Evolution of Plant Hormone Response Pathways

First author: Miguel A. Blázquez; Affiliations: Universidad Politécnica de Valencia (瓦伦西亚理工大学): Valencia, Spain

Corresponding author: Miguel A. Blázquez

This review focuses on the evolution of plant hormone signaling pathways. Like the chemical nature of the hormones themselves, the signaling pathways are diverse. Therefore, we focus on a group of hormones whose primary perception mechanism involves an Skp1/Cullin/F-box-type ubiquitin ligase: auxin, jasmonic acid, gibberellic acid, and strigolactone. We begin with a comparison of the core signaling pathways of these four hormones, which have been established through studies conducted in model organisms in the Angiosperms. With the advent of next-generation sequencing and advanced tools for genetic manipulation, the door to understanding the origins of hormone signaling mechanisms in plants beyond these few model systems has opened. For example, in-depth phylogenetic analyses of hormone signaling components are now being complemented by genetic studies in early diverging land plants. Here we discuss recent investigations of how basal land plants make and sense hormones. Finally, we propose connections between the emergence of hormone signaling complexity and major developmental transitions in plant evolution.

本综述主要聚焦了植物激素信号通路。就像激素本身的化学性质一样，植物中的激素信号传导途径也是多种多样的。因此，作者重点关注了一类主要信号感知涉及一个Skp1/Cullin/F-box-type泛素连接酶的植物激素，主要有生长素、茉莉酸、赤霉素以及独脚金。作者首先比较了这四种植物激素的核心信号转导通路，这些信号通路在被子植物的模式植物中已经研究得很透彻了。随着下一代测序技术的兴起以及新的遗传操作工具的开发，越来越多的研究已经开始尝试理解模式植物以外的植物中激素信号转导机制，试图追踪植物激素信号转导的起源与演化。例如，对于早期分化形成的陆地植物中的激素信号转导组分的遗传研究补全了先前基于系统发育的分析。本文中，作者讨论了最近在基础陆地植物中有关激素合成与感知的最新研究进展。最终，作者提出了激素信号传导复杂性的出现与植物演化过程中的主要发育转变之间的关联。

通讯：Miguel A. Blázquez (http://www.ibmcp.csic.es/en/staff/mblazquezibmcpupves)

个人简介：1989年，马德里自治大学，学士；1995年，马德里自治大学，博士。

研究方向：植物中的激素信号与植物可塑性。

doi: https://doi.org/10.1146/annurev-arplant-050718-100309

Journal: Annual Review of Plant Biology

First Published: February 04, 2020