Premium
Origin and evolution of the plant immune system
Author(s) -
Han GuanZhu
Publication year - 2019
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/nph.15596
Subject(s) - plant evolution , biology , coevolution , evolutionary biology , genome , evolutionary dynamics , tree of life (biology) , evolutionary ecology , phylogenetics , plant immunity , ecology , host (biology) , genetics , gene , arabidopsis , population , demography , sociology , mutant
ContentsSummary 70 I. Introduction 70 II. Ancient associations between plants and microbes 72 III. Evolutionary dynamics of plant–pathogen interactions 74 IV. Evolutionary signature of plant–pathogen interactions 74 V. Origin and evolution of RLK proteins 75 VI. Origin and evolution of NLR proteins 77 VII. Origin and evolution of SA signaling 78 VIII. Origin and evolution of RNA‐based defense 79 IX. Perspectives 79Acknowledgements 80References 80Summary Microbes have engaged in antagonistic associations with plants for hundreds of millions of years. Plants, in turn, have evolved diverse immune strategies to combat microbial pathogens. The conflicts between plants and pathogens result in everchanging coevolutionary cycles known as ‘Red Queen’ dynamics. These ancient and ongoing plant–pathogen interactions have shaped the evolution of both plant and pathogen genomes. With the recent explosion of plant genome‐scale data, comparative analyses provide novel insights into the coevolutionary dynamics of plants and pathogens. Here, we discuss the ancient associations between plants and microbes as well as the evolutionary principles underlying plant–pathogen interactions. We synthesize and review the current knowledge on the origin and evolution of key components of the plant immune system. We also highlight the importance of studying algae and nonflowering land plants in understanding the evolution of the plant immune system.