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Strain Species Genotype
CV78 C. elegans cra-1(tm2144) I/hT2 [bli-4(e937) let-?(q782) qIs48] (I;III). Show Description
Homozygous lethal allele balanced by bli-4- and GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP cra-1(tm2144) homozygotes (99.7% embryonic lethality, 61% larval lethality, Him). Homozygous hT2[bli-4 let-? qIs48] inviable. Pick WT GFP and check for correct segregation of progeny to maintain. Reference: Smolikove S, et al. (2008) PLoS Genet 4(6):e1000088.
CV203 C. elegans rjSi1 II. Show Description
rjSi1 [cra-1p::cra-1::GFP::cra-1 3'UTR + Cbr-unc-119(+)] II. Single copy insertion. cra-1 promoter, cra-1::GFP and 3'UTR was cloned into pCFJ150 (ttTi5605) vector and inserted into ttTi5605 of EG4322 strain. Outcrossed three times to N2 Bristol; could still carry unc-119(ed9) in the background. Superficially wild-type. This CRA-1::GFP fusion construct has been shown to be functional and its localization reflects endogenous CRA-1 localization. rjSi1 transgene can rescue synapsis defects of cra-1 mutants and restore cross-over events (six bivalents instead of the 11 to 12 univalents characteristic of cra-1 mutants). Brood size and embryonic lethality were significantly, albeit not completely, restored in the rescued line suggesting that the GFP tag might affect other CRA-1 functions. Reference: Gao J, et al. PLOS Genetics 11(3): e1005029.