Search Strains

Deletion of the operon CEOP 5400, removing both swan-1 and swan-2 (V: 13801593-13807217) and insertion of ATTTGTTCAGACAATAAGCTNGAAATC. No reported phenotype. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Deletion of the operon CEOP 5400, removing both swan-1 and swan-2 (V: 13801629-13807223). No reported phenotype. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Deletion/insertion (AGCTAGC) of a STOP codon/frameshift near the ATG between IV: 10128909...10128934. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Maintain at 20C. ax2033 was produced by replacing +16 to +42 with TCGACTCTCGAACGATCGTAATAG in the first exon of nos-2. ax2033 mutants are sterile when fed nos-1 dsRNA. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Maintain at 20-25C. ax2035 was produced by mutation of the sgRNA site and insertion of TetraCys tag at the C-terminus of gtbp-1. Substitution/insertion of the sequence GCAGCATCCTGGGCAGCAATTTTGTCCGGCATTTTGGAAACCGCTGCGCATTCCTCCAC GT between IV: 10127239...10127283. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Maintain at 20-25C. ax2037 was produced by mutation of the sgRNA site and insertion of Myc tag at the C-terminus of gtbp-1. Substitution/insertion of the sequence CAGATCCTCTTCTGATATCAGTTTTTGTTCATTTTGTCCCGCATTTTGGAAACCGCTAC GCATTCCTCCACGC between IV: 10127239...10127283. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Maintain at 20-25C. ax2039 was produced by insertion of 3xFLAG tag at the C-terminus of gtbp-1 by NHEJ. Substitution/insertion of the sequence CTTGTCATCGTCATCCTTGTAATCGATATCATGATCTTTATAATCACCGTCATGGTCTT TGTAGTCCTCCACGAGGAATGCGTGAGGAAATCGTGGA between IV: 10127239...10127269. Reference: Paix A, et al. Genetics. 2014 Sep 23.

V5 tag inserted at the N-terminus of mbk-2 isoform a. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Maintain at 20-25C. Insertion of GFP cDNA (from pCM1.53, no ATG/no STOP) at the C-terminus of gtbp-1 between IV: 10127266...10127267. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Maintain at 20-25C. Insertion of GFP cDNA (from pCM1.53, no ATG/no STOP) at the C-terminus of gtbp-1: ATTTTGTCCCGCATTTTGGAAACCGCTACGCATTCCTCCACGC(GFP) between IV: 10127239-10127283. sgRNA site was mutated to avoid Cas9 re-cutting. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Maintain at 20-25C. ax2057 was produced by mutation of the sgRNA site and insertion of GFP cDNA at the C-terminus of fbf-2. Insertion of GFP cDNA (from pCM1.53, no ATG/no STOP) at the C-terminus of fbf-2: ATCATCGCCGTGACTACCA(GFP) between II:6089145...6089165. sgRNA site was mutated to avoid Cas9 re-cutting. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Maintain at 20C. Insertion of GFP cDNA (from pCM1.53, no ATG/no STOP) at the C-terminus of mes-2 between II:14388297...14388298. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Maintain at 20C. Nuclear expression of lin-15B::GFP in oocytes and embryos. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Maintain at 20C. GFP inserted at N-terminus of deps-1. Reference: Paix A, et al. Genetics. 2014 Sep 23.

1.6kb deletion in gtbp-1 between IV: 10127264...10128913 and insertion of NheI restriction site (GCTAGC). Homozygous viable. Reference: Paix A, et al. Genetics. 2014 Sep 23.

Deletion removing 733 base pairs upstream of start and the first 2565 bases of the endogenous meg-4 locus. Reference: Wang JT, et al. eLife 2014;3:e04591.

GFP inserted at C terminus of endogenous pgl-1 locus. Reference: Putnam A, et al. Nat Struct Mol Biol. 2019 Mar;26(3):220-226.

GFP tag inserted at C-terminus of the endogenous meg-1 locus by CRISPR. Reference: Cassani M & Seydoux G. Development 2022 Nov 1;149(21):dev200920. doi: 10.1242/dev.200920. PMID: 36196602.

OLLAS tag inserted at C-terminus of the endogenous meg-1 locus by CRISPR. Reference: Cassani M & Seydoux G. Development 2022 Nov 1;149(21):dev200920. doi: 10.1242/dev.200920. PMID: 36196602.

Embryonic P granules not segregated, 30% maternal effect sterility on average, RNAi insensitivity. meg-3(ax3055) and meg-4(ax3052) are precise deletions of the entire coding sequence made by CRISPR/Cas9, designed to be cut again to make insertions at the endogenous locus. References: Smith, J. et al. Elife. 2016 Dec 3;5:e21337. doi: 10.7554/eLife.21337. PMID: 27914198 Ouyang JPT, et al. Dev Cell. 2019 Sep 23;50(6):716-728.e6. PMID: 31402283

P granule size reduced, detection of MEG-3 by anti-OLLAS antibody. References: Smith, J. et al. Elife. 2016 Dec 3;5:e21337. doi: 10.7554/eLife.21337. PMID: 27914198 Schmidt H, bioRxiv 2020.10.15.340570 (2020) doi:10.1101/2020.10.15.340570.

meGFP inserted between P121 and V122 of endogenous MEG-3. Reference: Putnam A, et al. Nat Struct Mol Biol. 2019 Mar;26(3):220-226. Smith et al. Elife. 2016 Dec 3;5. pii: e21337.

tagRFP tag inserted into endogenous gtbp-1 locus. meGFP tag inserted between P121 and V122 of endogenous MEG-3. Reference: Lee, CYS, et al. Elife. 020 Jan 24:9:e52896. doi: 10.7554/eLife.52896. PMID: 31975687.

meGFP tag inserted at C-terminus of endogenous mut-16 locus. Reference: Thomas, Bodas, and Seydoux (2025). "FG repeats drive co-clustering of nuclear pores and P granules in the C. elegans germline."

meGFP inserted between P121 and V122 of endogenous MEG-3. qIs51 [myo-2p::GFP + pes-10p::GFP + F22B7.9p::GFP]. Heterozygotes are wild-type GFP+ and segregate non-GFP par-1 homozygotes (viable, lay dead embryos), wild-type GFP+ heterozygotes, and arrested nT1[qIs51] aneuploids. Pick wild-type GFP+ and check for correct segregation of progeny to maintain. Replacement of threonine 983 with alanine eliminates PAR-1 asymmetry. Reference: Folkman AW & Seydoux G. Development. 2019 Mar 25;146(6):dev171116. doi: 10.1242/dev.171116. PMID: 30814118

meGFP tag inserted at C-terminus of endogenous par-1 locus. Reference: Folkman AW & Seydoux G. Development. 2019 Mar 25;146(6):dev171116. doi: 10.1242/dev.171116. PMID: 30814118

qIs51 [myo-2p::GFP + pes-10p::GFP + F22B7.9p::GFP]. Heterozygotes are wild-type GFP+ and segregate non-GFP par-1 homozygotes (viable, lay viable progeny that are completely sterile), wild-type GFP+ heterozygotes, and arrested nT1[qIs51] aneuploids. Pick wild-type GFP+ and check for correct segregation of progeny to maintain. par-1(ax4208) removes the KA1 domain from a GFP-tagged version of PAR-1. Reference: Folkman AW & Seydoux G. Development. 2019 Mar 25;146(6):dev171116. doi: 10.1242/dev.171116. PMID: 30814118

mCherry inserted at C terminus of endogenous meg-3 locus. fog-2(q71) is male/female strain. Maintain by mating. XX animals are female. XO animals are WT males. Reference: Putnam A, et al. Nat Struct Mol Biol. 2019 Mar;26(3):220-226.

mCherry inserted at C terminus of endogenous pgl-3 locus. fog-2(q71) is male/female strain. Maintain by mating. XX animals are female. XO animals are WT males. Reference: Putnam A, et al. Nat Struct Mol Biol. 2019 Mar;26(3):220-226.

qIs51 [myo-2p::GFP + pes-10p::GFP + F22B7.9p::GFP]. Heterozygotes are wild-type myo-2::GFP+ and segregate non-myo-2::GFP ax3050; ax4209 homozygotes (maternal effect lethal), wild-type myo-2::GFP+ heterozygotes, and arrested nT1[qIs51] aneuploids. Pick wild-type myo-2::GFP+ and check for correct segregation of progeny to maintain. References: Smith J, et al. eLife. 2016 Dec 3;5:e21337. doi: 10.7554/eLife.21337. PMID: 27914198. Folkman A, et al. Development. 2019 Mar 25;146(6):dev171116. doi: 10.1242/dev.171116. PMID: 30814118.

20% Maternal effect sterility on average, embryonic P granule defect, RNAi insensitivity. Engineered mutations in the endogenous meg-3 locus disrupt the binding and localization of PGL proteins to P granules in the early embryo while MEG-3 itself is still forms an asymmetric cytoplasmic gradient and granules. References: Smith, J. et al. Elife. 2016 Dec 3;5:e21337. doi: 10.7554/eLife.21337. PMID: 27914198 Schmidt H, bioRxiv 2020.10.15.340570 (2020) doi:10.1101/2020.10.15.340570.

bqSi189 [lmn-1p::mCherry::his-58::pie-1 3'utr] II. mNeonGreen is inserted at the N-terminus of the endogenous npp-10 locus. bqSi189 is a single-copy MosSCI insertion into ttTi5605. Reference: Thomas et al. 2022. Cytoplasmic nucleoporin foci are stress-sensitive, non-essential condensates in C. elegans

OLLAS is inserted at the C-terminus of the endogenous npp-14 locus. Reference: Thomas et al. 2022. Cytoplasmic nucleoporin foci are stress-sensitive, non-essential condensates in C. elegans

ax4523 is a deletion residues 24-1387 of the npp-14 coding region. Reference: Thomas et al. 2022. Cytoplasmic nucleoporin foci are stress-sensitive, non-essential condensates in C. elegans

wrmScarlet is inserted at the C-terminus of the endogenous tdp-1 locus. Reference: Thomas et al. 2022. Cytoplasmic nucleoporin foci are stress-sensitive, non-essential condensates in C. elegans

wrmScarlet is inserted at the C-terminus of the endogenous ran-2 locus. Reference: Thomas et al. 2022. Cytoplasmic nucleoporin foci are stress-sensitive, non-essential condensates in C. elegans

bqSi189 [lmn-1p::mCherry::his-58::pie-1 3'utr] II. mNeonGreen is inserted at the N-terminus of the endogenous npp-9 locus. bqSi189 is a single-copy MosSCI insertion into ttTi5605. Reference: Thomas et al. 2022. Cytoplasmic nucleoporin foci are stress-sensitive, non-essential condensates in C. elegans

ax4544 is a CRISPR-engineered null mutant of npp-12. Reference: Thomas, Bodas, and Seydoux (2025). "FG repeats drive co-clustering of nuclear pores and P granules in the C. elegans germline."

bqSi189 [lmn-1p::mCherry::his-58::pie-1 3'utr] II. mNeonGreen is inserted at the C-terminus of the endogenous xpo-1 locus. bqSi189 is a single-copy MosSCI insertion into ttTi5605. Reference: Thomas et al. 2022. Cytoplasmic nucleoporin foci are stress-sensitive, non-essential condensates in C. elegans

3xFlag tag inserted at C-terminus of endogenous pgl-3 locus. Inserted into parental strain JH3503 meg-3(ax3054[meg-3::meGFP]). Reference: Ouyang JPT, et al. Nature Cell Biology 2022 (24)1129–1140. DOI: 10.1038/s41556-022-00940-w.

3xFlag tag inserted at truncated C-terminus of endogenous pgl-3 locus. Inserted into parental strain JH3503 meg-3(ax3054[meg-3::meGFP]). Reference: Ouyang JPT, et al. Nature Cell Biology 2022 (24)1129–1140. DOI: 10.1038/s41556-022-00940-w.

wrmScarlet is inserted at the C-terminus of the endogenous npp-11 locus. Reference: Thomas et al. 2022. Cytoplasmic nucleoporin foci are stress-sensitive, non-essential condensates in C. elegans

wrmScarlet is inserted at the C-terminus of the endogenous npp-22 locus. Reference: Thomas et al. 2022. Cytoplasmic nucleoporin foci are stress-sensitive, non-essential condensates in C. elegans

mNeonGreen tag inserted at the C-terminus of the endogenous npp-12 locus. Reference: Thomas L, et al. EMBO J. 2023 Jul 3;42(13):e112987. doi: 10.15252/embj.2022112987. PMID: 37254647.

mNeonGreen tag inserted at the C-terminus of the endogenous npp-14 locus. NPP-14::mNeonGreen is expressed in all tissues. Reference: Thomas L, et al. Development. 2025 Mar 15;152(6):dev204585. doi: 10.1242/dev.204585. PMID: 40067309.

mNeonGreen tag inserted at N-terminus of endogenous imb-1 locus. Expressed in all tissues. Reference: Thomas, Bodas, and Seydoux (2025). "FG repeats drive co-clustering of nuclear pores and P granules in the C. elegans germline."

wrmScarlet tag inserted at C-terminus of endogenous nucl-1 locus. Reference: Thomas, Bodas, and Seydoux (2025). "FG repeats drive co-clustering of nuclear pores and P granules in the C. elegans germline."

AID*::3xFLAG tags inserted at C-terminus of endogenous npp-11 locus. AID* is a minimal AID construct of 44 amino acids (https://academic.oup.com/genetics/article/217/3/iyab006/6104563). Reference: Thomas, Bodas, and Seydoux (2025). "FG repeats drive co-clustering of nuclear pores and P granules in the C. elegans germline."

ax4587 is a CRISPR-engineered deletion removing the FGG repeats of GLH-1. Reference: Thomas, Bodas, and Seydoux (2025). "FG repeats drive co-clustering of nuclear pores and P granules in the C. elegans germline."

wrmScarlet tag inserted at C-terminus of endogenous car-1 locus. Reference: Thomas, Bodas, and Seydoux (2025). "FG repeats drive co-clustering of nuclear pores and P granules in the C. elegans germline."