Search Strains

qSi150 [sygl-1p::3X flag::sygl-1::tbb-2 3' UTR + Cbr-unc-119(+)] II. Phenotypically gravid, grows as a homozygote. Increased SYGL-1 protein expression, expanded progenitor zone, expanded GSC pool. Reference: Shin H. et al. PLoS Genet. 2017 Dec 12;13(12):e1007121.

Temperature sensitive - raise at 15 or 20C. Do not distribute this strain; other labs should request it directly from the CGC.

Maintain at 15C. Heterozygotes are WT, GFP+ in the pharynx and segregate WT (GFP+ in the pharynx), dead eggs (hT2 homozygotes) and non-GFP tra-1(q183) homozygous females. Raise strain at 15C; at 20C many heterozygotes are also feminized. tra-1(q183) is temperature-sensitive for its XX, but not its XO mutant phenotype. At 25C, both q183/q183 and q183/+ are female. At 15C, q183/q183 is still always female, but q183/+ can be hermaphroditic. Maintain by picking fertile GFP worms and checking for correct segregation, since the hT2 balancer is lost at low frequencies.

Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP q869 homozygotes (viable and somewhat fertile). Homozygous hT2[bli-4 let-? qIs48] inviable. Pick WT GFP and check for correct segregation of progeny to maintain. q869 is a deletion of the entire lst-1 coding sequence as well as 139 bp upstream of M71 start codon and 228 bp downstream of the coding sequence. Reference: Haupt KA, et al. Development. 2019 Oct 17;146(20):dev181644. doi: 10.1242/dev.181644. PMID: 31515205

qSi369 [sygl-1p::24xMS2 loops::3xflag::sygl-1::sygl1 3'UTR]. qSi370 [mex-5p:: MS2 Coat Protein::linker::sfGFP::tbb-2 3' UTR::gpd-2 intergenic sequence::H2B::mCherry::unc-54 3' UTR]. Superficially wild-type with expression of sfGFP and nuclear mCherry in germline. qSi369 and qSi370 constitute an MS2 system which allows live visualization of sygl-1 nascent transcripts in the C. elegans germline in a glp-1 mutant background. qSi370 can be prone to silencing, especially after severe starvation; silencing of GFP or mCherry expression can occur independently of one another. Maintain by picking animals with bright GFP and mCherry expression. Reference: Lee C, et al. Dev Cell. 2019 Aug 19;50(4):426-435.e4.

Heterozygotes are wild-type and segregate wild-type heterozygotes, glp-1(q35) homozygotes (Muv steriles), eT1 homozygotes (Unc-36), and males. glp-1(q35) has a semi-dominant multi-vulva phenotype as well as the loss-of-function Glp phenotype (sterility and embryonic lethality). The q35 mutation is a nonsense mutation that eliminates 122 C-terminal amino acids including a PEST sequence. The C terminus was thought to contain a negative regulatory domain that inactivates glp-1 in the VPCs; the inappropriate glp-1(q35) activity can substitute for lin-12 vulval fate determination. References: Austin J & Kimble J. Cell. 1987 Nov 20;51(4):589-99. Mango S, et al. Nature. 1991 Aug 29;352(6338):811-5.

Endogenous glp-1 locus tagged with 4xV5. Tagged GLP-1 rescues: glp-1(q1000) is fertile and progenitor zone looks wild-type. Reference: Sorensen EB, et al. A toolkit of tagged glp-1 alleles reveals strong glp-1 expression in the germline, embryo, and spermatheca. microPublication Biology, 2020(06). http://doi.org/10.17912/micropub.biology.000271

q873[fog-3(1-262)::GGS::3xFLAG::fog-3(263 Phe)] I. qSi375 [mex-5p::eGFP::linker::his-58::3xboxb::tbb-2 3’UTR] II. The tethering assay allows this strain to be used for determining FOG-3 levels in different genetic backgrounds. Similar fertility to N2 wild type. Reference: Aoki S, et al. Cell Rep. 2018 Jun.26; 23(13):3769-3775

Endogenous glp-1 locus tagged with 2x OLLAS. Tagged GLP-1 rescues: glp-1(q997) is fertile and progenitor zone looks wild-type. Reference: Sorensen EB, et al. A toolkit of tagged glp-1 alleles reveals strong glp-1 expression in the germline, embryo, and spermatheca. microPublication Biology, 2020(06). http://doi.org/10.17912/micropub.biology.000271

q1023 is an engineered Y479A point mutation in the R7/R8 loop of 3xFLAG-tagged FBF-2. Derived by modification of parental strain JK5935 fbf-2(q945[3xFLAG::fbf-2]) II. Pick GFP+ t maintain. Homozygous sterile (Mog) 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 non-GFP ok91 q1023 homozygotes (sterile Mog). Pick WT dim GFP and check for correct segregation of progeny to maintain. Reference: Carrick BH, et al. Dev Cell. 2024 Mar 11;59(5):661-675.e7. doi: 10.1016/j.devcel.2024.01.005. PMID: 38290520.

Maintain at 15C. Germline tumor formation at 25C. A mix of fertile wild-type and proximal tumorous animals at 20C. glp-1(ar202) V5 CRISPR/Cas9 gene editing was used to insert a 3xV5 tag into C-terminus of GLP-1 between amino acids K(1209) and S(1210) using the same reagents as described for tagging wild-type GLP-1 (Sorensen et al., 2020). GLP-1 ar202V5 germlines express GLP-1 in membranes.

Pick GFP+ to maintain. CRISPR-engineered RAM mutations in endogenous glp-1 locus with C-terminal 4xV5 tag. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP q1035 homozygotes (sterile). Homozygous hT2[bli-4 let-? qIs48] inviable. Maintain by picking GFP+ heterozygotes and checking for correct segregation of progeny to maintain a balanced stock. Derived by modification of parental strain JK5933 glp-1(q1000).

qSi380 [mex-5p::eGFP::3xOLASS::linker::his-58::MODC pest::3xboxb::tbb-2 3'UTR::SL2 trans-splice site::mCherry::3xV5::linker::his-58::MODC pest::mutant 3xboxb::tbb-2 3'utr::tbb-1 intergenic region] IV. Worms are fertile at 20C. Improved tethering assay for use in the C. elegans germline. GFP reporter mRNA is under control of a germline-expressed mex-5 promoter and has three boxB stem-loops in its 3'UTR. The RNA-binding protein (RBP) is tagged with lamda-N. The nascent transcript driven by mex-5 promoter is resolved by trans-splicing into two mRNAs that encode distinct reporters. The GFP reporter RNA has three functional boxB stem-loops in its 3'UTR; the mCherry reporter 3'UTR has three mutated boxB stem-loops that do not bind lamda-N and therefore provides an internal control. Addition of an OLLAS tag to GFP and a V5 tag to mCherry enables sensitive immunostaining and immunoblotting. Reference: Doenier J, et al. RNA. 2021 Jun;(6)643-652. PMID: 33727224.

qSi380 [mex-5p::eGFP::3xOLASS::linker::his-58::MODC pest::3xboxb::tbb-2 3’utr::SL2 trans-splice site::mCherry::3xV5::linker::his-58::MODC pest::mutant 3xboxb::tbb-2 3'utr::tbb-1 intergenic region] IV. Worms are fertile at 20C. Improved tethering assay for use in the C. elegans germline. GFP reporter mRNA is under control of a germline-expressed mex-5 promoter and has three boxB stem–loops in its 3?UTR. The RNA-binding protein (RBP) is tagged with lamda-N. The nascent transcript driven by mex-5 promoter is resolved by trans-splicing into two mRNAs that encode distinct reporters. The gfp reporter RNA has three functional boxB stem–loops in its 3?UTR; the mCherry reporter 3?UTR has three mutated boxB stem–loops that do not bind lamda-N and therefore provides an internal control. Addition of an OLLAS tag to GFP and a V5 tag to mCherry enables sensitive immunostaining and immunoblotting. Reference: Doenier J, et al. RNA. 2021 Jun;(6)643-652. PMID: 33727224.

Homozygous maternal effect lethal double mutant balanced by GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP+, arrested GFP+ nT1[qIs51] aneuploids, and non-GFP puf-3(q966) puf-11(q971) homozygotes (maternal effect lethal). Homozygous nT1[qIs51] inviable. Pick wild-type GFP and check for correct segregation of progeny to maintain.

Heterozygotes are wild-type and segregate wild-type, Unc-36 eT1 homozygotes, UncSteriles, and arrested eT1 aneuploid progeny (dead eggs). Maintain by picking wild-type and check for correct segregation of progeny to maintain. eT1 previously known as unc-36(e873). Do not distribute this strain; other labs should request it from the CGC.

Pick GFP+ to maintain. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP q869 q828 homozygotes (sterile). Homozygous hT2[bli-4 let-? qIs48] inviable. Maintain by picking GFP+ heterozygotes and checking for correct segregation of progeny to maintain a balanced stock. Reference: Lynch TR, et al. Development. 2022 Apr 1;149(7):dev200332. PMID: 35394007.

Pick wild-type GFP+ to maintain. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP+ (heterozygotes), Dpy bright GFP+ (mIn1 homozygotes), and non-GFP fbf-1 fbf-2 homozygotes. fbf-1(q1227) fbf-2(q945[3xFLAG::fbf-2]) homozygotes are partially sterile, ~50% make excess sperm and delay oogenesis resulting in delayed egg laying when compared to wild-type animals. Pick WT dim GFP and check for correct segregation of progeny to maintain. q1227 is an engineered Y477A point mutation in FBF-1 derived by modification of parental strain JK5810.

Pick wild-type GFP+ to maintain. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP+ (heterozygotes), Dpy bright GFP+ (mIn1 homozygotes), and non-GFP fbf-1 fbf-2 homozygotes (sterile). Pick WT dim GFP and check for correct segregation of progeny to maintain. q1011 is an engineered Y479A point mutation in the R7/R8 loop of 3xFLAG-tagged FBF-2 derived by modification of parental strain JK5810 fbf-2(q945[3xFLAG::fbf-2]) II. q1228 is an engineered Y477A point mutation in FBF-1 derived by modification of parental strain JK5984.

Pick GFP+ to maintain. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP q869 q1054 homozygotes (sterility/reduced fertility). Homozygous hT2[bli-4 let-? qIs48] inviable. Maintain by picking GFP+ heterozygotes and checking for correct segregation of progeny to maintain a balanced stock. Reference: Lynch TR, et al. Development. 2022 Apr 1;149(7):dev200332. PMID: 35394007.

Pick GFP+ to maintain. CRIPSR-engineered modification of gld-1 FBEa and FBEa* in gld-1 3'UTR.  Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP q1243 homozygotes (sterility/reduced fertility). Homozygous hT2[bli-4 let-? qIs48] inviable. Maintain by picking GFP+ heterozygotes and checking for correct segregation of progeny to maintain a balanced stock. Increase in distal GLD-1 protein levels and decrease in proximal GLD-1 protein levels. Qiu et al., in preparation.

Pick wild-type GFP+ to maintain. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP+ (heterozygotes), Dpy bright GFP+ (mIn1 homozygotes), and non-GFP fbf-1 fbf-2 homozygotes (sterile). Pick WT dim GFP and check for correct segregation of progeny to maintain. q1250 is an engineered Y477A point mutation in FBF-1 derived by modification of parental strain JK3101.

Pick wild-type GFP+ to maintain. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP+ (heterozygotes), Dpy bright GFP+ (mIn1 homozygotes), and non-GFP fbf-1 fbf-2 homozygotes (Mog). Pick WT dim GFP and check for correct segregation of progeny to maintain. q1251 is an engineered H324A point mutation in FBF-1 derived by modification of parental strain JK3101.

Pick wild-type GFP+ to maintain. 3xFlag tag inserted into endogenous fbf-2 locus with engineered (H326A, Y479A) substitutions. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP+ (heterozygotes), Dpy bright GFP+ (mIn1 homozygotes), and non-GFP fbf-2 homozygotes (sterile?). Pick WT dim GFP and check for correct segregation of progeny to maintain.

Pick wild-type GFP+ to maintain. 3xFlag tag inserted into endogenous fbf-2 locus with engineered (H453A H454A E457A) substitutions. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP+ (heterozygotes), Dpy bright GFP+ (mIn1 homozygotes), and non-GFP fbf-1 fbf-2 homozygotes (Sterile). Pick WT dim GFP and check for correct segregation of progeny to maintain.

Heterozygotes are wild-type and segregate wild-type heterozygotes, sterile Mog, and Unc Dpy. Pick wild-type and check for proper segregation of progeny. Do not distribute this strain; other labs should request it from the CGC.

Pick wild-type GFP+ to maintain. 3xFlag tag inserted into endogenous fbf-2 locus with engineered (H453A H454A E457A Y479A) substitutions. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP+ (heterozygotes), Dpy bright GFP+ (mIn1 homozygotes), and non-GFP fbf-1 fbf-2 homozygotes (Sterile). Pick WT dim GFP and check for correct segregation of progeny to maintain.

Pick GFP+ to maintain. C-teminal V5 epitope tag inserted into endogenous sygl-1 locus that has a CRISPR-engineered mutation of predicted Notch-dependent cis-regulatory elementa LBS BCD (Yoo et al., 2004). Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP q869 q1167 homozygotes (sterility/reduced fertility). Homozygous hT2[bli-4 let-? qIs48] inviable. Maintain by picking GFP+ heterozygotes and checking for correct segregation of progeny to maintain a balanced stock. Reference: Lynch TR, et al. Development. 2022 Apr 1;149(7):dev200332. PMID: 35394007.

Engineered TGT to ACA substitutions in FBEa1 and FBEb of the endogenous gld-1 locus with a downstream G to C substitution to facilitate screening by restriction digest. Pick GFP+ to maintain. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP+, arrested hT2 aneuploids, and non-GFP q1271 homozygotes (sterile Mog). Homozygous hT2[bli-4 let-? qIs48] inviable. Pick WT GFP+ and check for correct segregation of progeny to maintain. Derived by modification of gld-1(q1242) homozygotes from parental strain JK6540. Reference: Carrick BH, et al. Dev Cell. 2024 Mar 11;59(5):661-675.e7. doi: 10.1016/j.devcel.2024.01.005. PMID: 38290520.

Pick wild-type GFP+ to maintain. 3xFlag tag inserted into endogenous fbf-2 locus with engineered Y479F substitution. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP+ (heterozygotes), Dpy bright GFP+ (mIn1 homozygotes), and non-GFP fbf-2 homozygotes (sterile?). Pick WT dim GFP and check for correct segregation of progeny to maintain.

Pick wild-type GFP+ to maintain. 3xFlag tag inserted into endogenous fbf-2 locus with engineered (N415A Y416A Q419A S453A H454A E457A) substitutions. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP+ (heterozygotes), Dpy bright GFP+ (mIn1 homozygotes), and non-GFP fbf-1 fbf-2 homozygotes (Mog). Pick WT dim GFP and check for correct segregation of progeny to maintain.

Pick wild-type GFP+ to maintain. 3xFlag tag inserted into endogenous fbf-2 locus with engineered Y479E substitution. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP+ (heterozygotes), Dpy bright GFP+ (mIn1 homozygotes), and non-GFP fbf-2 homozygotes (sterile?). Pick WT dim GFP and check for correct segregation of progeny to maintain.

Pick GFP+ to maintain. PUF-interacting motif B (PIM B) disrupted in endogenous lst-1 locus. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP q1086 q828 homozygotes (sterile). Homozygous hT2[bli-4 let-? qIs48] inviable. Maintain by picking GFP+ heterozygotes and checking for correct segregation of progeny to maintain a balanced stock.

Pick GFP+ to maintain. PUF-interacting motif A (PIM A) disrupted in endogenous lst-1 locus. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP q1124 q828 homozygotes (sterile). Homozygous hT2[bli-4 let-? qIs48] inviable. Maintain by picking GFP+ heterozygotes and checking for correct segregation of progeny to maintain a balanced stock.

Balanced temperature-sensitive allele of glp-1. Maintain at 20-25C. At restrictive temperature (25C), heterozygotes are wild-type and segregate wild-type, Unc-36 eT1 homozygotes, UncSteriles, and arrested eT1 aneuploid progeny (dead eggs). At permissive temperature (15C), heterozygotes are wild-type and segregate wild-type, Unc-36 eT1 homozygotes, fertile Unc-32 (can be maintained as a homozygous stock at 15C), and arrested eT1 aneuploid progeny (dead eggs). Maintain by picking wild-type and check for correct segregation of progeny to maintain. eT1 previously known as unc-36(e873). Do not distribute this strain; other labs should request it from the CGC.

Unc. sog-4 suppresses glp-1 at or below 20C. Do not maintain above 20C. Some Glp dead embryos because suppression is incomplete. Do not distribute this strain; other labs should request it from the CGC.

Unc. sog-5 suppresses glp-1 at or below 20C. Stock cannot be maintain above 20C. Some dead Glp embryos on plates. Do not distribute this strain; other labs should request it from the CGC.

Unc. Fertile with viable progeny at or below 20C. Glp-1 sterile at higher temperatures. No obvious visible phenotype associated with sog-1. Do not distribute this strain; other labs should request it from the CGC.

Unc. Fertile with viable progeny at or below 20C. Glp-1 sterile at higher temperatures. No obvious visible phenotype associated with sog-6. Do not distribute this strain; other labs should request it from the CGC.

ZF1-degron, GFP, and 3xFlag tags inserted into endogenous zyg-9 locus. No overt phenotypes in a zif-1(gk117) background. Predicted no degradation because zif-1 putative null is present. Can be used for degradation of zyg-9 protein by providing a source of ZIF-1. GFP fluorescence is observed in microtubules. Reference: Magescas J, et al. eLife. 2019 Jun 27;8:e47867. doi: 10.7554/eLife.47867. PMID: 31246171.

ZF1-degron, GFP, and 3xFLAG tags inserted into endogenous air-1 locus. No overt phenotypes in a zif-1(gk117) background. Predicted no degradation because zif-1 putative null is present. Can be used for degradation of air-1 protein by providing a source of ZIF-1. GFP expression is observed in mitotic cells at the spindle poles and along microtubules. Reference: Sallee M, et al. PLoS Biol. 2018 Aug 6;16(8):e2005189. doi: 10.1371/journal.pbio.2005189. PMID: 30080857.

ZF1-degron, GFP, and 3xFLAG tags inserted into endogenous par-6 locus. No overt phenotypes in a zif-1(gk117) background. Predicted no degradation because zif-1 putative null is present. Can be used for degradation of par-6 by providing ZIF-1. GFP fluorescence is observed at the anterior cortex in zygotes and at apical surfaces in epithelia. Reference: Sallee M, et al. eLife. 2021 Jun 17;10:e64437. doi: 10.7554/eLife.64437. PMID: 34137371.

ZF1-degron, GFP, and 3xFLAG tags inserted into endogenous tpxl-1 locus. No overt phenotypes in a zif-1(gk117) background. Predicted no degradation because zif-1 putative null is present. Can be used for degradation of tpxl-1 protein by providing a source of ZIF-1. GFP expression is observed in microtubules. Reference: Magescas J, et al. eLife. 2019 Jun 27;8:e47867. doi: 10.7554/eLife.47867. PMID: 31246171.

ZF1-degron and GFP tags inserted into endogenous gip-1 locus. No overt phenotypes in a zif-1(gk117) background. Predicted no degradation because zif-1 putative null is present. Can be used for degradation of gip-1 protein by providing a source of ZIF-1. GFP fluorescence is observed at microtubule-organizing centers. Presence of ZF1-degron targets tagged proteins for ZIF-mediated degradation. Expression of ZIF-1 causes the tagged GIP-1 protein to be degraded. Reference: Sallee M, et al. PLoS Biol. 2018 Aug 6;16(8):e2005189. doi: 10.1371/journal.pbio.2005189. PMID: 30080857.

Phenotypically normal except that it does not show ges-1 activity. Mutations (ca6ca7) are presumably misense or nonsense but have not been characterized genetically.

Presumptive null allele of plc-1. Shows a preference for low salt concentrations. Reference: Kunitomo H, et al., 2013, Nat Commun. 2013;4:2210. doi: 10.1038/ncomms3210.

No apparent phenotype. tm748 is a UV/TMP-induced gap-2 deletion allele generated by National Bioresource Project (see http://shigen.lab.nig.ac.jp/c.elegans/index.jsp?lang=englis h for info).

peIs1709 [gpc-1p::FLAG::pab-1::sl2::NLS::GFP + unc-122p::mCherry]. FLAG-tagged poly(A)-binding protein (PAB-1) can be used for mRNA tagging. Reference: Tomioka M, et al. Nat Commun. 2016 May 20;7:11645. PMID: 27198602

peIs1710 [glr-1p::FLAG::pab-1::sl2::NLS::GFP + unc-122p::mCherry]. FLAG-tagged poly(A)-binding protein (PAB-1) can be used for mRNA tagging. Reference: Tomioka M, et al. Nat Commun. 2016 May 20;7:11645. PMID: 27198602

peIs1713 [sra-6p::mCasp-1 + unc-122p::mCherry]. ASH neurons are eliminated. Abnormal odor chemotaxis. Reference: Yoshida K, et al. Nat Commun. 2012 Mar 13;3:739.