Search Strains

Endogenous let-653 locus tagged with SfGFP using CRISPR/Cas9. Superficially wild-type. Reference: Cohen JD, et al. Elife. 2020 Sep 25;9:e57874. PMID: 32975517.

Endogenous let-4 locus tagged with mCherry using CRISPR/Cas9. mCherry expression is faint. Superficially wild-type. Reference: Cohen JD, et al. Elife. 2020 Sep 25;9:e57874. PMID: 32975517.

Nonsense allele. Mildly Unc, low percentage larval lethal, low percentage Egl.

Temperature sensitive missense allele. Larval lethal and Vul at 25C. About WT at 20C. Previously called let-341.

Weak hypomorphic allele. Cold-sensitive. Egl, Pvul and sterile at 20C.

qIs48 is an insertion of ccEx9747 with markers: myo-2::GFP expressed brightly in the pharynx throughout development, pes-10::GFP expressed in embryos, and a gut promoter driving GFP in the intestine, and is homozygous lethal. Segregates WT glowing hets, non-glowing steriles (germ cells in oogenesis arrested in pachytene), very rare homozygous hT2 glowing animals, and dead eggs. Vulval development in ksr-2 animals appears normal. The molecular lesion of dx27 is a 285 base deletion. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype.

sur-6(sv30) homozygotes are viable but segregate 100% dead embryos, and are GFP-. Weak Vulvaless and Unc. Maintain strain by picking GFP+ heterozygotes. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype.

Him strain. Superficially wild-type. References: Portman and Emmons Dev Bio (2004) & Miller and Portman Mod & Mech (2010).

Him strain. Superficially wild-type. References: Portman and Emmons Dev Bio (2004) & Miller and Prtman Mod & Mech (2010).

Him strain. Superficially wild-type. Males have mating (response) defect but are fertile; otherwise superficially wild-type. Reference: Miller and Prtman Mod & Mech (2010).

utkEx6 [mbr-1p::GFP + rol-6(su1006)]. Rollers.

utkEx7 [mbr-1p::GFP + cwn-1p(1.4kb)::cwn-1 + rol-6(su1006)]. Rollers.

utkEx8 [mbr-1p::GFP + cwn-1p(0.7kb)::cwn-1 + rol-6(su1006)]. Rollers.

utkEx9 [mbr-1p::GFP + cwn-1p(170bp)::cwn-1 + rol-6(su1006)]. Rollers.

utkEx10 [mbr-1p::GFP + cwn-2p(4.0kb)::cwn-2 + rol-6(su1006)]. Rollers.

utkEx11 [mbr-1p::GFP + cwn-2p(2.1kb)::cwn-2 + rol-6(su1006)]. Rollers.

utkEx12 [mbr-1p::GFP + cwn-2p(0.8kb)::cwn-2 + rol-6(su1006)]. Rollers.

utkEx13 [mbr-1p::GFP + H20::cwn-1 + H20::cwn-2 + rol-6(su1006)]. Rollers.

utkEx14 [mbr-1p::GFP + cwn-1p(1.8kb)::cwn-1 + rol-6(su1006)]. Rollers.

utkEx15 [mbr-1p::GFP + cwn-1p(5.8kb)::cwn-2 + rol-6(su1006)]. Rollers.

utkEx2 [mbr-1p::GFP + rol-6(su1006)]. Rollers.

utkEx3 [mbr-1p::GFP + rol-6(su1006)]. Rollers.

utkEx4 [mbr-1p::GFP + rol-6(su1006)]. Rollers.

Superficially wild-type. nar13 was derived by excision of UTR43(nar12) cassette by heat shock. Tagged endogenous PAR-4A & C: weak, ubiquitous fluorescence. Reference: Roy et al. microPublication Biology. https://www.micropublication.org/roy_2018_mngpar-4.html

Heterozygotes are GFP+, and segregate non-GFP hermaphrodites which give only dead eggs. sun-1 is also called mtf-1.

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.

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.

