Abstract
Germline specification is a fundamental process in plant reproduction, and the Megaspore Mother Cell (MMC), is a critical cell that differentiates and develops into the female gametophyte. While numerous studies have investigated the molecular mechanisms underlying female germline specification, previous reviews have mainly focused on gene regulatory networks, epigenetic pathways, and small RNAs, neglecting the potential contribution of phytohormones to this process. This review aims to address this gap by highlighting recent advances in MMC formation and discussing the roles of specific phytohormones in female germline specialization. Here, we provide a comprehensive overview of the functions of phytohormones in the formation of MMC and their effects on female gametophyte development. Specifically, it examines the roles of gibberellins (GAs), brassinosteroids (BRs), auxins, and cytokinin, in MMC development. Understanding the function of phytohormones in MMC development is essential for comprehending the complex mechanisms underlying plant reproduction. This review adds valuable insights to the existing knowledge on MMC development, providing a new perspective for future research in the field of plant reproduction.
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