Quantitative disease resistance:Multifaceted players in plant defense  

作　　者：Mingyue Gou Peter Balint-Kurti Mingliang Xu Qin Yang 

机构地区：[1]State Key Laboratory of Wheat and Maize Crop Science,Collaborative Innovation Center of Henan Grain Crops,Center for Crop Genome Engineering,College of Agronomy,Henan Agricultural University,Zhengzhou 450002,China [2]The Shennong Laboratory,Zhengzhou 450002,China [3]Department of Entomology and Plant Pathology,North Carolina State University,Raleigh,NC 27695,USA [4]Plant Science Research Unit,USDA-ARS,Raleigh,NC 27695,USA [5]State Key Laboratory of Plant Physiology and Biochemistry,National Maize Improvement Center,Center for Crop Functional Genomics and Molecular Breeding,College of Agronomy,China Agricultural University,Beijing 100193,China [6]State Key Laboratory of Crop Stress Biology for Arid Areas,Key Laboratory of Maize Biology and Genetic Breeding in Arid Area of Northwest Region of the Ministry of Agriculture,College of Agronomy,Northwest A&F University,Yangling 712100,China

出　　处：《Journal of Integrative Plant Biology》2023年第2期594-610,共17页植物学报（英文版）

基　　金：support from the National Natural Science Foundation of China(31872871 to QY and U2004207 to MG);the Fund for Distinguished Young Scholars in Henan(212300410007 to MG);the National Key Research and Development Program of China(2020YFA0907900 to QY);the Key Research and Development Program of Shaanxi(2021ZDLNY01-06 to QY)。

摘　　要：In contrast to large-effect qualitative disease resistance,quantitative disease resistance(QDR)exhibits partial and generally durable resistance and has been extensively utilized in crop breeding.The molecular mechanisms underlying QDR remain largely unknown but considerable progress has been made in this area in recent years.In this review,we summarize the genes that have been associated with plant QDR and their biological functions.Many QDR genes belong to the canonical resistance gene categories with predicted functions in pathogen perception,signal transduction,phytohormone homeostasis,metabolite transport and biosynthesis,and epigenetic regulation.However,other"atypical"QDR genes are predicted to be involved in processes that are not commonly associated with disease resistance,such as vesicle trafficking,molecular chaperones,and others.This diversity of function for QDR genes contrasts with qualitative resistance,which is often based on the actions of nucleotidebinding leucine-rich repeat(NLR)resistance proteins.An understanding of the diversity of QDR mechanisms and of which mechanisms are effective against which classes of pathogens will enable the more effective deployment of QDR to produce more durably resistant,resilient crops.

关 键 词：biological function durable resistance plant defense quantitative disease resistance(QDR) 

分 类 号：S432.23[农业科学—植物病理学]