Search Strains

ctIs33 [pal-1::GFP + rol-6(su1006)]. Heterozygotes are WT and segregate WT, DpySteriles and dead eggs. Pick wild-type heterozygotes to maintain. ct224 homozygotes show Nob phenotype: approximately 80% of homozygous embryos arrest at about the time of hatching with fairly normal anterior development but a severely deformed posterior with a variable knob-like shape; approximately 20% fail to enclose and do not hatch. ct224 is a 4.2kb deletion removing exon 1 through exon 6 of the pal-1 gene. ctIs33 carries a non-rescuing pal-1::GFP fusion containing ~7kb 5' of the SL1 splice site through part of exon 5 fused to GFP. GFP expression is primarily embryonic and limited to a few cells; not visible except at high magnification. Reference: Edgar LG, et al. Dev Biol. 2001 Jan 1;229(1):71-88.

svDp1 [sur-5::GFP] (III;f). svDp1 was derived by insertion of a sur-5::GFP marker into sDp3(III;f). Pick GFP+ wild-type to maintain. svDp1 rescues ct224. ct224 homozygotes (lacking GFP expression) show Nob phenotype: approximately 80% of homozygous embryos arrest at about the time of hatching with fairly normal anterior development but a severely deformed posterior with a variable knob-like shape; approximately 20% fail to enclose and do not hatch. The duplication is lost in about 30-40% of embryos. Reference: Edgar LG, et al. Dev Biol. 2001 Jan 1;229(1):71-88.

Maintain at 15C. Temperature sensitive embryonic lethal. Sterile at 25C. Congenic strain, N2 and Bergerac BE. This allele should NOT be assumed to define a gene to which someone gave the name zyg-12. This name should not be used unless someone finds a non-complementing Bristol mutation. There is no evidence at present that the ts results from a single gene defect. Has been backcrossed >6 times to Bristol strains and should only contain Bergerac DNA in the unc-85 to dpy-10 region.

ieSi6 [htp-3p::htp-3::GFP + Cbr-unc-119(+)] II. Maintain at 20C. Although silencing of the transgene has not observed, it may be helpful to maintain it over htp-3(tm3655) to continually select for expression. unc-119(ed3) might not be homozygous in this strain. Reference: Kim et al. Dev Cell. 2015 Oct 26;35(2):247-61.

mIs11 [myo-2p::GFP + pes-10p::GFP + F22B7.9::GFP]. Pick WT with dim GFP+ in pharynx to maintain. mIs11 homozygotes will quickly overtake the population if not selected against. GFP expression in 4-cell embryos, pharyngeal muscle and gut. Heterozygotes are WT with dim GFP signal in the pharynx. mIs11 homozygotes are WT with bright GFP in the pharynx. rad-51(lg8701) homozygotes are non-GFP and throw dead eggs.

ieSi1 [htp-3p::GFP::him-8 + unc-119(+)] II. ltIs37 [pie-1p::mCherry::his-58 + unc-119(+)] IV. ieSi1 is prone to silencing; GFP might not be visible at lower magnifications. [NOTE: the ltIs37 [pie-1p::mCherry::his-58 + unc-119(+)] IV transgene was previously annotated as itIs37 in this strain. The correct name of the transgene is ltIs37 and not itIs37.] Reference: Wynne DJ, et al. J Cell Biol. 2012 Jan 9;196(1):47-64.

mIs11 [myo-2p::GFP + pes-10p::GFP + F22B7.9::GFP]. Heterozygotes are wild-type with dim GFP signal in the pharynx. mIs11 homozygotes are wild-type with bright GFP in the pharynx. ieDf2 homozygotes (non-GFP) develop normally but produce 97.5% inviable embryos and a high frequency of males among the surviving self-progeny. Pick WT with dim GFP+ in pharynx to maintain. mIs11 homozygotes will quickly overtake the population if not selected against. GFP expression in 4-cell embryos, pharyngeal muscle and gut. ieDf2 is a deficiency of zim-1, zim-2, zim-3, and him-8 generated by MosDel, resulting in single-copy insertion of a copy of the C. briggsae unc-119 gene on Chromosome IV. The deletion spans the sequences from the beginning of the zim-1 coding sequence through the ttTi22866 Mos1 insertion site.

