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Oomen, M.E. ; Torres-Padilla, M.E.

Jump-starting life: balancing transposable element co-option and genome integrity in the developing mammalian embryo.

EMBO Rep. 25, 1721-1733 (2024)

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Remnants of transposable elements (TEs) are widely expressed throughout mammalian embryo development. Originally infesting our genomes as selfish elements and acting as a source of genome instability, several of these elements have been co-opted as part of a complex system of genome regulation. Many TEs have lost transposition ability and their transcriptional potential has been tampered as a result of interactions with the host throughout evolutionary time. It has been proposed that TEs have been ultimately repurposed to function as gene regulatory hubs scattered throughout our genomes. In the early embryo in particular, TEs find a perfect environment of naïve chromatin to escape transcriptional repression by the host. As a consequence, it is thought that hosts found ways to co-opt TE sequences to regulate large-scale changes in chromatin and transcription state of their genomes. In this review, we discuss several examples of TEs expressed during embryo development, their potential for co-option in genome regulation and the evolutionary pressures on TEs and on our genomes.

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Publication type Article: Journal article

Document type Review

Corresponding Author

Keywords Genome Evolution ; Genome Regulation ; Preimplantation Development ; Transposable Elements; Stem-cells; Small Rnas; Endogenous Retroviruses; Dna Methylation; Mouse Embryos; Muerv-l; Evolution; Chromatin; Retrotransposons; Transcription

ISSN (print) / ISBN 1469-221X

e-ISSN 1469-3178

Journal EMBO Reports

Quellenangaben Volume: 25, Issue: 4, Pages: 1721-1733

Publisher EMBO Press

Publishing Place Campus, 4 Crinan St, London, N1 9xw, England

Non-patent literature Publications

Reviewing status Peer reviewed

Institute(s) Institute of Epigenetics and Stem Cells (IES)

Grants EMBO
NIH 4DN program
DFG
Helmholtz Association
Helmholtz Association ((sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic))