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ABSTRACT: Arabidopsis thaliana brx and brx jmj14 mutant RNA seq of root tips

PROVIDER: PRJNA580217 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR10362774.fastq.gz	Fastqsanger.gz
	SRR10362775.fastq.gz	Fastqsanger.gz
	SRR10362776.fastq.gz	Fastqsanger.gz
	SRR10362777.fastq.gz	Fastqsanger.gz

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Project description:Arabidopsis thaliana bb and jmj14 mutant RNA seq of root tips

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Project description:JmjC domain containing protein 14 (JMJ14) is an H3K4-specific histone demethylase that plays important roles in RNA-mediated gene silencing and flowering time regulation in Arabidopsis. However, how JMJ14 is recruited to their target genes remains unclear. Here, we show that the C-terminal FYRN and FYRC domains of JMJ14 are required for RNA silencing and flowering time regulation. Chromatin binding of JMJ14 is lost upon deletion of its FYRN and FYRC domains, along with increased H3K4me3. FYRN and FYRC domains interact with a pair of NAC domain containing transcription factors, NAC050 and NAC052. Genome-wide analysis revealed that JMJ14 and NAC050/052 share a set of common target genes with CTTGNNNNNCAAG consensus sequences. Mutations in either NAC052 or NAC050 impair RNA-mediated gene silencing. Thus, our findings demonstrate an important role of FYRN and FYRC in targeting JMJ14 through direct interaction with NAC050/052 transcription factors, which reveals a novel mechanism of recruiting a histone demethylases to its target loci in higher plants. anti-HA ChIP-seq were performed with six samples: Col, NAC050-HA, NAC052-HA, jmj14-1, JMJ14-HA and JMJ14-FYR-HA. Anti-H3K4me3 ChIP were performed with four samples: Col, jmj14-1, JMJ14-HA and JMJ14-FYR-HA. (NAC050-HA indicates PNAC050::NAC050-HA nac050-1, NAC052-HA indicates PNAC052::NAC052-HA nac052-2, JMJ14-HA indicates PJMJ14::JMJ14-HA jmj14-1, JMJ14-FYR-HA indicates PJMJ14::JMJ14-FYR-HA jmj14-1)

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