Search Strains

Heterozygotes are WT and segregate WT, DpySteriles (qC1 homozygotes) and Sterile Uncs which have a head region that is broader than the tail region and have no postembryonic cell divisions. Previously called ncc-1(he24).

he25 is temperature sensitive. At 25C: Heterozygotes are WT and segregate WT, DpySteriles (qC1 homozygotes) and Sterile Uncs which have a head region that is broader than the tail region and have no postembryonic cell divisions. At 15C: Heterozygotes are WT and segregate WT, Dpy Steriles (qC1 homozygotes) and cdk-1 homozygotes which are slightly smaller than WT, complete nearly all cell divisions, are sterile and have less germ cells than N2 (sperm are present but no oocytes). Previously called ncc-1(he25).

Heterozygotes are WT and segregate WT, DpySteriles (qC1 homozygotes) and Sterile Uncs which have a head region that is broader than the tail region and have no postembryonic cell divisions. Previously called ncc-1(he26).

ccEx7271 [let-858::GFP + pha-1(+)]. This strain expresses nuclear-localized GFP in all somatic nuclei, but reduced or no GFP in germ cells. If maintained at 20C, pha-1(ts) genotype will select for transgenic animals. Germ cell expression can be observed when maintained at 25C. Germline transgene silencing is abnormal.

utdSi51[mex-5p::tomm-20(aa 1-55)::halotag::lov::tbb-2 3’UTR] II. Maintain at 23C and protect from light. Strain is sickly, seems to grow best and lay more eggs at 23C. Upon stimulation with 488nm light, the LOV-ePDZ optogenetic system will recruit mitochondria to the dynein heavy chain in the worm embryo. Embryonic cell divisions can be stopped by if mitochondrial recruitment is stimulated in early development. Room light can also induce mitochondria re-localization and cause infertility; store this strain in the dark. Reference: Fan X, et al. G3 (accepted).

Dpy. Unc.

uIs46 [rde-1p::mec-2(intron9)::rde-1) + ceh-22::GFP]. Temperature sensitive; maintain at 15 C. RNAi-sensitive at 15 C. Mechanosensory abnormal at 25 C. Uses the ninth intron of mec-2, whose splicing depends on mec-8, to produce temperature-sensitive expression and temperature-sensitive RNAi. Reference: Calixto et al. (2010) Nature Methods 7:407-11.

Heterozygotes are WT and throw WT and dead eggs. yDf9 homozygotes arrest as dead eggs.

Heterozygotes are DpyUnc and segregate DpyUnc and dead eggs.

non-Unc, somewhat Dpy hermaphrodites. Gives DpyUncs when yDp16 is lost.

Heterozygotes are WT hermphrodites whose progeny include WT hermaphrodites, Dpy hermaphrodites (mnDp66; yDf13 unc-1 dpy-3), WT males and Dpy males.

WT hermaphrodites whose progeny include WT hermaphrodites, Dpy hermaphrodites (mnDp66; unc-1 dpy-3), Unc hermaphrodites (yDp14; unc-1 dpy-3), DpyTra hermaphrodites (mnDp66/yDp14; yDf17), WT males, Unc males, and Dpy males. There are 2 types of WT hermaphrodites in this strain which are indistinguishable unless you score their offspring: mnDp66/yDp14; him-8; yDf17/unc-1 dpy-3 animals will have many WT males progeny; but mnDp66/yDp14; him-8; unc-1 dpy-3 animals will have primarily dpy male progeny [mnDp66/yDp14; unc-1 dpy-3 XO animals are mostly dead, but there are some escapers of lethality]. Maintain by picking L4 WT hermaphrodites and checking for correct segregation of progeny.

