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Paramecium

ABSTRACT: Paramecium macronuclear sequencing of multiple isolates of five species

PROVIDER: PRJNA525710 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8698590_1.fastq.gz	Fastqsanger.gz
	SRR8698590_2.fastq.gz	Fastqsanger.gz
	SRR8698600_1.fastq.gz	Fastqsanger.gz
	SRR8698600_2.fastq.gz	Fastqsanger.gz
	SRR8698610_1.fastq.gz	Fastqsanger.gz

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Project description:5-methyl-cytosine DNA methylation regulates gene expression and developmental programming in a broad range of eukaryotes. However, its presence and potential roles in ciliates, complex single-celled eukaryotes with germline-somatic genome specialization via nuclear dimorphism, are largely uncharted. While canonical cytosine methyltransferases have not been discovered in published ciliate genomes, recent studies performed in the stichotrichous ciliate Oxytricha trifallax suggest de novo cytosine methylation during macronuclear development. In this study, we applied bisfulfite genome sequencing, DNA mass spectrometry and antibody-based fluorescence detection to investigate the presence of DNA methylation in Paramecium tetraurelia. While the antibody-based methods suggest cytosine methylation, DNA mass spectrometry and bisulfite sequencing reveal that levels are actually below the limit of detection. Our results suggest that Paramecium does not utilize 5-methyl-cytosine DNA methylation as an integral part of its epigenetic arsenal.

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