A Comparative Analysis of Oocyte Development in Mammals

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Dalbies-Tran, Rozenn | Cadoret, Véronique | Desmarchais, Alice | Elis, Sébastien | Maillard, Virginie | Monget, Philippe | Monniaux, Danielle | Reynaud, Karine | Saint-Dizier, Marie | Uzbekova, Svetlana

Edité par CCSD ; MDPI -

International audience. Sexual reproduction requires the fertilization of a female gamete after it has undergone optimal development. Various aspects of oocyte development and many molecular actors in this process are shared among mammals, but phylogeny and experimental data reveal species specificities. In this chapter, we will present these common and distinctive features with a focus on three points: the shaping of the oocyte transcriptome from evolutionarily conserved and rapidly evolving genes, the control of folliculogenesis and ovulation rate by oocyte-secreted Growth and Differentiation Factor 9 and Bone Morphogenetic Protein 15, and the importance of lipid metabolism.

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