Unc-almost paralyzed. Growth slow. Not revertible DES.

Egg-laying defective. Moderate to severe bloating. 30% make bags of worms. Males mate. [NOTE: Probably contains a tightly linked mutation which cannot be crossed off. Use MT3188 as reference strain. Michael Stern 6\97]

Dauer defective. Not leaky. Crowds. Amphid defect by EM. M-MATING-NO SUCCESS.

Marginally Unc-cannot back. Lethargic. Migration pre VC defect. M-MATING+POOR <1%WT.

Heterozygotes are WT. Segregates Dpy. Segregates sterile Unc--Unc cannot back. Balanced well.

Pick Unc hermaphrodite to maintain (these will be tra-1/+; unc-42 him-5 dpy-21 XO animals). Segregates Unc hermaphrodites (tra-1/+ III), Unc males (+/+ III), and DpyUnc hermaphrodites (+/+ III). dpy-21 not expressed in XO. dpy-21(e428) V; XX animals are weak Dpy. dpy-21(e428) V; XO animals are non-Dpy.

Unc-cannot back. Recessive.

Nuclei not anchored in certain epithelial cells.

Nuclei not anchored in certain epithelial cells.

Dpy. Nuclei not anchored in certain epithelial cells.

e1873 allele is the only anc-1 allele in which the molecular lesion has been identified (Starr and Han, 2002) and is considered by the authors to be the reference allele. e1873 does not revert, unlike most other alleles of anc-1. Reference: Hedgecock and Thomson. Cell. 1982 Aug;30(1):321-30. Starr and Han. Science. 2002 Oct 11;298(5592):406-9.

Slightly Unc-cannot back. Recessive. M-MATING++ 1-10%WT. CGC received new stock 6/01.

Some FITC uptake by amphids but not by phasmids. Hypodermal defect.

Obligate XX female, XO male strain. Maintain by mating. e2020 is a dominant mutation transforming XX into fertile females. XO animals are partly feminized by starvation or elevated temperatures, therefore the strain cannot be grown at 25C.

eIs2137 [sup-7(+) + Dm-hsp::lacZ] IV. lacZ expression induced by heat shock. Limited pattern (the pSHZ1 vector was originally designed for use in Drosophila, not C. elegans, and is not the best vector for expression of lacZ in the worm). This strain has predominantly historical value (as the first C. elegans strain shown to express a foreign gene). eIs2137 transgene is integrated and contains two plasmids: pAST (sup-7 amber suppressor), and pSHZ1 (lacZ driven by Drosophila heat shock promoter (S. Munro)).

Temperature sensitive. Sterile at 25C. Maintain at 15C. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects. [2/98: Craig Mello noticed a different embryonic phenotype in this strain as compared to the e2141 stock that Jim Priess obtained from England-the ABp fate appears WT.] [NOTE (11/16/10 - J. Hubbard): This strain is NOT synonymous with glp-1(e2144) as previously reported in Kodoyianni V, Maine EM, Kimble J. (1992) [Molecular basis of loss-of-function mutations in the glp-1 gene of Caenorhabditis elegans. Mol Biol Cell. 3,1199-213. PMID: 1457827]. As reported in Worm Breeders Gazette December 2010; 18(3), e2144 carries the mutation c2785t in exon 8, leading to the amino acid change L929F, whereas e2141 carries the mutations c2920t and a3610g in exon 8, leading to the amino acid changes R974C and T1204A.]

Unc-cannot back. Males abnormal. Bursae abnormal. M-MATING-NO SUCCESS.

Anterior displacement of rays and fan. Ray identities are not altered. Slightly Unc (coiler).

Unc-cannot back. Egl. Males abnormal. Multiple defects in neuronal outgrowth and branching, also defects in excretory canal extension and in sex muscles migration.

y1 is a temperature sensitive mutation affecting only XX animals. him-8(e1489) causes X non-disjunction, resulting in many males. Grow at 15C. XX and XXX animals not viable above 15C. After shifting to 25C, surviving population is almost all XO males.

Heterozygotes are WT and segregate WT, Lethals (L2/L3 arrest at 20C, some survive to sterile adults at 15C), and DpyRol. Not balanced well: get recombinants. Must maintain by picking hets at each generation and check for proper segregants in F1.

