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Strain Species Genotype
SSM2 C. elegans mre-11(iow1)/nT1[qIs51] (IV;V). Show Description
Heterozygotes are wild-type with pharyngeal GFP signal, and segregate wild-type GFP, arrested nT1[qIs51] aneuploids, and non-GFP iow1 homozygotes (viable; see note below). Homozygous nT1[qIs51] inviable. Pick wild-type GFP and check for correct segregation of progeny to maintain. iow1 is a separation-of-function allele of mre-11. Homozygotes develop into adults wild-type in appearance, but laying dead eggs due to defects in meiotic DSB repair: mre-11(iow1) worms form meiotic DSBs but are impaired in their resection. Pick GFP+ to maintain (mre-11(iow1)/nT1[qIs51]) and GFP- to obtain homozygous mre-11(iow1) worms for analysis. Reference: Yin Y & Smolikove S. Mol Cell Biol. 2013 Jul;33(14):2732-47. doi: 10.1128/MCB.00055-13. Epub 2013 May 13. Erratum in: Mol Cell Biol. 2015 Jul;35(14):2568. PubMed PMID: 23671188; PubMed Central PMCID: PMC3700128.
SSM559 C. elegans rpa-4(iow128[Myc::rpa-4]) rpa-2(iow49[3xFLAG::rpa-2]) I; rpa-1(iow92[OLLAS::rpa-1]) II. Show Description
CRISPR/Cas9 engineering used to insert N-terminal Myc tag into the endogenous rpa-4 locus, N-terminal 3xFLAG tag into the endogenous rpa-2 locus, and N-terminal OLLAS tag into the endogenous rpa-1 locus. SSM559 was generated by crossing rpa-2(iow49) with rpa-1(iow92), followed by CRISPR insertion of the Myc tag into rpa-4. Reference: Hefel et al., Nucleic Acids Res. 2021 Jan 21;gkaa1293. doi: 10.1093/nar/gkaa1293.
SSM596 C. elegans rpa-1(iow117)/mIn1[mIs14 dpy-10(e128)] II. Show Description
Crispr/Cas9-engineered indel in the 5’ region of rpa-1. Larval-lethal mutation balanced by GFP- and dpy-10-marked inversion. Heterozygotes are wild-type with relatively dim pharyngeal GFP signal, and segregate WT dim GFP, Dpy bright GFP (mIn1 homozygotes), and non-GFP iow117 homozygotes (larval lethal). Pick wild-type dim GFP and check for correct segregation of progeny to maintain. iow117 was generated in mre-11::GFP background and outcrossed to N2. Reference: Hefel et al., Nucleic Acids Res. 2021 Jan 21;gkaa1293. doi: 10.1093/nar/gkaa1293.