Temperature sensitive. Maintain at 15C. Some growth at 20C.

crgSi2081 [rpl-28p::PuroR + myo-2p::GFP + Cbr-unc-119(+)] II. Superficially wild-type. Puromycin resistant. ttTi5605 transposon in EG4322 has been replaced by a single copy insertion crgSi2081. Reference: Semple JI, et al., Nat Methods. 2010 Sep;7(9):725-7.

bqSi195 [(pBN65) hsp-16.41p::Dam::Myc::lmn-1 + unc-119(+)] II. Strain for DamID mapping of chromatin associated with the nuclear lamina/LMN-1. Made by MosSCI using strain EG4322 for injection. Might still carry unc-119(ed9) III, which is rescued by bqSi195. Reference: González-Aguilera C, et al. Genome Biol. 2014 Feb 3;15(2):R21.

bqSi196 [hsp-16.41p::GFP::Myc::Dam + unc-119(+)] II. Strain for DamID mapping of chromatin associated with the nuclear lamina/LMN-1. Made by MosSCI using strain EG4322 for injection. Might still carry unc-119(ed9) III, which is rescued by bqSi196. Reference: González-Aguilera C, et al. Genome Biol. 2014 Feb 3;15(2):R21.

bqSi218 [hsp-16.41p::Dam::Myc::emr-1 + unc-119(+)] II. Strain for DamID mapping of chromatin associated with the nuclear lamina/LMN-1. Made by MosSCI using strain EG4322 for injection. Might still carry unc-119(ed9) III, which is rescued by bqSi218. Reference: González-Aguilera C, et al. Genome Biol. 2014 Feb 3;15(2):R21.

rjSi1 [cra-1p::cra-1::GFP::cra-1 3'UTR + Cbr-unc-119(+)] II. Single copy insertion. cra-1 promoter, cra-1::GFP and 3'UTR was cloned into pCFJ150 (ttTi5605) vector and inserted into ttTi5605 of EG4322 strain. Outcrossed three times to N2 Bristol; could still carry unc-119(ed9) in the background. Superficially wild-type. This CRA-1::GFP fusion construct has been shown to be functional and its localization reflects endogenous CRA-1 localization. rjSi1 transgene can rescue synapsis defects of cra-1 mutants and restore cross-over events (six bivalents instead of the 11 to 12 univalents characteristic of cra-1 mutants). Brood size and embryonic lethality were significantly, albeit not completely, restored in the rescued line suggesting that the GFP tag might affect other CRA-1 functions. Reference: Gao J, et al. PLOS Genetics 11(3): e1005029. https://doi.org/10.1371/journal.pgen.1005029

Homozygous viable, gfp expression in intestine, hypodermis, somatic gonad, excretory duct, CAN neuron. Reference: Starich et al. eLife 2020;9:e58619. DOI: https://doi.org/10.7554/eLife.58619

Homozygous lethal deletion balanced by bli-4- and GFP-marked translocation. Heterozygotes are wild-type with pharyngeal GFP signal, and segregate wild-type GFP heterozygotes, arrested hT2 aneuploids, and non-GFP tn1762 homozygotes (dead embryos and L1 larvae). Homozygous hT2[bli-4 let-? qIs48] inviable. Pick wild-type GFP and check for correct segregation of progeny to maintain. tn1762 is a ~9.2 kb deletion within fasn-1, including Exon 2 thru to 57 nt preceding stop codon. 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.

Although this strain is maintainable as a homozygote it produces many dead embryos (~80%) and has a low viable brood size (~24 ± 18). Thus, the GFP tag compromises CYB-3 function.

Unc. Not caused by ttTi5605. Mos1 allele generated by NemaGENETAG consortium (Laurent Segalat). [NOTE: 11/15/11 - This strain contains unc-119(ed9), not unc-119(ed3) as previously reported. (C. Frokjaer-Jensen)] [NOTE: The Dernburg lab has noticed an increased number of rad-51 foci in EG4322 compared to N2. Please use the outcrossed version of this strain (EG6699) instead, which does not have this problem. (C. Frokjaer-Jensen)]

Maintain under normal conditions. Reference: Andersen EC, Nat Genet. 2012 Jan 29;44(3):285-90.

Utah natural isolate carrying peel-1(qq99) I. EG4348 was collected by M. Ailion from Salt Lake City, UT. qq99 designates the naturally occurring nonsense mutation in peel-1. Reference: Seidel HS et al. PLoS Biol. 2011 Jul;9(7):e1001115.

Maintain under normal conditions. Reference: Andersen EC, Nat Genet. 2012 Jan 29;44(3):285-90.

qqIr7 [peel-1(qq99)] I. oxSi78 [peel-1p::peel-1 (introns included)::GFP::peel-1 3'UTR + Cbr-unc-119(+)] II. Genetic background is a mixture of N2 and wild isolate EG4348. The oxSi78 insertion produces a PEEL-1::GFP translational fusion. PEEL-1::GFP is expressed in the spermatogenic germline and packaged into sperm. PEEL-1::GFP appears to localize to fibrous body-membranous organelles. PEEL-1::GFP does not rescue peel-1(qq99). Reference: Seidel HS, et al. PLoS Biol. 2011 Jul;9(7):e1001115.

mgIs45 [mir-84(over-expressing) + tub-1::GFP] I. wIs54 [scm::GFP] V. Maintain by picking animals with good expression of tub-1::GFP in amphid neurons to maintain. somi-1 mutation suppresses precocious development of the vulva and hypodermal cells caused by over-expression of mir-84. Reference: Hayes GD, Riedel CG, Ruvkun G. 2011. Genes Dev. 2011 Oct 1;25(19):2079-92.

