The Epigenetics of Gametes and Early Embryos and Potential Long-Range Consequences in Livestock Species-Filling in the Picture With Epigenomic Analyses.
TLDR
In this article, the effects of parental environmental exposures on the epigenetics of gametes and the early embryo, and evidence for transgenerational inheritance in livestock species was discussed.Abstract:
The epigenome is dynamic and forged by epigenetic mechanisms, such as DNA methylation, histone modifications, chromatin remodeling, and non-coding RNA species. Increasing lines of evidence support the concept that certain acquired traits are derived from environmental exposure during early embryonic and fetal development, i.e., fetal programming, and can even be "memorized" in the germline as epigenetic information and transmitted to future generations. Advances in technology are now driving the global profiling and precise editing of germline and embryonic epigenomes, thereby improving our understanding of epigenetic regulation and inheritance. These achievements open new avenues for the development of technologies or potential management interventions to counteract adverse conditions or improve performance in livestock species. In this article, we review the epigenetic analyses (DNA methylation, histone modification, chromatin remodeling, and non-coding RNAs) of germ cells and embryos in mammalian livestock species (cattle, sheep, goats, and pigs) and the epigenetic determinants of gamete and embryo viability. We also discuss the effects of parental environmental exposures on the epigenetics of gametes and the early embryo, and evidence for transgenerational inheritance in livestock.read more
Citations
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Cell fate determination and Hippo signaling pathway in preimplantation mouse embryo.
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References
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Journal ArticleDOI
Chromatin Modifications and Their Function
TL;DR: The surface of nucleosomes is studded with a multiplicity of modifications that can dictate the higher-order chromatin structure in which DNA is packaged and can orchestrate the ordered recruitment of enzyme complexes to manipulate DNA.
Journal ArticleDOI
DNA methylation patterns and epigenetic memory
TL;DR: The heritability of methylation states and the secondary nature of the decision to invite or exclude methylation support the idea that DNA methylation is adapted for a specific cellular memory function in development.
Journal ArticleDOI
Epigenetic regulation of gene expression: how the genome integrates intrinsic and environmental signals
Rudolf Jaenisch,Adrian Bird +1 more
TL;DR: Advances in the understanding of the mechanism and role of DNA methylation in biological processes are reviewed, showing that epigenetic mechanisms seem to allow an organism to respond to the environment through changes in gene expression.
Journal ArticleDOI
A Bivalent Chromatin Structure Marks Key Developmental Genes in Embryonic Stem Cells
Bradley E. Bernstein,Tarjei S. Mikkelsen,Tarjei S. Mikkelsen,Xiaohui Xie,Michael Kamal,Dana J. Huebert,James Cuff,Ben Fry,Alexander Meissner,Marius Wernig,Kathrin Plath,Rudolf Jaenisch,Alexandre Wagschal,Robert Feil,Stuart L. Schreiber,Stuart L. Schreiber,Eric S. Lander,Eric S. Lander +17 more
TL;DR: It is proposed that bivalent domains silence developmental genes in ES cells while keeping them poised for activation, highlighting the importance of DNA sequence in defining the initial epigenetic landscape and suggesting a novel chromatin-based mechanism for maintaining pluripotency.
Journal ArticleDOI
ROS Function in Redox Signaling and Oxidative Stress
TL;DR: It is argued that redox biology, rather than oxidative stress, underlies physiological and pathological conditions.