Dpy. Throws males. Pick L4 hermaphrodites to maintain. Reference: Yonker SA & Meyer BJ. Development. 2003 Dec;130(26):6519-32. TY3936 was derived in 2002 from TY1932 ncl-1(e1865) unc-36(e251); dpy-21(e428) X N2; cloned WT progeny, let self and picked Dpy animals, cloned and selfed, looked for absence of Unc progeny. TY1932 was frozen into TY collection in 1993; built from other strains derived original CB428 stock obtained & frozen in 1983.

Heterozygotes are WT and segregate WT, DpyUnc and dead eggs. Maintain by picking WT.

7xGFP11 tag inserted at 5' end of endogenous syd-2 locus. Reference: Kurashima M, et al. Genetics. 2025 Mar 17;229(3):iyae214. doi: 10.1093/genetics/iyae214. PMID: 39708832.

4xwrmScarlet11 tag inserted inserted at 5' end of rab-3b locus using CRISPR/Cas9. Insertion confirmed by sequencing. wrmScarlet11::RAB-3B shows smaller RAB-3 puncta compared to over-expression reporters. The fusion protein is likely non-functional as the strain shows strong aldicarb resistance; however, the localization pattern of 4×wrmScarlet::RAB-3 is similar to that of transgenically expressed RAB-3. 4×wrmScarlet11::rab-3b strain also labels rab-3a; it is possible that 4×wrmScarlet11 inserted in the middle of rab-3a isoform disrupts the functions of RAB-3 in neurotransmission. Reference: Kurashina M, et al. Genetics. 2025 Mar 17;229(3):iyae214. doi: 10.1093/genetics/iyae214. PMID: 39708832.

7xGFP11 tag inserted into endogenous elks-1 locus. ELKS-1::7xGFP localizes to tip of synapses similar to CLA-1. miz365 genotyping primers: F: TACCGGCTCCAGTGATTCC / R: tgtgtgccattggatgtgag (wt = 203bp, mutant = 676bp). Reference: Kurashima M, et al. Genetics. 2025 Mar 17;229(3):iyae214. doi: 10.1093/genetics/iyae214. PMID: 39708832.

7xGFP11 tag inserted into endogenous unc-10 locus. Reference: Kurashima M, et al. Genetics. 2025 Mar 17;229(3):iyae214. doi: 10.1093/genetics/iyae214. PMID: 39708832.

7xGFP11 tag inserted into endogenous cla-1 locus. Reference: Kurashima M, et al. Genetics. 2025 Mar 17;229(3):iyae214. doi: 10.1093/genetics/iyae214. PMID: 39708832.

7xGFP11 tag inserted into 5' end of endogenous rimb-1 locus using CRISPR/Cas9. Reference: Kurashina M, et al. Genetics. 2025 Mar 17;229(3):iyae214. doi: 10.1093/genetics/iyae214. PMID: 39708832.

mizIs41 [mig-13p::mScarlet1-10::SL2::GFP1-10 + odr-1p::GFP]. 4xmScarlet11 tag inserted into endogenous sng-1 locus. miz488 genotyping primers: F: CGCACCTCCACCTCAATCC / R: AACACAACAAGACGGAAATACG. Reference: Kurashima M, et al. Genetics. 2025 Mar 17;229(3):iyae214. doi: 10.1093/genetics/iyae214. PMID: 39708832.

8xmScarlet11 tag inserted into endogenous cla-1 locus. Reference: Kurashima M, et al. Genetics. 2025 Mar 17;229(3):iyae214. doi: 10.1093/genetics/iyae214. PMID: 39708832.

8xwrmScarlet11 tag inserted at 5' end of endogenous syd-2 locus. Reference: Kurashima M, et al. Genetics. 2025 Mar 17;229(3):iyae214. doi: 10.1093/genetics/iyae214. PMID: 39708832.

Heterozygotes are WT and segregate WT, Uncs, and Pvul which are sterile.

maIs105 [col-19::GFP] V. zen25 is a V254I substitution mimicking human AGO1 V254I mutation. Reference: Duan Y, et al. Proc Natl Acad Sci USA. 2024 Mar 5;121(10):e2308255121. doi: 10.1073/pnas.2308255121. PMID: 38412125.

