Max Planck Institute for Developmental Biology, Max-Planck-Ring 5, 72076, Tübingen, Germany.
Donald Danforth Plant Science Center, St. Louis, MO, 63132, USA.
Plant Reprod. 2021 Dec;34(4):287-296. doi: 10.1007/s00497-021-00417-0. Epub 2021 Jun 28.
While the process of meiosis is highly conserved across eukaryotes, the sexual systems that govern life cycle phase transitions are surprisingly labile. Switches between sexual systems have profound evolutionary and ecological consequences, in particular for plants, but our understanding of the fundamental mechanisms and ultimate causes underlying these transitions is still surprisingly incomplete. We explore here the idea that brown and green algae may be interesting comparative models that can increase our understanding of relevant processes in plant reproductive biology, from evolution of gamete dimorphism, gametogenesis, sex determination and transitions in sex-determining systems.
虽然减数分裂过程在真核生物中高度保守，但控制生命周期阶段转变的有性生殖系统却惊人地不稳定。有性生殖系统之间的转换具有深远的进化和生态后果，特别是对植物而言，但我们对这些转变背后的基本机制和最终原因的理解仍然惊人地不完整。我们在这里探讨了这样一种观点，即棕色和绿色藻类可能是有趣的比较模型，可以增加我们对植物生殖生物学中相关过程的理解，包括配子二态性、配子发生、性别决定以及性别决定系统的转变的进化。