Homozygous lethal mutation balanced by bli-4- and GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP sv42 homozygotes (scrawny, arrests late larva or sterile adult). Homozygous hT2[bli-4 let-? qIs48] inviable. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Pick WT GFP 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

vbaIs52 [eef-1A.1p::YFP::nrde-3] II. Maintain at 20C or cooler; germline mortal (Mrt) at 25C. YFP::NRDE-3 localizes to the cytoplasm, except in the germline, early embryo, and intestine. Upon introduction of dsRNA, YFP::NRDE-3 labels transcription sites of dsRNA gene targets. Superficially wild-type. Reference: Toudji-Zouaz A, et al. Nucleic Acids Research. 2021 Jun 9;gkab469. doi: 10.1093/nar/gkab469. PMID: 34107044.

vbaIs53 [rps-27p::mNeonGreen::Flag::nrde-3] II. Maintain at 20C or cooler; germline mortal (Mrt) at 25C. mNG::NRDE-3 localizes to the cytoplasm. Upon introduction of dsRNA, mNG::NRDE-3 labels transcription sites of dsRNA gene targets. Superficially wild-type. Reference: Toudji-Zouaz A, et al. Nucleic Acids Research. 2021 Jun 9;gkab469. doi: 10.1093/nar/gkab469. PMID: 34107044.

vbaIs56 [eef-1A.1p::VenusN::nrde-3] I. vbaIs55 [eef-1A.1p::VenusC::nrde-3] II. Maintain at 20C or cooler; germline mortal (Mrt) at 25C. N-terminal and C-terminal fragments of the fluorescent protein Venus are fused to NRDE-3 to facilitate trimolecular fluorescence complementation. In the cytoplasm or nucleus, local concentration of NRDE-3 molecules does not allow fluorescence complementation, thus reducing background fluorescence; once bound on the target transcript, VenusN::NRDE-3 and VenusC::NRDE-3 are in sufficient proximity to allow for fluorescence complementation, labeling transcription sites of dsRNA gene targets. Superficially wild-type. Reference: Toudji-Zouaz A, et al. Nucleic Acids Research. 2021 Jun 9;gkab469. doi: 10.1093/nar/gkab469. PMID: 34107044.

vbaIs54 [eef-1A.1p::YFP::nrde-3::SL2::sid-1] II. YFP::NRDE-3 localizes to the cytoplasm in most somatic tissues and upon exposure to dsRNA targetting a gene, moves to the nucleus in cells expressing the transgene. Superficially wild-type. Reference: Toudji-Zouaz A, et al. Nucleic Acids Research. 2021 Jun 9;gkab469. doi: 10.1093/nar/gkab469. PMID: 34107044.

C04E6.5. Superficially wild type. 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

T16A1.7. Superficially wild type. 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

B0511.4. Superficially wild type. 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

Y38F2AL.4. Superficially wild type. External left primer: GGTGAAAAATCGGGGAAAAT. External right primer: GCGATGACAACTATTGGGCT. Internal left primer: TTTAGCTCAAAATTTGCCCG. Internal right primer: ATGTGCTGCGACTTCCTTCT. Internal WT amplicon: 2580 bp. Deletion size: 710 bp. 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

R06F6.1, R06F6.11. Superficially wild type. 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

R10E11.1. Homozygous lethal deletion chromosome balanced by bli-4- and GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, Bli non-GFP (hT2 homozygotes), and non-GFP ok1491 homozygotes (embryonic or early larval arrest). Homozygous hT2[bli-4 let-? qIs48] inviable. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Pick WT GFP 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

This strain is homozygous for two deletions plus unc-4(e120). The deletions were identified by comparative genome hybridization (CGH) of a mutangenized unc-4 line against N2. The deletion gk770 was confirmed by PCR and sequencing of the amplification product, and is detectable using the following primers. Left primer: GCGCATTTGCAACATCTCTA. Right primer: AACCTCAACGGAAACACTGG. WT amplicon: 1087 bp. Deletion size: 142 bp. Deletion left flank: CAGGTGAGCTTAAGCAGATTTTTTTTTGAA. Deletion right flank: GTGAGCCAAGTTAAACATTTGAAAATAATT. Insertion Sequence: GTGAGCCAAGTTGAACATTTGAAAATAAT. The deletion gkDf13 was not confirmed by PCR. CGH data indicates a maximum size of 7801 bp and a minimum size of 1357 bp. Left flanking probe: GTTTTATCTTTCGGCTTATTCAGAATAAATTATTGGTTCAGTTGTTTCAG. Left deleted probe: AGGAGAAGGAGATAAATGGTCTTGTAGACTGCGCAGCTAGGGAGAGAGAA. Right deleted probe: GAAGTTCTGAAGATTCAATTTTCAGTCTTACAATATTCAGTTCTCGTGTA. Right flanking probe: GTTGAATTTATTCGAATTTTGCAATTTCAGCAAAACACCTTTATCTTGGA. 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

C06B8.3. Superficially wild type. External left primer: GACATGGTTCTATCCGCCAG. External right primer: GCAGAAGGCAAAAGAGCATC. External WT amplicon: 452 bp. Deletion size: 81 bp. Deletion left flank: CTGTCAATGTGAACCCTGGACTGACGGAGT. Deletion right flank: AGGTCATTTGGGAGTCCTACAAACTTCTAA. 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

Y66H1A. Superficially wild type. 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

C55B7.4. Superficially wild type. 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

Million Mutation Project strain. This strain was isolated after UV/TMP mutagenesis of VC2010, propagated clonally through F10 to drive mutations to homozygosity, and subjected to whole-genome sequencing. It is homozygous for a large number of mutations determined from sequence data. It may also carry large copy number variations that are not homozygous. Alleles numbered between gk100000 and gk962522 are homozygous; those numbered from gk962523 up should be assumed to be non-homozygous. A graphical representation of these large copy number differences can be seen in the Plot section for each strain on the MMP web site ( http://genome.sfu.ca/mmp/). It also carries a homozygous deletion in M01D1.2 (gk1188), identified by CGH (Comparative Genome Hybridization). Minimum deletion size: 345 bp; maximum size 5952 bp. Left flanking probe: TGAAATCGGTGAGCTTTTGGTCTGGGTAAGCTCTCAGGAGGAGCCAGCCT. Right flanking probe: CTATTCAACCCCCATGCGTTGGATGAAGCCTTCCCAATGTCCAACCTTTA. Left deleted probe: AAGCCCTGCGATCACTGGTAAGCTCCTGATCACCCTATTACTTGCACAGT. Right deleted probe: AATCGCAGAGATTGTCAGCGACTTGAAGCTCGGCGGATTGGACAGGCCGT. Flanking sequences represent the nearest array oligo sequences present in the deletion chromsome on the basis of fluorescence ratio. These should not be considered hard breakpoints in the absence of actual sequence data. 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 WBPaper00042537

Million Mutation Project strain. This strain was isolated after UV/TMP mutagenesis of VC2010, propagated clonally through F10 to drive mutations to homozygosity, and subjected to whole-genome sequencing. It is homozygous for a large number of mutations determined from sequence data. It may also carry large copy number variations that are not homozygous. Alleles numbered between gk100000 and gk962522 are homozygous; those numbered from gk962523 up should be assumed to be non-homozygous. A graphical representation of these large copy number differences can be seen in the Plot section for each strain on the MMP web site ( http://genome.sfu.ca/mmp/). 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 WBPaper00042537

Million Mutation Project strain. This strain was isolated after UV/TMP mutagenesis of VC2010, propagated clonally through F10 to drive mutations to homozygosity, and subjected to whole-genome sequencing. It is homozygous for a large number of mutations determined from sequence data. It may also carry large copy number variations that are not homozygous. Alleles numbered between gk100000 and gk962522 are homozygous; those numbered from gk962523 up should be assumed to be non-homozygous. A graphical representation of these large copy number differences can be seen in the Plot section for each strain on the MMP web site ( http://genome.sfu.ca/mmp/). It also carries a homozygous deletion in B0310.1 (gk1191), identified by CGH (Comparative Genome Hybridization), which can be detected by PCR with the following primers. External left primer: GAATCCGAGAAAAGCGTCTG. External right primer: GATCTTTTGGCCTTTTGCTG. Internal left primer: TCATCCACGTAGACTTGCCA. Internal right primer: TTGCAATCCTGAAGCAAATG. Internal WT amplicon: 2706 bp. Maximum deletion size: 1911 bp. Minimum deletion size: 881 bp. The deletion was confirmed by PCR, but was not sequenced. Left flanking CGH probe: CAAAACGCGTGTTAACCCTGTGCCATCTGTCTGATCCGACTCAGAAAACA. Left deleted CGH probe: TTTCTGAATACAAGAGAAGAGCATAATGGGCGCTGATCTTCCACCGAAAT. Right deleted CGH probe: AATACATTTAAGCTACACACCTACTTGCCTGCTCTCAGTGTGACCGAAAA. Right flanking CGH probe: AAGTTTATGGGCCTGAAACAATTGTATTTTCGTATCTTGACATTGATAAA. Flanking sequences represent the nearest array oligo sequences present in the deletion chromsome on the basis of fluorescence ratio. These should not be considered hard breakpoints in the absence of actual sequence data. 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 WBPaper00042537

Million Mutation Project strain. This strain was isolated after UV/TMP mutagenesis of VC2010, propagated clonally through F10 to drive mutations to homozygosity, and subjected to whole-genome sequencing. It is homozygous for a large number of mutations determined from sequence data. It may also carry large copy number variations that are not homozygous. Alleles numbered between gk100000 and gk962522 are homozygous; those numbered from gk962523 up should be assumed to be non-homozygous. A graphical representation of these large copy number differences can be seen in the Plot section for each strain on the MMP web site ( http://genome.sfu.ca/mmp/). 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 WBPaper00042537

Million Mutation Project strain. This strain was isolated after UV/TMP mutagenesis of VC2010, propagated clonally through F10 to drive mutations to homozygosity, and subjected to whole-genome sequencing. It is homozygous for a large number of mutations determined from sequence data. It may also carry large copy number variations that are not homozygous. Alleles numbered between gk100000 and gk962522 are homozygous; those numbered from gk962523 up should be assumed to be non-homozygous. A graphical representation of these large copy number differences can be seen in the Plot section for each strain on the MMP web site ( http://genome.sfu.ca/mmp/). It also carries a homozygous deletion in F19C6.1 (gk1192), identified by CGH (Comparative Genome Hybridization), which can be detected by PCR with the following primers. External left primer: CGAACTCGCCGTTCTACTTC. External right primer: GTTTTAGCGGCTTCAACTGC. Internal left primer: CGTCCCTTGATTGGTTCATT. Internal right primer: GATTCTCATTGGCAGACGGT. Internal WT amplicon: 3924 bp. Approximate deletion size: 2575 bp. The deletion was confirmed by PCR, but was not sequenced. Left flanking CGH probe: TTCGTTCAAGCTTAATGTTTCAGCATGCCTCTTCTTGACTCGCTTCTTTT. Left deleted CGH probe: TCCGGTACCAATTGTCGACTTGCTACCATTTTACGACCGCACAACTAAAA. Right deleted CGH probe: TAGTGAGGGAACTGTAGATAATTCTTCCACTTTTTGCTTTTTCCTTTCTT. Right flanking CGH probe: TACCGTATTGGCAACGATATTTTCAATCTCCATGGTCCTATCGTGGCTGA. Flanking sequences represent the nearest array oligo sequences present in the deletion chromsome on the basis of fluorescence ratio. These should not be considered hard breakpoints in the absence of actual sequence data. 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 WBPaper00042537

Million Mutation Project strain. This strain was isolated after UV/TMP mutagenesis of VC2010, propagated clonally through F10 to drive mutations to homozygosity, and subjected to whole-genome sequencing. It is homozygous for a large number of mutations determined from sequence data. It may also carry large copy number variations that are not homozygous. Alleles numbered between gk100000 and gk962522 are homozygous; those numbered from gk962523 up should be assumed to be non-homozygous. A graphical representation of these large copy number differences can be seen in the Plot section for each strain on the MMP web site ( http://genome.sfu.ca/mmp/). 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 WBPaper00042537

Million Mutation Project strain. This strain was isolated after UV/TMP mutagenesis of VC2010, propagated clonally through F10 to drive mutations to homozygosity, and subjected to whole-genome sequencing. It is homozygous for a large number of mutations determined from sequence data. It may also carry large copy number variations that are not homozygous. Alleles numbered between gk100000 and gk962522 are homozygous; those numbered from gk962523 up should be assumed to be non-homozygous. A graphical representation of these large copy number differences can be seen in the Plot section for each strain on the MMP web site ( http://genome.sfu.ca/mmp/). 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 WBPaper00042537

Million Mutation Project strain. This strain was isolated after UV/TMP mutagenesis of VC2010, propagated clonally through F10 to drive mutations to homozygosity, and subjected to whole-genome sequencing. It is homozygous for a large number of mutations determined from sequence data. It may also carry large copy number variations that are not homozygous. Alleles numbered between gk100000 and gk962522 are homozygous; those numbered from gk962523 up should be assumed to be non-homozygous. A graphical representation of these large copy number differences can be seen in the Plot section for each strain on the MMP web site ( http://genome.sfu.ca/mmp/). 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 WBPaper00042537