Maintain at 20C. zen18 is a H751L substitution mimicking human AGO1 H751L mutation. Adult zen18 mutants exhibit reduced or absent COL-19::GFP expression in Hyp7 cells. Defective vulval development and adult lethality are more penetrant at restrictive temperature (25C). Reference: Duan Y, et al. Proc Natl Acad Sci USA. 2024 Mar 5;121(10):e2308255121. doi: 10.1073/pnas.2308255121. PMID: 38412125.

zen25 is a V254I substitution mimicking human AGO1 V254I mutation. Reference: Duan Y, et al. Proc Natl Acad Sci USA. 2024 Mar 5;121(10):e2308255121. doi: 10.1073/pnas.2308255121. PMID: 38412125.

Maintain at 20C. maIs105 [col-19::GFP] V. zen18 is a H751L substitution mimicking human AGO1 H751L mutation. Adult zen18 mutants exhibit reduced or absent COL-19::GFP expression in Hyp7 cells. Defective vulval development and adult lethality are more penetrant at restrictive temperature (25C). Reference: Duan Y, et al. Proc Natl Acad Sci USA. 2024 Mar 5;121(10):e2308255121. doi: 10.1073/pnas.2308255121. PMID: 38412125.

xtEx84 [ftn-1p(DR1m)::pes-10::GFP-his + pha-1(+)]. Wild type. Segregates WT and arrested L1 progeny. Maintain at 20-24C.

xtEx88 [ftn-1p(DR2m)::pes-10::GFP-his + pha-1(+)]. Wild type. Segregates WT and arrested L1 progeny. Maintain at 20-24C.

xtEx94 [ftn-1p(DR3m)::pes-10::GFP-his + pha-1(+)]. Wild type. Segregates WT and arrested L1 progeny. Maintain at 20-24C.

xtEx257 [ftn-1p(DR123m)::pes-10::GFP-his + pha-1(+)]. Wild type. Segregates WT and arrested L1 progeny. Maintain at 20-24C.

xtEx448 [ftn-1p(DR123ACm)::pes-10::GFP-his + pha-1(+)]. Wild type. Segregates WT and arrested L1 progeny. Maintain at 20-24C.

xtEx61 [ftn-1p(G1m)::pes-10::GFP-his + pha-1(+)]. Wild type. Segregates WT and arrested L1 progeny. Maintain at 20-24C.

xtEx66 [ftn-1p(G2m)::pes-10::GFP-his + pha-1(+)]. Wild type. Segregates WT and arrested L1 progeny. Maintain at 20-24C.

xtEx72 [ftn-1p(G12m)::pes-10::GFP-his + pha-1(+)]. Wild type. Segregates WT and arrested L1 progeny. Maintain at 20-24C.

xtEx79 [pes-10(+63)::GFP-his + pha-1(+)]. Wild type. Segregates WT and arrested L1 progeny. Maintain at 20-24C.

Y54E2A.3. Apparent homozygous lethal deletion chromosome balanced by dpy-10-marked translocation. Heterozygotes are WT, and segregate WT, arrested mT1 aneuploids, sterile Dpys (mT1 homozygotes), and ok3305 homozygotes (arrest stage/phenotype undetermined). Pick WT and check for correct segregation of progeny to maintain. External left primer: AATTCGCTCAAAATCCATGC. External right primer: AAAATAAATGATGACGCGGG. Internal left primer: ATCAAAACAAATTCGGCCTG. Internal right primer: TTTTCACGAAAAATGTCGGTT. Internal WT amplicon: 1236 bp. Deletion size: 812 bp. Deletion left flank: CGCTGTATCTTTGGCGCGAAAATTTAGAAG. Deletion right flank: TTTAGCAATTTTTCAAAGCTTCTCACCATC. Insertion Sequence: CAATTTTTCAGCAATTTTAGCAA. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the international C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

Morphological markers unc-5 and dpy-11 balanced by GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP+, arrested nT1 aneuploid progeny, and GFP- unc-5; dpy-11 homozygotes. nT1[qIs51] homozygotes inviable. Pick GFP+ WT and check for correct segregation of progeny to maintain. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the International C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

hdEx81 [F25B3.3::tau352(PHP) + pha-1(+)]. Maintain at 25C to select for array. Animals become progressively uncoordinated with age. Reference: Brandt R, et al. Neurobiol Aging. 2009 Jan;30(1):22-33.

hdEx82 [F25B3.3::tau352(WT) + pha-1(+)]. Maintain at 25C to select for array. Animals become progressively uncoordinated with age. Reference: Brandt R, et al. Neurobiol Aging. 2009 Jan;30(1):22-33.

hdEx231 [C16C10.10::GFP + pha-1(+)]. Ubiquitous expression of glyoxalase-1::GFP. Maintain at 25 C. Reference: Morcos M et al. (2008) Aging Cell 7(2):260-9.

kbIs7 [nhx-2p::rde-1 + rol-6(su1006)]. Rollers. RNAi effective only in intestine. Maintain under normal conditions. Reference: Espelt MV, et al., J Gen Physiol. 2005 Oct;126(4):379-92.

Maintain at 20C. maIs105 [col-19::GFP] V. ma192 is a S750F substitution mimicking human AGO1 S750F mutation. Adult ma192 mutants exhibit reduced or absent COL-19::GFP expression in Hyp7 cells. Defective vulval development and adult lethality are more penetrant at restrictive temperature (25C). Reference: Duan Y, et al. Proc Natl Acad Sci USA. 2024 Mar 5;121(10):e2308255121. doi: 10.1073/pnas.2308255121. PMID: 38412125.

Maintain at 20C. maIs105 [col-19::GFP] V. ma443 is a G199S substitution mimicking human AGO1 G199S mutation. Adult ma443 mutants exhibit reduced or absent COL-19::GFP expression in Hyp7 cells. Defective vulval development and adult lethality are more penetrant at restrictive temperature (25C). Reference: Duan Y, et al. Proc Natl Acad Sci USA. 2024 Mar 5;121(10):e2308255121. doi: 10.1073/pnas.2308255121. PMID: 38412125.

Maintain at 20C. ma443 is a G199S substitution mimicking human AGO1 G199S mutation. Adult ma443 mutants exhibit reduced or absent COL-19::GFP expression in Hyp7 cells. Defective vulval development and adult lethality are more penetrant at restrictive temperature (25C). Reference: Duan Y, et al. Proc Natl Acad Sci USA. 2024 Mar 5;121(10):e2308255121. doi: 10.1073/pnas.2308255121. PMID: 38412125.

Maintain at 20C. maIs105 [col-19::GFP] V. ma447 is a F180(deletion) mimicking human AGO1 F180 mutation. Adult ma447 mutants exhibit reduced or absent COL-19::GFP expression in Hyp7 cells. Defective vulval development and adult lethality are more penetrant at restrictive temperature (25C). Reference: Duan Y, et al. Proc Natl Acad Sci USA. 2024 Mar 5;121(10):e2308255121. doi: 10.1073/pnas.2308255121. PMID: 38412125.

Maintain at 20C. ma447 is a F180(deletion) mimicking human AGO1 F180 mutation. Adult ma447 mutants exhibit reduced or absent COL-19::GFP expression in Hyp7 cells. Defective vulval development and adult lethality are more penetrant at restrictive temperature (25C). Reference: Duan Y, et al. Proc Natl Acad Sci USA. 2024 Mar 5;121(10):e2308255121. doi: 10.1073/pnas.2308255121. PMID: 38412125.

maIs103 [rnr::GFP + unc-36(+)].

maIs103[rnr::GFP + unc-36(+)]. Non-Unc. nrn::GFP is expressed in S phase cells.