RIVIERE Guillaume
Professor
PHARE
CAMPUS I, CAEN
guillaume.riviere@unicaen.fr
+33 2 31 56 51 13

Research themes

Epigenetic and Epitranscriptomic Regulation of development and reproduction in a marine invertebrate: understanding these mechanisms within an Eco-Evo-Devo framework.

How have epigenetic regulation, its molecular mechanisms, and their biological significance evolved?

How is the development of organisms, in a changing environment that influences gene expression and chromatin structure, still so reproducible?

What is the role of chemical modifications of the nucleosome in the transient establishment of specific transcriptomes and in cell differentiation?

What is the role of RNA methylation () in the epitranscriptomic regulation of development and the transmission of life traits?

In order to help answer these questions, I seek to understand the role of DNA methylation, RNA methylation, and more generally, the chemical modifications of nucleic acids and their regulators, in a distant model, the oyster Crassostrea (Magallana) gigas. My research activities focus on understanding and describing epigenetic and epitranscriptomic mechanisms involved in the regulation of gene expression/chromatin structure during cell differentiation and the regulation of its physiology. To achieve this, I am interested in embryo development, as well as reproduction (particularly in triploid oysters), processes that implement significant phenotypic changes in a context of different exposure/sensitivity to environmental parameters. For this work, I primarily use molecular, cellular, and biochemical approaches, including high-throughput methodologies (NGS and NNGS – Nanopore/MeDIP/MeRIP/BS-seq…) and develop in vivo functional studies.

Teaching and knowledge diffusion

Animal Biology, Epigenetics, Cell Biology, Developmental Biology, Evolution.

Admin responsabilities

Co-Head of the Bachelor’s Degree in Life Sciences 3rd year Biology and Physiology of Organisms pathway

Co-Head of Research for the Aquacaen Master’s M2 program

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