Search Strains

tnEx212 [pod-2(+) + sur-5::GFP]. Pick GFP+ animals to maintain. sur-5::gfp(+) animals are wild type and segregate GFP(+) wild-type animals and GFP(-) pod-2(tn1691) dead embryos. tn1691 deletes ~15 kb within pod-2, including most of Exon 2 through to and including the stop codon (but not the polyA site). Reference: Starich TA, et al. eLife 2020;9:e58619 DOI: 10.7554/eLife.58619 PMID: 32735213

Heterozygotes are WT, GFP+ in the pharynx and segregate WT (GFP+ in the pharynx), dead eggs (homozygotes for hT2) and hmgr-1(tm4386) homozygotes, which die as young larvae (L1/L2). Maintain by picking GFP+ worms and checking for correct segregation, since the hT2 balancer is lost at low frequencies. hmgr-1(tm4386) can be maintained as homozygous fertile hermaphrodites on 20 mM mevalonolactone. Reference: P. Ranji, M. Rauthan, C. Pitot and M. Pilon, 2014. PloS ONE 9(6): e100033.

Heterozygotes are SmaCed and segregate SmaCed, SmaCedUnc and dead eggs. Maintain by picking SmaCed. tnDf2 is not transmitted well by males (i.e. tnDf2/+ males have a low mating efficiency).

Heterozygotes are WT and segregate WT, Unc-36 and dead eggs. Maintain by picking WT. tnDf2 is not transmitted well by males (i.e. tnDf2/+ males have a low mating efficiency).

Heterozygotes are Ced and segregate Ced, dead eggs and SmaCedUncs. Maintain by picking Ced. tnDf2 is not transmitted well by males (i.e. tnDf2/+ males have a low mating efficiency).

Temperature sensitive. Embryonic lethal. Gonadogenesis abnormal. Recessive. Maternal effect (m,m). Strict. Does not grow at 20C or 25C.

Temperature sensitive. Semi-dominant. Egg lethal. Not maternal. Will grow at 20C.

DH subclone of C. briggsae Zuckerman. This stock was maintained in liquid culture for some number of years, and has acquired mutations that have not been named or mapped. It is Unc, dauer-defective and ts lethal. Previously called C. briggsae BO. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Temperature sensitive. Embryonic lethal. Semi-dominant. Gonadogenesis defective. maternal effect (m,n). Will grow at 20C, but not 25C.

Temperature sensitive. Egg lethal. Will grow at 20C, but not 25C. Recessive. Maternal effect (m,n).

Temperature sensitive. Egg lethal. Maternal effect (m,n). Acc and Gon. Some growth at 20C, but not at 25C.

otEx3165 [unc-120p::hif-1(P621A) + ttx-3p::RFP]. Non-degradable form of HIF-1 expressed from muscle-specific promoter in hif-1 mutant background for tissue-specific rescuing experiments. otEx3165 does not rescue lethality in hif-1 mutant animals exposed to 50ppm hydrogen sulfide. Reference: Topalidou I & and Miller DL. bioRxiv 174581; doi: https://doi.org/10.1101/174581.

The unc-112(r367); raDf4/+ hermaphrodites move better than unc-112(r367); +/+ animals (but not as well as WT). raDf4 homozygotes arrest as L2 larvae. raDf4 deletes dim-1.

The unc-112(r367); raDf6/+ hermaphrodites move better than unc-112(r367); +/+ animals (but not as well as WT). raDf6 homozygotes arrest during embryogenesis. raDf6 deletes dim-1.

The unc-112(r367); raDf9/+ hermaphrodites move better than unc-112(r367); +/+ animals (but not as well as WT). raDf9 homozygotes arrest as L1 or L2 larvae. raDf9 deletes dim-1.

The unc-112(r367); raDf10/+ hermaphrodites move better than unc-112(r367); +/+ animals (but not as well as WT). raDf10 homozygotes arrest as L1 or L2 larvae. raDf10 deletes dim-1.

The unc-112(r367); raDf11/+ hermaphrodites move better than unc-112(r367); +/+ animals (but not as well as WT). raDf11 homozygotes arrest as L1 or L2 larvae. raDf11 deletes dim-1.

The unc-112(r367); raDf12/+ hermaphrodites move better than unc-112(r367); +/+ animals (but not as well as WT). raDf12 homozygotes arrest as L1 or L2 larvae. raDf12 deletes dim-1.

raEx438 [pxl-1p::pxl-1a(cDNA)::GFP + rol-6(su1086)]. Rollers. Transgene does not rescue ok1483 L1 lethality. Transgenic (Rol) heterozygotes segregate rolling non-Dpy (heterozygotes carrying raEx438), non-rolling non-Dpy (heterozygotes without the array), arrested L1 (ok1483 homozygotes) and sterlie Dpy (mT1 homozygotes). Pick rolling non-Dpy and check for correct segregation of progeny to maintain. Reference: Warner A, et al. Mol Biol Cell. 2011 Jul 15;22(14):2551-63.

