mIs11 [myo-2p::GFP + pes-10p::GFP + F22B7.9::GFP]. Pick WT with dim GFP+ in pharynx to maintain. mIs11 homozygotes will quickly overtake the population if not selected against. GFP expression in 4-cell embryos, pharyngeal muscle and gut. Heterozygotes are WT with dim GFP signal in the pharynx. mIs11 homozygotes are WT with bright GFP in the pharynx. rad-51(lg8701) homozygotes are non-GFP and throw dead eggs.

Heterozygotes are wild-type with pharyngeal-expressed GFP, and segregate wild-type GFP+(pharynx) heterozygotes, arrested nT1[qIs51] homozygotes, and viable non-GFP(pharynx) rad-51(iow53[GFP::rad-51]) homozygotes. Balancer is prone to breaking down. If a population contains a mix of bright and dim GFP animals, pick dim GFP and check for correct segregation of progeny to maintain. iow53 inserted a GFP tag at the N-terminus of the endogenous rad-51 locus, but the tagged protein is not fully functional. non-GFP(pharynx) rad-51(iow53[GFP::rad-51]) homozygotes form GFP foci in the germline that are mostly spo-11 dependent, and GFP::rad-51 homozygotes have defects in unloading RAD-51. Created by CRISPR using pDD282, therefore may also contain 3XFLAG. Reference: Koury E, et al. Nucleic Acids Res. 2018 Jan 25;46(2):748-764.

Heterozygotes are WT and segregate WT and dead eggs. 1/3 of the WT are rad-51(lg8701) homozygotes and will give only dead eggs.

Y43C5A.6. Homozygous sterile deletion chromosome balanced by GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested nT1[qIs51] aneuploids, and non-GFP ok2218 homozygotes (sterile, lays eggs that don't hatch). Homozygous nT1[qIs51] inviable. Pick WT GFP and check for correct segregation of progeny to maintain. External left primer: TCTTACCTCATTCTTGGCCG. External right primer: GTTCCTATCGGTGCCTTTCA. Internal left primer: TGAATCCGTGAAAGTGTGGA. Internal right primer: AGGACTTGGCACGTGTCTCT. Internal WT amplicon: 2435 bp. Deletion size: 1634 bp. Deletion left flank: AACGAACGGCTAGTCCTCGCGTGCGTCCTC. Deletion right flank: TGATACTTTCAATTCAATTAATTGGATTTT. 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

Heterozygotes are WT and segregate WT, Dpys which give only dead eggs, and dead eggs.

Balanced heterozygotes are GFP+ Unc and segregate GFP+ Unc (heterozygotes), non-GFP non-Unc spo-11(me44) homozygotes, and dead eggs (nT1 homozygotes). spo-11(me44) homozygotes are viable and produce more than 90% dead eggs (a large fraction of the survivors are males — strong Him phenotype); cytologically they lack chiasmata in diakinesis-stage oocytes and lack RAD-51 foci. Maintain by picking Unc.

Unc. Not caused by ttTi5605. Mos1 allele generated by NemaGENETAG consortium (Laurent Segalat). [NOTE: 11/15/11 - This strain contains unc-119(ed9), not unc-119(ed3) as previously reported. (C. Frokjaer-Jensen)] [NOTE: The Dernburg lab has noticed an increased number of rad-51 foci in EG4322 compared to N2. Please use the outcrossed version of this strain (EG6699) instead, which does not have this problem. (C. Frokjaer-Jensen)]

axIs1851 [pie-1p::GFP::H2B::rad-51 3'UTR + unc-119(+)]. Maintain at 25C to maintain transgene expression. GFP expression in adult germline; somatic and germline expression in embryos.

ddIs268 [rad-51::TY1::EGFP::3xFLAG(92C12) + unc-119(+)]. TY1::EGFP::3xFLAG tag inserted in frame at C-terminus of coding sequence by recombineering. Expression of transgene confirmed by GFP. References: Sarov, M, et al. Cell. 2012 Aug 17;150(4):855-66. Strain was constructed as part of the Regulatory Element Project, part of modENCODE (http://www.modencode.org)