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Pervasive epigenetic effects of Drosophila euchromatic transposable elements impact their evolution

ABSTRACT: Pervasive epigenetic effects of Drosophila euchromatic transposable elements impact their evolution

OTHER RELATED OMICS DATASETS IN: GSE94742GSE94741GSE94735

PROVIDER: PRJNA373904 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR5241490_1.fastq.gz	Fastqsanger.gz
	SRR5241490_2.fastq.gz	Fastqsanger.gz
	SRR5241500_1.fastq.gz	Fastqsanger.gz
	SRR5241500_2.fastq.gz	Fastqsanger.gz
	SRR5241760_1.fastq.gz	Fastqsanger.gz

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Pervasive epigenetic effects of Drosophila euchromatic transposable elements impact their evolution [ChIP-seq]

Project description:Pervasive epigenetic effects of Drosophila euchromatic transposable elements impact their evolution [ChIP-seq]

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Pervasive epigenetic effects of Drosophila euchromatic transposable elements impact their evolution [RNA-seq]

Project description:Pervasive epigenetic effects of Drosophila euchromatic transposable elements impact their evolution [RNA-seq]

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Pervasive epigenetic effects of Drosophila euchromatic transposable elements impact their evolution [RNA-seq]

Project description:We study the relatively unexplored evolutionary consequences of the epigenetic effects of transpoable elements (TEs) by providing the first genome-wide quantification of such effects in wild-derived D. melanogaster and D. simulans strains. Surprisingly, over half of euchromatic TEs show spread of repressive epigenetic marks to nearby DNA, resulting in differential epigenetic states of homologous genic alleles and, in return, selection against TEs. Interestingly, compared to D. melanogaster, the lower TE content in D. simulans is correlated with stronger epigenetic effects of TEs and higher levels of host genetic factors known to promote epigenetic silencing. We conclude that the epigenetic effects of euchromatic TEs, and host genetic factors modulating such effects, play a critical role in the population dynamics of TEs within and between species.

2017-07-01 | GSE94741 | GEO

Pervasive epigenetic effects of Drosophila euchromatic transposable elements impact their evolution [ChIP-seq]

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Pervasive epigenetic effects of Drosophila euchromatic transposable elements impact their evolution.

Project description:Transposable elements (TEs) are widespread genomic parasites, and their evolution has remained a critical question in evolutionary genomics. Here, we study the relatively unexplored epigenetic impacts of TEs and provide the first genome-wide quantification of such effects in D. melanogaster and D. simulans. Surprisingly, the spread of repressive epigenetic marks (histone H3K9me2) to nearby DNA occurs at >50% of euchromatic TEs, and can extend up to 20 kb. This results in differential epigenetic states of genic alleles and, in turn, selection against TEs. Interestingly, the lower TE content in D. simulans compared to D. melanogaster correlates with stronger epigenetic effects of TEs and higher levels of host genetic factors known to promote epigenetic silencing. Our study demonstrates that the epigenetic effects of euchromatic TEs, and host genetic factors modulating such effects, play a critical role in the evolution of TEs both within and between species.

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Pervasive epigenetic effects of Drosophila euchromatic transposable elements impact their evolution

Project description:This SuperSeries is composed of the SubSeries listed below.

2017-07-01 | GSE94742 | GEO

Impact of transposable elements in Pleurotus ostreatus transcriptome profiles

Project description:Pleurotus ostreatus, also known as the oyster mushroom, is an active lignin decomposer in the forests. The genomes of the monokaryotic strains PC15 and PC9 have been used to characterize the content and distribution of transposable elements. This study analyzes the impact of transposable element insertions on the global transcriptome of P. ostreatus. The transcriptome of PC15 and PC9 has been analyzed in exponential growth during submerged fermentation in malt-yeast extract-sucrose medium RNAseq of two P. ostreatus strains: PC15 and PC9

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