous chromosomes. qIs50 is an insertion of ccEx9747 with markers: myo-2::GFP expressed brightly in the pharynx throughout development, pes-10::GFP expressed in embryos, and a gut promoter (F22B7.9) driving GFP in the intestine.

Heterozygotes are WT and segregate WT, Unc and DpyUncLets. Lethal at L1. Maintain by picking WT.

Heterozygotes are WT and segregate more WT, paralyzed Unc, and DpyUncLet (DpyUnc Larvae are abnormal). Maintain by picking WT.

Heterozygotes are WT and segregate more WT, paralyzed Unc and DpyUncLethals. The DpyUncLets are abnormal larvae and die in early larval development. Pick WT to maintain.

Heterozygotes are WT and segregate more WT, paralyzed Unc and DpyUncLet. The DpyUncs are abnormal larvae that die in late larval development. Pick WT to maintain.

Heterozygotes are WT and segregate more WT, paralyzed Unc and DpyUncLet. The DpyUncLet larvae are abnormal. Pick WT to maintain.

Heterozygotes are WT and segregate more WT, paralyzed Unc and DpyUncLethal. The DpyUncs are abnormal larvae that die in early larval development. Pick WT to maintain. Note 5/92: probably has lost dpy-14.

Heterozygotes are WT and segregate WT, Vul, UncLet and dead eggs. Lethal mid-larval. Maintain by picking WT.

Heterozygotes are WT and segregate WT, Unc-36, DpyUncLet and dead eggs. Homozygous s427 is a cold sensitive sterile adult.(??) Maintain by picking WT.

WT strain which segregates WT, Unc-36, dead eggs, and DpyUncLets. Lethal mid-larval. Maintain by picking WT.

Heterozygotes are WT and segregate WT, DpyUncLet and dead eggs. Lethal mid larval. Maintain by picking WT.

Heterozygotes are WT and segregate WT, Unc-36, DpyUncLet and dead eggs. Lethal early larval. Maintain by picking WT. Some DpyUnc escapers are Sterile and have a protruding vulva.

WT strain which segregates WT, Unc-36, and dead eggs. (Egg lethal.) Maintain by picking WT.

Heterozygotes are WT and segregate WT, Unc-36, dead eggs and DpyUncLets. Lethal mid-larval. Maintain by picking WT.

Heterozygotes are WT and segregate more WT, paralyzed Unc and DpyUncLethals. The DpyUncs are abnormal larvae that die in early larval development (L1). Pick WT to maintain. Previously called myo-1(s101).