In vivo labeling of endogenous genomic loci in C. elegans using CRISPR/dCas9.
In vivo labeling of endogenous genomic loci in C. elegans using CRISPR/dCas9.
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DOI:
10.17912/micropub.biology.000701
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发表时间:
2022
影响因子:
--
通讯作者:
Conradt, Barbara
中科院分区:
文献类型:
--
作者:
Memar, Nadin;Sethi, Aditya;Luehr, Sebastian;Lambie, Eric J;Conradt, Barbara
Visualization of genomic loci with open chromatin state has been reported in mammalian tissue culture cells using a CRISPR/Cas9-based system that utilizes an EGFP-tagged endonuclease-deficient Cas9 protein (dCas9::EGFP) (Chen et al. 2013). Here, we adapted this approach for use in Caenorhabditis elegans . We generated a C. elegans strain that expresses the dCas9 protein fused to two nuclear-localized EGFP molecules (dCas9::NLS::2xEGFP::NLS) in an inducible manner. Using this strain, we report the visualization in live C. elegans embryos of two endogenous repetitive loci, rrn-4 and rrn-1 , from which 5S and 18S ribosomal RNAs are constitutively generated.