Nature Communications (Jun 2021)

Genomic imprinting in mouse blastocysts is predominantly associated with H3K27me3

  • Laura Santini,
  • Florian Halbritter,
  • Fabian Titz-Teixeira,
  • Toru Suzuki,
  • Maki Asami,
  • Xiaoyan Ma,
  • Julia Ramesmayer,
  • Andreas Lackner,
  • Nick Warr,
  • Florian Pauler,
  • Simon Hippenmeyer,
  • Ernest Laue,
  • Matthias Farlik,
  • Christoph Bock,
  • Andreas Beyer,
  • Anthony C. F. Perry,
  • Martin Leeb

DOI
https://doi.org/10.1038/s41467-021-23510-4
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 16

Abstract

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In most mammals, imprinted genes contain epigenetic marks that differ in each parental genome and control their parent-of-origin-specific expression. Here, the authors map imprinted genes in mouse preimplantation embryos and find that imprinted gene expression in blastocysts is mainly dependent on Polycomb-mediated H3K27me3-associated gene silencing.