Weak Hid. Eak.

hwSi3 [pie-1p::GFP::mex-3::pie-1 3'UTR + unc-119(+)] II. Worms are healthiest at 15C. Shift to 25C overnight to increase brightness of GFP. Mos1-mediated single-copy insertion (MosSCI) into EG4322. GFP-tagged transgene expressing full-length MEX-3 uniformly throughout oocytes and early embryos through the 4-cell stage. GFP::MEX-3 then mirrors endogenous MEX-3, disappearing from somatic cells by about the 12-cell stage. Also detected in P granules. GFP::MEX-3 can replace endogenous MEX-3. Reference: Huang NN & Hunter CP. Gene. 2015 Jan 10;554(2):160-73.

hwSi8 [pie-1p::GFP::mex-3(601-1248)::pie-1 3'UTR + unc-119(+)] II. Worms are healthiest at 15C. Shift to 25C overnight to increase brightness of GFP. Mos1-mediated single-copy insertion (MosSCI) into EG4322. GFP-tagged transgene expressing a portion of MEX-3(601-1248) required for protein degradation. At about the 12-cell stage, soma-germline asymmetry is briefly visible before GFP::MEX-3(601-1248) becomes undetectable even in the germline blastomeres. Detected weakly on P granules only in the presence of endogenous MEX. Reference: Huang NN & Hunter CP. Gene. 2015 Jan 10;554(2):160-73.

hwSi13 [pie-1p::GFP::mex-3(2-636)::pie-1 3'UTR + unc-119(+)] II. Worms are healthiest at 15C. Shift to 25C overnight to increase brightness of GFP. Mos1-mediated single-copy insertion (MosSCI) into EG4322. GFP-tagged transgene expressing truncated MEX-3 that is missing a portion required for protein degradation. GFP::MEX-3(2-636) is extraordinarily stable, persisting in somatic cells through the comma stage (~550 cells) at levels similar to those in 1- and 2-cell embryos. Also detected on P granules through hatching. Reference: Huang NN & Hunter CP. Gene. 2015 Jan 10;554(2):160-73.

Temperature sensitive. Maintain at 15C. Animals grown at 14C take 23% longer than wild-type to reach adulthood, exhibit 0% larval arrest, locomotion rates that are ~40% of wild type, and synaptic vesicle densities at synapses that are ~60% of wild type. Animals grown at 20C take 80% longer than wild type to reach adulthood, exhibit locomotion rates that are ~3% of wild type, and synaptic vesicle densities at synapses that are ~2% of wild type. Animals grown at 25C exhibit >90% larval arrest. When shifting late larval stage and adult animals from 14C to 25C, it takes 8-12 hours to see effects on locomotion and SV density. Reference: Edwards SL, et el. Genetics. 2015 Sept 201(1): 91-116.

Reference: Viswanathan M, Guarente L. Nature. 2011 Sep 21;477(7365):E1-2.

zdIs5 [mec-4p::GFP + lin-15(+)] I.

drSi12 [hsf-1p::human hsf-1::GFP::unc-54 3'UTR + Cbr-unc-119(+) II. Human hsf-1 cDNA with a C-terminal GFP and controlled by 4 kb of the C. elegans hsf-1 promoter, integrated at a single copy by MosSCI on chromosome II at ttTi5605 in EG4322. Exhibits nuclear GFP expression that redistributes into granules only after prolonged (1 hr) 35C heat shock. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

drSi13 [hsf-1p::hsf-1::GFP::unc-54 3'UTR + Cbr-unc-119(+)] II. hsf-1 cDNA with a C-terminal GFP and controlled by 4 kb of the hsf-1 promoter, integrated at a single copy by MosSCI on chromosome II at ttTi5605 in EG4322. Exhibits nuclear GFP expression that redistributes into granules after >1 min 35C heat shock. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

drSi28 [hsf-1p::hsf-1(R145A)::GFP::unc-54 3'UTR + Cbr-unc-119(+)] II. hsf-1 cDNA containing an arginine to alanine mutation at residue 145 in the DNA binding domain, with a C-terminal GFP and under control of 4 kb of the hsf-1 promoter, integrated at a single copy by MosSCI on chromosome II at ttTi5605 in EG4322. Exhibits nuclear GFP expression that redistributes into granules at a reduced rate compared to wild type immediately after 1 min 35C heat shock. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

drSi41 [hsf-1p::hsf-1::HA::unc-54 3'UTR + Cbr-unc-119(+)] II. hsf-1 cDNA containing an HA tag in frame between amino acids 370 and 371, under control of 4 kb of the hsf-1 promoter, integrated as a single copy by MosSCI on chromosome II at ttTi5605 in EG4322. Reference: Morton EA, Lamitina T. Aging Cell. 2012 Oct 26. doi: 10.1111/acel.12024.

Nonsense allele of peel-1 carried in Utah isolate EG4348 crossed into N2 Bristol background. Reference: Seidel HS et al. PLoS Biol. 2011 Jul;9(7):e1001115.

ustSi64 [wago-3p::3xFlag::GFP::wago-3::wago-3 3'UTR + Cbr-unc-119(+)] II. Inserted into ttTi5605 of parental strain EG4322. Reference: Huang X, et al. 2024. Dev Cell. Compartmentalized localization of perinuclear proteins within germ granules in C. elegans.

Endogenous lem-3 locus carries GFP tag and two misense mutations in conserved residues [Y556A G558A] of GIY-YIG nuclease domain. Homozygous viable, though [Y556A G558A] mutants exhibit increased embryonic lethality after irradiation and abolished localization of GFP::LEM-3 at the midbodies. Reference: Hong Y, et al. Nat Commun. 2018 Feb 20;9(1):728.

Homozygous viable. Increased embryonic lethality after irradiation.