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Site-specific manipulation of Arabidopsis loci using CRISPR-Cas9 SunTag systems

ABSTRACT: Site-specific manipulation of Arabidopsis loci using CRISPR-Cas9 SunTag systems

PROVIDER: PRJNA515610 | ENA |

REPOSITORIES: ENA

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Dataset's files

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			Action	DRS
	SRR8450380.fastq.gz	Fastqsanger.gz
	SRR8450390.fastq.gz	Fastqsanger.gz
	SRR8450400.fastq.gz	Fastqsanger.gz
	SRR8450410.fastq.gz	Fastqsanger.gz
	SRR8450420.fastq.gz	Fastqsanger.gz

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Site-specific manipulation of Arabidopsis loci using CRISPR-Cas9 SunTag systems

Project description:Understanding genomic functions requires site-specific manipulation of loci via efficient protein effector targeting systems. However, few approaches for targeted manipulation of the epigenome are available in plants. Here, we adapt the dCas9-SunTag system to engineer targeted gene activation and DNA methylation in Arabidopsis. We demonstrate that a dCas9-SunTag system utilizing the transcriptional activator VP64 drives robust and specific activation of several loci, including protein coding genes and transposable elements, in diverse chromatin contexts. In addition, we present a CRISPR-based methylation targeting system for plants, utilizing a SunTag system with the catalytic domain of the Nicotiana tabacum DRM methyltransferase, which efficiently targets DNA methylation to specific loci, including the FWA promoter, triggering a developmental phenotype, and the SUPERMAN promoter. These SunTag systems represent valuable tools for the site-specific manipulation of plant epigenomes.

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Site-specific manipulation of Arabidopsis loci using CRISPR-Cas9 SunTag systems.

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