edIs6 [unc-119::GFP + rol-6(su1006)] IV. Strong Roller phenotype. Hets are not Rollers (despite the presence of the supposedly dominant su1006 mutation in the array), so heterozygous males mate well. edIs6 is the integration of an array carrying pDP#MMUGF12 and pRF4. pDP#MMUGD12 ia an unc-119::GFP fusion that encodes 101 aa of UNC-119 and was made from the Fire lab vector pPD95.77. pRF4 is the rol-6(su1006) plasmid that gives a Rol phenotype. This strain allows the nervous system to be visualized by GFP fluorescence. GFP expression starts in the early embryo and continues through adulthood in most, if not all, of the nervous system. The expression of a similar lacZ fusion (but carrying a nuclear localizing signal) is described in Genetics 141: 977-988 1995.

Homozygotes for this mutation express a dumpy phenotype, while heterozygotes are roller and slightly shorter-than-wildtype in length. This Ctr-dpy-10 mutation will serve as a suitable syntenic marker for chromosome II mutations in C. tropicalis that does not impact the viability or fecundity of the organism. Generated in a C. tropicalis JU1373 background. Hermaphrodite. Culture at 20°C or above.

Superficially wild-type. Endogenously-tagged UNC-11::GFP is expressed in most, if not all, neurons, epithelial cells and coelomocytes, and should be visible in the nerve ring through a dissecting scope..

Paralyzed coiler. Slightly Egl. Slightly short. About half do not survive to adulthood-arrest usually in L1. See also WBPaper00001868.

More resistant to alpha-amanitin than ama-1(m118). Will grow in the presence of 0.5% triton-X 100 with 100 ug/ml amanitin whereas ama-1(m118) will not. DR1099 displays temperature-sensitive defects consistent with defective RNA Pol II function. Sterile at 25C (maternal effect sterile). Fertile at 20C, but produces few viable progeny (~80% eggs that do not hatch). Periodically check for Emb to prevent spontaneously suppressed animals from taking over a population. Reference: Rogalski TM, et al. Genetics. 1990 Dec;126(4):889-98.

WT phenotype. Segregates WT, homozygous Dpy-10 mIn1 and homozygous Unc-4 hermaphrodites. Recombination in this interval is suppressed, and recombinant animals have not been detected in this stock. This strain was generated by the Genetic Toolkit project, which should be acknowledged in any publications resulting from its use: The Genetic Toolkit is funded by the NIH National Center for Research Resources (NCRR) (USA) to Ann M. Rose, David L. Baillie, and Donald L. Riddle. Report all experimental results to Don Riddle. mIn1 pka mC6.

WT phenotype. Segregates WT and DpyUncs. mDp4 carries dpy-13(+) and unc-24(+). Duplication may recombine with normal homologues. Presence of unc-17(e245) on mDp4 confirmed: got Unc-17 segregants after heat shock of this stock to generate males. Pick WT and check for segregation of progeny to maintain.

Heterozygotes are WT and segregate WT, Roller Uncs, and a few Dpy mT1 homozygotes. mT1 is an apparent II;III translocation: small broods, lots of dead eggs, and exhibits pseudolinkage between rol-1 II and unc-71 III. The Roller phenotype of rol-1 expresses late and cannot be scored before adulthood. Pick non-Unc hermaphrodites and check for correct segregation of progeny.

This strain forms 20% dauers at 15C. At 25C there occurs about 25% embryonic arrest and about 75% L1 arrest. The e979 mutation results in an amino acid substitution, C146Y, in the ligand-binding domain of the DAF-2 receptor. [CGC received new stock of DR1942 September 2002. Previous stock was probably m41 and not e979.] [June 2004: Patrice Albert has confirmed the mutation in this stock: Repeat of sequencing for CGC collection strain DR1942 [daf-2(e979)] is complete. The strain does carry a C146Y mutation (coding strand TGC to TAC) [Mutation position is at 143, not 146, based on the amino acid sequence shown in Wormbase for daf-2. It's the C in partial sequence EKRCGPI of Exon 5.].]

Dark-bodied, unmarked variant of mIn19mC6) with small broods. Presumably balances let-552 to rol-1 (hermaphrodite stock obtained from outcrossing these males to dpy-10 unc-4 was shown to balance this interval). Isolated from DR1982 as a stock that no longer segregated Dpy-10 animals. Not clear whether this strain is the result of chromosome rearrangement in DR1982, or if DR1982 stock was a mixture of mIn1(+)/mIn[dpy-10] and mIn1(+) homozygotes.

Heterozygotes are WT and segregate WT, Lethal Uncs and Roller mIn1 homozygotes. let-552 unc-4 chromosome is well balanced. Rol does not express until late L4/early adult. Pick WT and check for correct segregation of progeny.

Approximately 30% dauer at 27C. Probably thermotolerant because it comes from a thermotolerant selection, but it was not retested. Increaesed longevity. Maintain at 15C.

