1 Genes
| WormBase Gene ID | Gene Name | Sequence Name | Organism |
|---|---|---|---|
| WBGene00017641 | csr-1 | F20D12.1 | Caenorhabditis elegans |
| WormBase ID | WBStrain00054552 | CGC Received | 2023-06-02 |
| Genotype | csr-1(fj162) ; fjDf1 fjDf2 fjDf3 fjDf4 X. | Laboratory | ZT |
| Made By | WBPerson1503 | Mutagen | CRISPR_Cas9 |
| Name | ZT69 | Outcrossed | x1 |
| Remark | 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, CAACCTGACTCTCGCCAAGAC and GGAGAAGTAGGCGTGTCAGTTA; fjDf2 in Y75D11A, CAAGTGCCAAACTAGACTGCTC and TTCAAAACGCTACGCGATACCAG; fjDf3 in Y81B9A, AAATGCCCCTATCTCACAGTGG and GACTGCTAGAATCTGACTCGTC; fjDf4 in Y49A10A, CAACCTGACTCTCGCCAAGAC and GGAGAAGTAGGCGTGTCAGTTA. 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. | Species | Caenorhabditis elegans |
| WormBase Gene ID | Gene Name | Sequence Name | Organism |
|---|---|---|---|
| WBGene00017641 | csr-1 | F20D12.1 | Caenorhabditis elegans |
