Search Strains

hpEx4362 [flp-18p::cha-1(sense) + twk-40p::cha-1(antisense) + ttx-3p::GFP]. Pick animals with GFP expression in AIY to maintain. Transgenic animals exhibit reduced forward speed and body bending; this phenotype is not fully penetrate.

hpIs758 [rig-3p::LoxP::eBFP::LoxP::Chrimson::wCherry + twk-40p(short)::Cre + myo-2p::wCherry]. hpIs814 [flp-18p::LoxP::eBFP::Stop::LoxP::TeTx::wCherry + twk-40p(short)::Cre]. RFP positive in AVA soma and neurite along the VNC. Weak pharyngeal RFP. Flat and slow movement without ATR or LED stimulation. Chrimson activation induces loopy reversal but not loopy forward after 5min.

hpIs860 [twk-40p(short)::eGFP + myo-2p::wCherry]. Cytosolic GFP expression in AVA, AVE & AVB in the head, with the strongest signal in AVA. Additional fluorescent signal in RVG (SAB) and tail (DVA).

hpIs860 [twk-40p(short)::eGFP + myo-2p::wCherry]. twk-40 gain-of-function allele. Paralyzed, no backward movement upon head touch. Cytosolic GFP expression in AVA, AVE & AVB in the head, with the strongest signal in AVA. Additional fluorescent signal in RVG (SAB) and tail (DVA).

hpIs860 [twk-40p(short)::eGFP + myo-2p::wCherry]. Loopy movement with increased reversals. Cytosolic GFP expression in AVA, AVE & AVB in the head, with the strongest signal in AVA. Additional fluorescent signal in RVG (SAB) and tail (DVA).

hpEx4479 [npr-4p::snb-1::pHluorin + lin-15(+)]. Pick animals with green fluorescence in VNC to maintain. twk-40(bln336) is a gain-of-function allele. Paralyzed; no backward movement upon head touch. Synapse exocytosis marker for AVA. Transgenic animals exhibit punctate fluorescent signals along AVA neurites in the ventral cord, with weaker expression than in a wild-type background.

hpEx4479 [npr-4p::snb-1::pHluorin + lin-15(+)]. Pick animals with green fluorescence in VNC to maintain. twk-40(hp834) is a loss-of-function allele. Loopy. Synapse exocytosis marker for AVA. Transgenic animals exhibit punctate fluorescent signals along AVA neurites in the ventral cord, with stronger expression than in a wild-type background.

hpIs636 [rig-3p::HisCl1::SL2::mCherry]. hpEx4479 [npr-4p::snb-1::pHluorin + lin-15(+)]. Pick animals with green fluorescence in VNC to maintain. Synapse exocytosis marker in AVA. Transgenic animals exhibit punctate green fluorescent signals along AVA neurites in the ventral cord, with stronger expression than in a wild-type background. mCherry and HisCl1 expression in AVA soma and neurites. In the presence of histamine, the SNB-1::pHluorin intensity will decrease in neurites.

juIs1 [unc-25p::snb-1::GFP + lin-15(+)] IV. Temperature-sensitive Daf-c. GFP punctae are relatively normal in dauers. Maintain at 15C. Reference: Hung WL, et al. EMBO J. 2013 Jun 12;32(12):1745-60.

hpIs202 [ceh-10p::GFP + lin-15(+)]. GFP is expressed by four neurons RID, AIY, CAN, ALA, and one sheath cell. References: Wang et al., 2015. Development 142(8):1447-57. doi: 10.1242/dev.119479. Lim et al., 2016. Elife 5. pii: e19887. doi: 10.7554/eLife.19887.

hpDf761 removes ins-4, ins-5, and ins-6. Reference: Hung WL, et al. EMBO J. 2013 Jun 12;32(12):1745-60.

hpIs363 [sra-11p::ChR2::YFP + ttx-3p::RFP]. YFP expression in AVA. RFP expression in AIY. Reference: Lu Y, et al. 2022. Current Biology (In Press).

fjSi1 [2×FLAG::csr-1 + Cbr-unc-119(+)] II. Single-copy insertion in the MosSCI locus ttTi5605 (LG II). The 2×FLAG::csr-1 transgene was designed to express proteins with a double FLAG tag instead of the N169 of CSR-1a and N6 of CSR-1b. The linker sequence between the two FLAG tags has a NotI site. The insertion can be checked by PCR with the following primers: CACACTCGATTCTACGCCAA (at the 3'-side of csr-1) and ATCGGGAGGCGAACCTAACTG (near ttTi5605 on LG II). Reference: Tabara H, et al. (2023) A small RNA system ensures accurate homologous pairing and unpaired silencing of meiotic chromosomes. EMBO J, e105002.

fjSi3 [HA_2×FLAG::C04F12.1 + Cbr-unc-119(+)] II. Single-copy insertion in the MosSCI locus ttTi5605 (LG II). The HA_2×FLAG::C04F12.1 transgene was designed to express a protein with an HA tag and a double FLAG tag inserted after S21 of C04F12.1. The linker sequence between the HA tag and the double FLAG tag has a NotI site. The insertion can be checked by PCR with the following primers: GGAGCCGATTTGTTCCAGTC (at the 3'-side of C04F12.1) and ATCGGGAGGCGAACCTAACTG (near ttTi5605 on LG II). vsra-1 is also known as csr-2/C04F12.1. Reference: Tabara H, et al. (2023) A small RNA system ensures accurate homologous pairing and unpaired silencing of meiotic chromosomes. EMBO J, e105002.

Four amino-acid residues (G24–V27) near the N-terminus of EGO-1 were replaced with a PA-tag sequence (GVAMPGAEDDVV derived from human podoplanin) in the endogenous ego-1 gene. The PA-tag insertion can be checked by PCR with the following primers: TTCAAAATGCCGCTGCCTTC and GTCCTCTTCGCATCTTTATCAG, followed by digestion with Sau96I. The wild-type ego-1 gene contains a Sau96I site within its PCR region, while the PA-tagged ego-1 does not. This strain was used for immunofluorescence analysis of EGO-1. Reference: Tabara H, et al. (2023) A small RNA system ensures accurate homologous pairing and unpaired silencing of meiotic chromosomes. EMBO J, e105002.

fjSi19 [rpl-21p::2×HA::C04F12.1 + Cbr-unc-119(+)] II. Single-copy insertion in the MosSCI locus ttTi5605 (LG II). The 2×HA::C04F12.1 transgene was designed to express a protein with a double HA tag at its N-terminus, using a strong ubiquitous promoter (rpl-21p). The linker sequence between the two HA tags has a NotI site. The insertion can be checked by PCR with the following primers: GGAGCCGATTTGTTCCAGTC (at the 3'-side of C04F12.1) and ATCGGGAGGCGAACCTAACTG (near ttTi5605 on LG II). vsra-1 is also known as csr-2/C04F12.1. Reference: Tabara H, et al. (2023) A small RNA system ensures accurate homologous pairing and unpaired silencing of meiotic chromosomes. EMBO J, e105002.

CeRep55 quadruple deletion: fjDf1 (also known as fj115); fjDf2 (aka fj85); fjDf3 (aka fj123); fjDf4 (aka fj120) X. This strain lacks four major clusters of CeRep55 repeats on the X chromosome. The condensation of unpaired X chromosomes in male testes is insufficient. CeRep55 is a class of minisatellite sequences consisting of a 27-nt tandem repeat that is present on all chromosomes. Some CeRep55 clusters express long non-coding RNAs and small RNAs. Each of the four deletion sites was designed to acquire a sequence tag (TGTACAGGAAACAGCTATGACC; similar to M13 reverse) instead of the CeRep55 tandem repeats. The deletions of CeRep55 clusters can be checked by PCR with the following primers: fjDf1 in Y73B3A, AGTAGTTACAAAGCGATATACGAAC and TTCGCCGACTCATAGACATCTG; fjDf2 in Y75D11A, CAAGTGCCAAACTAGACTGCTC and TTCAAAACGCTACGCGATACCAG; fjDf3 in Y81B9A, AAATGCCCCTATCTCACAGTGG and GACTGCTAGAATCTGACTCGTC; fjDf4 in Y49A10A, CTCTTCCATTTCCAGTACAACCAG and GTTTCTATGGCTAGAGTCGTATGGTTAC. The PCR check can also be performed with the M13 reverse primer and the right-side primer. Reference: Tabara H, et al. (2023) A small RNA system ensures accurate homologous pairing and unpaired silencing of meiotic chromosomes. EMBO J, e105002.

fj150 is a mutation changing WK to FS and generating a new FspI site in the second K-rich region between the PAZ and Piwi domains. fj150 is enhanced by the CeRep55 quadruple deletion. The fj150 mutation can be detected by PCR with the following primers: TCGGATGTTGACTACAACGC and GAAGGTAGAAACTTCATTCCAGCAC, followed by digestion with FspI. This strain lacks four major clusters of CeRep55 repeats on the X chromosome. The condensation of unpaired X chromosomes in male testes is insufficient. CeRep55 is a class of minisatellite sequences consisting of a 27-nt tandem repeat that is present on all chromosomes. Some CeRep55 clusters express long non-coding RNAs and small RNAs. Each of the four deletion sites was designed to acquire a sequence tag (TGTACAGGAAACAGCTATGACC; similar to M13 reverse) instead of the CeRep55 tandem repeats. The deletions of CeRep55 clusters can be checked by PCR with the following primers: fjDf1 in Y73B3A, AGTAGTTACAAAGCGATATACGAAC and TTCGCCGACTCATAGACATCTG; fjDf2 in Y75D11A, CAAGTGCCAAACTAGACTGCTC and TTCAAAACGCTACGCGATACCAG; fjDf3 in Y81B9A, AAATGCCCCTATCTCACAGTGG and GACTGCTAGAATCTGACTCGTC; fjDf4 in Y49A10A, CTCTTCCATTTCCAGTACAACCAG and GTTTCTATGGCTAGAGTCGTATGGTTAC. The PCR check can also be performed with the M13 reverse primer and the right-side primer. Reference: Tabara H, et al. (2023) A small RNA system ensures accurate homologous pairing and unpaired silencing of meiotic chromosomes. EMBO J, e105002.

The CeRep55_X quadruple-deletion mutant does not exhibit a clear Him phenotype, but the Him phenotype of the him-1(e879) mutant is enhanced by the CeRep55_X quadruple deletions. CeRep55 quadruple deletion: fjDf1 (also known as fj115); fjDf2 (aka fj85); fjDf3 (aka fj123); fjDf4 (aka fj120) X. This strain lacks four major clusters of CeRep55 repeats on the X chromosome. The condensation of unpaired X chromosomes in male testes is insufficient. CeRep55 is a class of minisatellite sequences consisting of a 27-nt tandem repeat that is present on all chromosomes. Some CeRep55 clusters express long non-coding RNAs and small RNAs. Each of the four deletion sites was designed to acquire a sequence tag (TGTACAGGAAACAGCTATGACC; similar to M13 reverse) instead of the CeRep55 tandem repeats. The deletions of CeRep55 clusters can be checked by PCR with the following primers: fjDf1 in Y73B3A, AGTAGTTACAAAGCGATATACGAAC and TTCGCCGACTCATAGACATCTG; fjDf2 in Y75D11A, CAAGTGCCAAACTAGACTGCTC and TTCAAAACGCTACGCGATACCAG; fjDf3 in Y81B9A, AAATGCCCCTATCTCACAGTGG and GACTGCTAGAATCTGACTCGTC; fjDf4 in Y49A10A, CTCTTCCATTTCCAGTACAACCAG and GTTTCTATGGCTAGAGTCGTATGGTTAC. The PCR check can also be performed with the M13 reverse primer and the right-side primer. The e879 mutation can be checked by PCR with the following primers: AAATCAGGAGTGGGCATCAG and GGGAAGATTCCGATGAGTGA, followed by digestion with MvaI. The wild-type him-1 gene contains an MvaI site within its PCR region, while the e879 allele does not. Reference: Tabara H, et al. (2023) A small RNA system ensures accurate homologous pairing and unpaired silencing of meiotic chromosomes. EMBO J, e105002.

fj162 at the second K-rich region is an in-frame duplication (comprising of a small duplication and a tiny inverted duplication) generating 61 extra amino acids. The CeRep55_X quadruple-deletion mutant does not exhibit a clear Him phenotype, but the Him phenotype of the csr-1(fj162) mutant is enhanced by the CeRep55_X quadruple deletions. The fj162 mutation can be checked by PCR with the following primers: TCGGATGTTGACTACAACGC and GAAGGTAGAAACTTCATTCCAGCAC. This strain lacks four major clusters of CeRep55 repeats on the X chromosome. The condensation of unpaired X chromosomes in male testes is insufficient. CeRep55 is a class of minisatellite sequences consisting of a 27-nt tandem repeat that is present on all chromosomes. Some CeRep55 clusters express long non-coding RNAs and small RNAs. Each of the four deletion sites was designed to acquire a sequence tag (TGTACAGGAAACAGCTATGACC; similar to M13 reverse) instead of the CeRep55 tandem repeats. The deletions of CeRep55 clusters can be checked by PCR with the following primers: fjDf1 in Y73B3A, AGTAGTTACAAAGCGATATACGAAC and TTCGCCGACTCATAGACATCTG; fjDf2 in Y75D11A, CAAGTGCCAAACTAGACTGCTC and TTCAAAACGCTACGCGATACCAG; fjDf3 in Y81B9A, AAATGCCCCTATCTCACAGTGG and GACTGCTAGAATCTGACTCGTC; fjDf4 in Y49A10A, CTCTTCCATTTCCAGTACAACCAG and GTTTCTATGGCTAGAGTCGTATGGTTAC. The PCR check can also be performed with the M13 reverse primer and the right-side primer. Reference: Tabara H, et al. (2023) A small RNA system ensures accurate homologous pairing and unpaired silencing of meiotic chromosomes. EMBO J, e105002.

This strain carries a dpy-5 mutation to facilitate genome modification in CeRep55 quadruple deletion background: fjDf1 (also known as fj115); fjDf2 (aka fj85); fjDf3 (aka fj123); fjDf4 (aka fj120) X. This strain lacks four major clusters of CeRep55 repeats on the X chromosome. The condensation of unpaired X chromosomes in male testes is insufficient. CeRep55 is a class of minisatellite sequences consisting of a 27-nt tandem repeat that is present on all chromosomes. Some CeRep55 clusters express long non-coding RNAs and small RNAs. Each of the four deletion sites was designed to acquire a sequence tag (TGTACAGGAAACAGCTATGACC; similar to M13 reverse) instead of the CeRep55 tandem repeats. The deletions of CeRep55 clusters can be checked by PCR with the following primers: fjDf1 in Y73B3A, AGTAGTTACAAAGCGATATACGAAC and TTCGCCGACTCATAGACATCTG; fjDf2 in Y75D11A, CAAGTGCCAAACTAGACTGCTC and TTCAAAACGCTACGCGATACCAG; fjDf3 in Y81B9A, AAATGCCCCTATCTCACAGTGG and GACTGCTAGAATCTGACTCGTC; fjDf4 in Y49A10A, CTCTTCCATTTCCAGTACAACCAG and GTTTCTATGGCTAGAGTCGTATGGTTAC. The PCR check can also be performed with the M13 reverse primer and the right-side primer. Reference: Tabara H, et al. (2023) A small RNA system ensures accurate homologous pairing and unpaired silencing of meiotic chromosomes. EMBO J, e105002.

Pick wild-type Venus+ animals to maintain. coh-4(tm1857) coh-3(gk112) homozygotes exhibit defects in synaptonemal complex formation on meiotic chromosomes. Many of the progeny from coh-4 coh-3 homozygotes exhibit embryonic lethality, likely due to aneuploidy, but only a few progeny hatch and exhibit the Him phenotype. The coh-3 and coh-4 genes encode nearly identical meiosis-specific kleisins. The deletion mutations can be checked by PCR with the following primers: coh-4(tm1857): TACGCGGCACACATGGGTCT and CAATTCCCCCTAGACATACGATTC; coh-3(gk112): CTCGCAGCGATCGAGCAAGC and AACTGAACATGAGAGCCACGAAG. tmC16 homozygotes are Unc Venus(+). [NOTE: ZT73 with the inversion-based balancer is more amenable to producing coh-4 coh-3 homozygous mutant males than TY5120 with a translocation-based balancer.] Reference: Tabara H, et al. (2023) A small RNA system ensures accurate homologous pairing and unpaired silencing of meiotic chromosomes. EMBO J, e105002.

czIs110 [mex-5p::GFP::KDEL::pie-1 3’UTR + unc-119(+)]. GFP::KDEL is a marker of the luminal ER in the embryo. Reference: Lee et al., J Cell Biol. 2016 Sep 12;214(6):665-76.

zwIs108 [myo-3p::Myc::ryr-1 + myo-3p::GFP]. GFP is expressed in body muscles. Locomotion is similar to unc-68(r1162).

zwEx110 [inx-10p::GFP + lin-15(+)]. Pick non-Muv to maintain. Reference: Altun et al. Dev Dyn 238:1936-50 (2009).

zwEx112 [inx-12p::GFP + lin-15(+)]. Pick non-Muv to maintain. Reference: Altun et al. Dev Dyn 238:1936-50 (2009).

zwEx113 [inx-13p::GFP + lin-15(+)]. Pick non-Muv to maintain. Reference: Altun et al. Dev Dyn 238:1936-50 (2009).

zwEx114 [inx-14p::GFP + lin-15(+)]. Pick non-Muv to maintain. Reference: Altun et al. Dev Dyn 238:1936-50 (2009).

zwEx115 [inx-15p::GFP + lin-15(+)]. Pick non-Muv to maintain. Reference: Altun et al. Dev Dyn 238:1936-50 (2009).

zwEx116 [inx-16p::GFP + lin-15(+)]. Pick non-Muv to maintain. Reference: Altun et al. Dev Dyn 238:1936-50 (2009).

zwEx117 [inx-17p::GFP + lin-15(+)]. Pick non-Muv to maintain. Reference: Altun et al. Dev Dyn 238:1936-50 (2009).

zwEx118 [inx-18p::GFP + lin-15(+)]. Pick non-Muv to maintain. Reference: Altun et al. Dev Dyn 238:1936-50 (2009).

zwEx119 [inx-19p::GFP + lin-15(+)]. Pick non-Muv to maintain. Reference: Altun et al. Dev Dyn 238:1936-50 (2009).

zwIs100 [rab-3p::Myc::ryr-1 + myo-3p::GFP]. GFP is expressed in body muscles. Larger and moves better than unc-68(r1162). Also called ZW64A.

zzyIs139 [his-72p::PH(PLC1delta1)::mCherry::pie-1 3' UTR + unc-119(+)] II. The membrane-specific PH(PLC1delta1) domain, labeled with mCherry, is expressed in all cell membranes.

ltIs44 [pie-1p::mCherry::PH(PLC1delta1) + unc-119(+)] V. stIs10024 [pie-1::H2B::GFP::pie-1 3' UTR + unc-119(+)]. zuIs178 [his-72(1kb 5' UTR)::his-72::SRPVAT::GFP::his-72 (1KB 3' UTR) + 5.7 kb XbaI - HindIII unc-119(+)]. zzyIs139 [his-72p::PH(PLC1delta1)::mCherry::pie-1 3' UTR + unc-119(+)]. Reference: Zhao Z, et al. https://doi.org/10.21203/rs.3.rs-4664717/v1