University of Goettingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Goldschmidtstr. 1, 37077 Goettingen, Germany.
Section Phylogenomics, Centre for Molecular biodiversity Research, Leibniz Institute for the Analysis of Biodiversity Change (LIB), Museum of Nature Hamburg, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany.
J Cell Sci. 2024 Sep 1;137(17). doi: 10.1242/jcs.261712. Epub 2024 Sep 6.
Land plants are astounding processors of information; due to their sessile nature, they adjust the molecular programs that define their development and physiology in accordance with the environment in which they dwell. Transduction of the external input to the respective internal programs hinges to a large degree on molecular signaling cascades, many of which have deep evolutionary origins in the ancestors of land plants and its closest relatives, streptophyte algae. In this Review, we discuss the evolutionary history of the defining factors of streptophyte signaling cascades, circuitries that not only operate in extant land plants and streptophyte algae, but that also likely operated in their extinct algal ancestors hundreds of millions of years ago. We hope this Review offers a starting point for future studies on the evolutionary mechanisms contributing to the current diversity and complexity of plant signaling pathways, with an emphasis on recognizing potential biases.
陆生植物是令人惊叹的信息处理者；由于它们的固着特性，它们会根据所处的环境来调整决定其发育和生理的分子程序。外部输入到相应内部程序的转换在很大程度上取决于分子信号级联，其中许多信号级联在陆生植物及其最亲近的近亲——石松类藻类的祖先中具有深远的进化起源。在这篇综述中，我们讨论了石松类信号级联的定义因素的进化历史，这些级联不仅在现存的陆生植物和石松类藻类中起作用，而且很可能在数亿年前它们已灭绝的藻类祖先中起作用。我们希望这篇综述为未来研究对植物信号通路当前多样性和复杂性做出贡献的进化机制提供一个起点，重点是认识到潜在的偏见。
