Contribution of Duplicated Nucleotide-Binding Leucine-Rich Repeat (NLR) Genes to Wheat Disease Resistance
文献类型： 外文期刊
作者： Hao, Yongchao 1 ; Pan, Yinghua 2 ; Chen, Wuying 1 ; Rashid, Muhammad Abdul Rehman 3 ; Li, Mengyao 1 ; Che, Naixiu 1 ; Duan, Xu 1 ; Zhao, Yan 1 ;
作者机构： 1.Shandong Agr Univ, Coll Agron, State Key Lab Crop Biol, Tai An 271018, Peoples R China
2.Guangxi Acad Agr Sci, Rice Res Inst, Guangxi Key Lab Rice Genet & Breeding, Nanning 530007, Peoples R China
3.Govt Coll Univ Faisalabad, Dept Agr Sci Bioinformat & Biotechnol, Faisalabad 38000, Pakistan
关键词： wheat; nucleotide-binding leucine-rich repeat; NLR genes; gene duplication; disease resistance
期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）
ISSN：
年卷期： 2023 年 12 卷 15 期
页码：
收录情况： SCI
摘要： Wheat has a large and diverse repertoire of NLRs involved in disease resistance, with over 1500 NLRs detected in some studies. These NLR genes occur as singletons or clusters containing copies of NLRs from different phylogenetic clades. The number of NLRs and cluster size can differ drastically among ecotypes and cultivars. Primarily, duplication has led to the evolution and diversification of NLR genes. Among the various mechanisms, whole genome duplication (WGD) is the most intense and leading cause, contributing to the complex evolutionary history and abundant gene set of hexaploid wheat. Tandem duplication or recombination is another major mechanism of NLR gene expansion in wheat. The diversity and divergence of duplicate NLR genes are responsible for the broad-spectrum resistance of most plant species with limited R genes. Understanding the mechanisms underlying the rapid evolution and diversification of wheat NLR genes will help improve disease resistance in crops. The present review focuses on the diversity and divergence of duplicate NLR genes and their contribution to wheat disease resistance. