Triple mutant for hlh-17, hlh-31, and hlh-32. CRISPR/Cas9-engineered 1691 bp deletion of the entire hlh-32 locus in hlh-17 hlh-31(syb6635) double mutant parental strain. Reference: Aguilar GR, et al. bioRxiv 2024.07.12.603289; doi: https://doi.org/10.1101/2024.07.12.603289

Endogenous locus tagged with GFP at C-terminus using CRISPR/Cas9. Reference: Aguilar GR, et al. bioRxiv 2024.07.12.603289; doi: https://doi.org/10.1101/2024.07.12.603289

Endogenous locus tagged with GFP at C-terminus using CRISPR/Cas9. Reference: Aguilar GR, et al. bioRxiv 2024.07.12.603289; doi: https://doi.org/10.1101/2024.07.12.603289

Endogenous locus tagged with SL2::GFP::H2B at C-terminus using CRISPR/Cas9. Reference: Aguilar GR, et al. bioRxiv 2024.07.12.603289; doi: https://doi.org/10.1101/2024.07.12.603289

syIs875 [ins-6p::dYFP + ins-6::mCherry + unc-122p::GFP]. cmk-1(sy2277) is a C-terminal knock-in of mKate2::AID::FLAG to be used for conditional degradation of CMK-1 protein. sy2277 is a CRISPR-engineered allele generated using the self-excising cassette (SEC) method (Dickinson et al. 2015, Genetics) with the gRNA sequence 5'-AGCGTGAAAAGCGGGTGTAGNGG-3' (note: NGG not included in the gRNA). syIs875 is an integrated transgene that includes a transcriptional and translational reporter for ins-6 and is marked by GFP in the coelomocytes. dYFP signal can be seen in ASI during reproductive growth and in ASJ (strong) and ASI (weaker) during dauer exit. Reference: Zhang MG, et al. (2024). Available at: https://www.biorxiv.org/content/10.1101/2024.03.20.586022v1 [Accessed 13 August 2024].

Male-female strain. Reference strain for the new chromosome-level assembly of the C. remanei genome. This is a natural isolate (BioProject PRJNA577507) inbred to reduce heterozygosity. Reference: https://www.biorxiv.org/content/10.1101/797035v1 (Accepted at Genetics).

fxDf1 (II: 2,484,339 - 2,487,244) removes nspf-1, nspf-2, and nspf-3. Him. This strain carries a knockout of the Nematode-Specific Peptide family, group F (NSPF) gene family, which localizes to sperm membranous organelles. There are no effects on spermatogenesis, male fertility, or sperm competitive ability. Hermaphrodites produce approximately 30% males. Reference: Kasimatis KR, et al. (2018) BioRxiv 290221; doi: https://doi.org/10.1101/290221.

fxIs1 [pie-1p::TIR1::mRuby, I:2851009] I. Auxin-inducible spermatogenesis arrest, resulting in hermaphrodite self-sterility. Degron tag was inserted into the endogenous spe-44 locus. Reference: Kasimatis KR, et al. (2018) Auxin-Mediated Sterility Induction System for Longevity and Mating Studies in Caenorhabditis elegans. BioRvix. doi: https://doi.org/10.1101/284232.

fxIs1 [pie-1p::TIR1::mRuby, I:2851009] I. Auxin-inducible spermatogenesis arrest, resulting in hermaphrodite self-sterility and reversible male sterility. Him: males produced at ~30%. Degron tag was inserted into the endogenous spe-44 locus. Reference: Kasimatis KR, et al. (2018) Auxin-Mediated Sterility Induction System for Longevity and Mating Studies in Caenorhabditis elegans. BioRvix. doi: https://doi.org/10.1101/284232.

fxSi3 [hsp-16.41p::PEEL-1::tbb-2 3' UTR + rpl-28p::mKate2::unc-54 3'UTR + rps-0p::HygR::unc-54 3' UTR, I:2851003] I. fxSi4 [hsp-16.41p::PEEL-1::tbb-2 3'UTR + loxP, II: 8420157] II. Heat-shock strain can be maintained at 20C without any issues. Degron tag was inserted into the endogenous spe-44 locus, allowing auxin-inducible spermatogenesis arrest and reversible male sterility. Heat-shock-induced expression of PEEL-1 will cause lethality in both sexes. Five generations of lab adaptation following genome editing, all in the CB4856 background. Reference: Kasimatis, KR et al. (2021) Post-Insemination Selection Dominates Pre-Insemination Selection in Driving Male Competitive Ability. bioRxiv doi: https://doi.org/10.1101/2021.06.23.449605

fxIs47 [rps-0p::5’ (delta)HygR::GCGAAGTGACGGTAGACCGT::3’ (delta)HygR::unc-54 3’::LoxP, II:8420157]. Phenotypically wild-type strain carrying a landing pad for barcode integrations. Reference: Stevenson ZC, et al. bioRxiv 2022.10.30.514301; doi: https://doi.org/10.1101/2022.10.30.514301. Paper accepted at eLife.

oyIs96 [gcy-8p::FlincG3 gcy-8p::myr::TagRFP + unc-122p::dsRed]. Red fluorescence in coelomocytes and faint green fluorescence in AFD head neurons. cGMP fluorescent sensor (FlincG3) expression in AFD neurons allows visualization of AFD signaling. Generated in N2 background. Reference: Extrachromosomal array used in the generation of this strain detailed in https://doi.org/10.1534/genetics.119.302392.

Constitutively activated mitochondrial UPR and an extended lifespan. Reference: Rauthan M, et al. G3 (Bethesda). 2015 Jun 1. pii: g3.115.018598.

Homozygous viable, non-Psa (Sawa), no gonadogenesis defects. Reference: Large EE and Mathies LD (2014 Jan 8). G3, doi: 10.1534/g3.113.009852.

Homozygous lethal deletion chromosome balanced by hT2. GFP+ heterozygotes are wild-type that segregate wild-type GFP+, arrested hT2 aneuploids, and non-GFP tm3309 homozygotes. tm3395 homozygotes are maternal effect lethal (late embryo & larval lethal) and have progeny with gonadogenesis defects. Pick wild-type GFP+ animals to maintain. Reference: Large EE and Mathies LD (2014 Jan 8). G3, doi: 10.1534/g3.113.009852.

Heterozygotes are mostly wild-type but occasionally lack a gonad arm; segregate tm4567 homozygotes (larval/embryonic lethal) and rol-9 homozygotes (Rol). Pick non-Rol to maintain and screen for larval lethals (or by PCR) for tm4567 deletion. Reference: Large EE and Mathies LD (2014 Jan 8). G3, doi: 10.1534/g3.113.009852.

Homozygous lethal deletion chromosome balanced by hT2. GFP+ heterozygotes are wild-type that segregate wild-type GFP+, arrested hT2 aneuploids, and non-GFP tm3309 homozygotes. tm3309 homozygotes are maternal effect lethal (late embryo & larval lethal) and have gonadogenesis defects. Previously known as swsn-2.1(tm3309). Pick wild-type GFP+ animals to maintain. Reference: Large EE and Mathies LD (2014 Jan 8). G3, doi: 10.1534/g3.113.009852.

Heterozygotes are wild-type GFP+ that segregate wild-type GFP+ heterozygotes, GFP- tm4263 homozygotes (MEL), and Dpy GFP+ mIn1 homozygotes. Reference: Large EE and Mathies LD (2014 Jan 8). G3, doi: 10.1534/g3.113.009852.

Heterozygotes are mostly wild-type GFP+, but occasionally have missing gonad arms. Pick wild-type GFP+ to maintain. Heterozygotes segregate wild-type GFP+, GFP- tm305 homozygotes (embryonic lethal) and arrested nT1 aneuploids. Reference: Large EE and Mathies LD (2014 Jan 8). G3, doi: 10.1534/g3.113.009852.

Homozygous lethal deletion chromosome balanced by hT2. GFP+ heterozygotes are wild-type and segregate wild-type GFP+, arrested hT2 aneuploids, and non-GFP tm4795 homozygotes. tm4795 homozygotes arrest as early larvae. Pick wild-type GFP+ animals to maintain. Reference: Large EE and Mathies LD (2014 Jan 8). G3, doi: 10.1534/g3.113.009852.

umnIs49 [myo-2p::mKate2 + NeoR, V: 1005689 (intergenic)] IV. Homozygous Mel. Deletion of 489 bp with Calarco/Colaiacovo selection cassette conferring myo-2 GFP and G418 resistance inserted at break in parental strain N2. Heterozygotes are wild-type GFP+ mKate2+, and segregate wild-type GFP+ mKate2+, GFP+ non-mKate that give dead eggs (ve844 homozygotes), Vul non-GFP mKate2+ (nT1 homozygotes) and dead eggs (aneuploids).  Maintain by picking wild-type GFP+ mKate2+. Maintain by picking wild-type GFP+ mKate2+. Left flanking Sequence: ACGGACGACTCTTCCGGCAGTTGCAGACAT; Right flanking sequence: TCAACGCTGAAAAGCTGAAAAACGGTGAAG. Y57G11C.1147 sgRNA #1: GAGTATCTCCTTTGGTGACA; Y57G11C.1147 sgRNA #2: TCAGCGTTGAATGCACGCTT. Please reference Au et al., G3 9(1): 135-144 2019 in any work resulting from use of this mutation.

stIs20022 [Cbr-his-72::GFP::pie-1 3'UTR + Cbr-unc-119(+)]. C. briggsae with fluorescently labeled (GFP) histones. Reference: Zhou Z, et al. Genetics. 2010 Mar; 184(3): 853–863. doi: 10.1534/genetics.109.110270 PMID: 20008572.

stIs20025 [Cbr-his-72::mCherry::pie-1 3'UTR + Cbr-unc-119(+)]. C. briggsae with fluorescently labeled (mCherry) histones. Reference: Zhou Z, et al. Genetics. 2010 Mar; 184(3): 853–863. doi: 10.1534/genetics.109.110270 PMID: 20008572.

mCherry inserted into endogenous nxf-1locus using CRISPR/CAS9 engineering. Reference: Xu D, et al. Cell Rep. 2023 Aug 29;42(8):112915. doi: 10.1016/j.celrep.2023.112915. PMID: 37537842.

stxEx39 [alx-1::TY1::eGFP::3xFLAG + Cbr-unc-119(+)]. Pick non-Unc to maintain. Constitutive expression of GFP. TY1::EGFP::3xFLAG tag inserted in frame at C-terminus of alx-1 coding sequence in fosmid WRM064D_F05 by recombineering (TransgeneOme bacterial clone 095794875301489 F02). Reference: Radetskaya O, et al. The PMK-3 (p38) Mitochondrial Retrograde Response Functions in Intestinal Cells to Extend Life via the ESCRT Machinery. bioRxiv 797308; doi: https://doi.org/10.1101/797308

stxEx48 [C01A2.4::TY1::eGFP::3xFLAG + Cbr-unc-119(+)]. Pick non-Unc to maintain. Constitutive expression of GFP. TY1::EGFP::3xFLAG tag inserted in frame at C-terminus of C01A2.4 coding sequence in fosmid WRM061C_F01 by recombineering (TransgeneOme bacterial clone 7225558184899882 D12). Reference: Radetskaya O, et al. The PMK-3 (p38) Mitochondrial Retrograde Response Functions in Intestinal Cells to Extend Life via the ESCRT Machinery. bioRxiv 797308; doi: https://doi.org/10.1101/797308

stxEx35 [istr-1::TY1::eGFP::3xFLAG + Cbr-unc-119(+)]. Pick non-Unc to maintain. Constitutive expression of GFP. TY1::EGFP::3xFLAG tag inserted in frame at C-terminus of istr-1 coding sequence in fosmid WRM0636D_F01 by recombineering (TransgeneOme bacterial clone 5438954842362824 D10). Reference: Radetskaya O, et al. The PMK-3 (p38) Mitochondrial Retrograde Response Functions in Intestinal Cells to Extend Life via the ESCRT Machinery. bioRxiv 797308; doi: https://doi.org/10.1101/797308

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

Endogenous lgc-50 locus tagged with mNeonGreen. Inclusion of the T2A self-cleaving peptide allows mNeonGreen406 to be expressed as a cytosolic protein. Generated in N2 background. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs17 [tag-168::NLS::GCaMP7F + gcy-28.d::NLS::tagRFPt + ceh-36::NLS::tagRFPt + inx-1::tagRFPt + mod-1::tagRFPt + tph-1(short)::NLS::tagRFPt + gcy-5::NLS-;:tagRFPt + gcy-7::NLS::tagRFPt]. flvIs18 [tag-168::NLS::mNeptune2.5]. This strain can be used for calcium imaging at whole-brain level. Back-crossed 5x to MT21793 after transgene integration. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

flvIs2 [tph-1p(short)::Chrimson + elt-2p::mCherry]. Deficits in serotonin-dependent slowing response. NSM neuron is expressing Chrimson and can be specifically activated by red light. Reference: Dag U, et al. bioRxiv 2023.01.15.524132; doi: https://doi.org/10.1101/2023.01.15.524132.

Superficially wild-type. Deletion site verified by PCR. Reference: Meier B, et al. 2020 bioRxiv, https://doi.org/10.1101/2020.06.04.133306

Resistance to strong reducing conditions: dithiothreitol (DTT) and 2- mercaptoethanol (2ME). Reference: Winter AD, et al. BMC Biol. 2022 Oct 8;20(1):228. doi: 10.1186/s12915-022-01415-y. PMID:36209095

mce-1(D2030.5). Strong resistance to reducing agents dithiothreitol (DTT) and 2- mercaptoethanol (2ME). Reference: Winter AD, et al. BMC Biol. 2022 Oct 8;20(1):228. doi: 10.1186/s12915-022-01415-y. PMID:36209095

wyIs592 [ser-2(prom3)::myr::GFP + odr-1p::RFP] III. Fluorescent PVD- and FLP-specific morphology markers. Defects in PVD dendrite morphology. Reference: Shi R, et al. 2024 bioRxiv doi: https://doi.org/10.1101/2024.05.08.591205 PMID: 38766073.

wyIs592 [ser-2(prom3)::myr::GFP + odr-1p::RFP] III. Fluorescent PVD- and FLP-specific morphology markers. nj48 is a punitive null allele of sax-7. Reference: Shi R, et al. 2024 bioRxiv doi: https://doi.org/10.1101/2024.05.08.591205 PMID: 38766073.

wyIs592 [ser-2(prom3)::myr::GFP + odr-1p::RFP] III. Fluorescent PVD- and FLP-specific morphology markers. Reference: Shi R, et al. 2024 bioRxiv doi: https://doi.org/10.1101/2024.05.08.591205 PMID: 38766073.

wyIs592 [ser-2(prom3)::myr::GFP + odr-1p::RFP] III. dma-1(wy908) is a partial loss of function allele generated by CRISPR/Cas9-induced frame shift with multiple premature stop codons (n=6, 8 bp deletion). Fluorescent PVD- and FLP-specific morphology markers. Reference: Shi R, et al. 2024 bioRxiv doi: https://doi.org/10.1101/2024.05.08.591205 PMID: 38766073.

wyIs592 [ser-2(prom3)::myr::GFP + odr-1p::RFP] III. Fluorescent PVD- and FLP-specific morphology markers. wy1220 is a CRISPR/Cas9-engineered hpo-30(R186A) substitution mutation in the furin cleavage site. Reference: Shi R, et al. 2024 bioRxiv doi: https://doi.org/10.1101/2024.05.08.591205 PMID: 38766073.