Forms dauer larvae non-conditionally but only arrests at dauer stage for 1-2 days, then grows to adult. daf-c but not ts - can grow at 15C or 20C.

Not suppressed. Unc-slow moving.

sup-7 suppresses unc-13. Movement not WT. Fertility is low. Grows between 22.5C and 24C.

Temperature sensitive Daf-c. Maintain at 15C. Adults Age and Itt, but not Unc (severe class 1 allele). m212 results in an amino acid substitution(C883Y) in the extracellular portion of the DAF-2 receptor (specificaly, the FnIII2ID domain).

Heterozygotes are semi-Unc and segregate semi-Unc and Vul and dead eggs. (Does not segregate Unc homozygotes because linked to the unc is a lethal in the amanitin gene.)

Heterozygotes are semi-Dpy and segregate semi-Dpy, Unc and DpyLet. The DpyLet are adults which lay eggs that do not hatch. Maintain by picking semi-Dpy.

Heterozygotes are WT. At 25C the hets segregate DpyDafs, WT and Lon. At 15C the hets segregate Dafs, WT and Lon. [dpy-7(sc27) is temperature sensitive. At 25C it is larger than most Dpys and has a tendency to roll. Not expressed at 15C.] Maintain by picking WT.

Heterozygotes segregate wild-type GFP+ heterozygotes, GFP+ Dpy, and sec-5 homozygotes (scrawny, small broods, abnormal gut appearance) sec-5 is homozygous maternal-effect lethal; M+Z- animals produce a few dead L1-L2 stage larvae with Vab defects. Pick GFP+ wild-type to maintain. Based upon phenotype, pk2357 is a strong loss-of-function, but likely not a null allele; molecular lesion produces a premature stop at position 389. Reference: Frische EW, et al. EMBO J. 2007 Dec 12;26(24):5083-92. [NOTE: This strain was previously described as carrying pk2358, but pk2357 is the correct allele. Both pk2357 and pk2358 cause the same nonsense (amber) change.]

Unc (cannot back). WT male tail.

tra-1(ez72[biotag::GFP::TEV::3xflag::tra-1]) III. zuIs236 [his-72(1 kb 5'UTR)::BIRA::GFP::his-72(1 kb 3'UTR) + unc-119(+)]. Location of zuIs236 is not known, but is not in LG III.

Dpy. pag-1(ls2) is recessive and has not visible phenotype by itself. It increases the expression of certain lacZ fusion genes such as lacZmec-7, unc-86lacZ and unc-4unc-76lacZ.

Caenorhabditis elegans wild isolate. Isolated from a compost bin from a Midmar Allotment public vegetable garden (field 1 plot 39) near Edinburgh Scotland on Nov. 26, 2005. Haplotype (according to Cutter 2006 and Dolgin et al 2008): A. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Caenorhabditis elegans wild isolate. Isolated from a compost bin from a Midmar Allotment public vegetable garden (field 1 plot 39) near Edinburgh Scotland on Nov. 26, 2005. Haplotype (according to Cutter 2006 and Dolgin et al 2008): J. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Caenorhabditis elegans wild isolate. Isolated from a compost bin from a Midmar Allotment public vegetable garden (field 1 plot 39) near Edinburgh Scotland on Dec. 3, 2005. Haplotype (according to Cutter 2006 and Dolgin et al 2008): A. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Caenorhabditis elegans wild isolate. Isolated from a compost bin from a Midmar Allotment public vegetable garden (field 1 plot 39) near Edinburgh Scotland on Dec. 19, 2005. Haplotype (according to Cutter 2006 and Dolgin et al 2008): N. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Caenorhabditis elegans wild isolate. Isolated from a compost bin from a Midmar Allotment public vegetable garden (field 1 plot 39) near Edinburgh Scotland on Dec. 3, 2005. Haplotype (according to Cutter 2006 and Dolgin et al 2008): J. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Caenorhabditis elegans wild isolate. Isolated from a compost bin from a Midmar Allotment public vegetable garden (field 2 plot 43) near Edinburgh Scotland on Dec. 19, 2005. Haplotype (according to Cutter 2006 and Dolgin et al 2008): A. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Isolated by Michael Ailion from rotting apricot from home of Wayne Davis and Danielle Endres in Salt Lake City, Utah, 8/4/2006, under tree on north side of house. Coordinates: 40° 42' 26.16" N, 111° 52' 3.27" W. Animals move very rapidly. Strain started from a single L4 hermaphrodite and grown three generations before freezing. 18S rDNA sequence differs from C. briggsae NCBI entry (PB102), but is identical to the 18S sequence of AF16, HK104, PB800 and VT847. Cross-fertile with AF16. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Mixed "strain" started from many different worms that emerged from the same apricot that gave rise to strain EG4181. Some worms emerged as dauers, but there were also L4s and adults. Consists of a mix of the worms that came from the apricot to try to maintain as much diversity as possible in the population and thus is not a true strain in the traditional sense. It will be sent as contaminated worms since it cannot be cleaned up without going through a bottleneck. For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).