Male/female strain which must be maintained by mating. spe-12(hc76) prevents self-fertility in hermaphrodites but does not impair spermatogenesis in males. Presence of him-8(e1489) increases male frequency.

Male-female strain. Reference WBG 9(3) 121. Isolated from sugar cane in Trinidad by D.J. Hunt (Commonwealth Institute of Parasitology). [7/7/93: Scott Baird and David Fitch question whether this strain is really C. remanei.] [7/95: Not cross-fertile with the authentic C. remanei isolated by Walter Sudhaus.] Previously called C. remanei by the CGC. Walter Sudhaus has tentatively described this strain as Caenorhabditis sp.; this description is not offical and is contigent upon its being published. See WBPaper00002633 and WBPaper00003993. sp. 4 in Kiontke and Sudhaus Wormbook Ecology chapter.

mIs12 [myo-2p::GFP + pes-10p::GFP + F22B7.9p::GFP] II. Hermaphrodites expressing compound GFP reporter (see PD4790). Strong pharyngeal muscle expression, easily scored by GFP dissecting scope. mIs12 is tightly linked to unc-4 II, and not to LG III or IV as previously reported. mIs12 homozygous males mate well (ME3).

Unc-cannot back up.

Dominant, gain-of-function mutation in egl-30; missense M244I. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Gln to Stop mutation in residue 205. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Gla. May contain dam-1(op241) in background. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

ep369 is a weak allele. ep6 is a deletion allele. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Resistant to radiation-induced apoptosis (Dam); non-Gla; very weak Rad; no gross phenotype. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Missense mutation E158K. Worms are Egl-c, Eat, and loopy-Unc. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

epIs14 [sbp-1p::GFP + rol-6(su1006)]. Rollers. sbp-1 previously known as pin-1. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Heterozygotes are Unc. Segregates DpyUncs. Segregates Uncs which are recessive Mel. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Heterozgyotes are WT and segregate WT, Dpys, and Ste or Mel. Pick wild-type individuals and check for correct segregation of progeny to maintain. bli-4 is suppressed by dpy-1 in hT2 homozygotes-only see a very few DpyBli.This strain cannot be distributed to commercial organizations. ep220 is likely Mel. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Weak Egl. Rollers. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Heterozygotes are WT and segregate WT, Roller Uncs, and ect-2 homozygotes (sterile Uncs which reach adulthood, sometimes giving polynucleate oocytes). ect-2 pka let-21. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Slow growth, low fat stores. Viable at 15C, not at 25C. Slightly Dpy, reduced brood size, low penetrance. Maintain under normal conditions. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects. Reference: Liang et al., (2010) PlosOne 5:3 e9869.

epEx141 [sbp-1::GFP::SBP-1 + rol-6(su1006)]. ep79 is a strong allele of sbp-1 (ts lethal). sbp-1 aka pin-1. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Weak sbp-1 allele. sbp-1 aka pin-1. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects. NOTE: This strain carries an unknown GFP marker.

Isolated in 1991 by Carlos E. Winter in soil samples taken at the University of Sao Paulo in Brazil. Hermaphrodite strain. Adults are smaller than C. elegans. The life cycle is a little longer than C. elegans at 22C. Each lays about 300 eggs in the three days following the moult from L4 to adult. Eggs are laid just after being fertilized resulting sometimes in plates with many eggs (much more than C. elegans). See Comp. Biochem. Physiol 103B: 189, 1992. See Nematology 2(1): 89-98, 2000. Can be grown and maintained on NGM. L1s easily frozen and stored in liquid nitrogen. This strain is deposited in Paul Sternberg's collection under the name PS1022. The species has not yet been determined; Lynn Carta will publish a paper proposing Oscheius brevesophaga. DO NOT use this name before the paper is published. Contact Carles E. Winter or Lynn Carta before publishing anything official about this strain. See also WBPaper00004471 and WBPaper00004485. AKA Oscheius sp. 1.

muIs49 [unc-22(+) egl-20::GFP]. Rescuing translational egl-20::GFP fusion. Not known to which LG muIs49 is attached. A few cells in the tail will light up with GFP.

muIs61 [(pKL78) daf16::GFP + rol-6(su1006)]. muIs61 rescues daf-16(mu86). muIs61 is a gamma-induced insertion of muEx50. muIs61 insertion point has not been mapped.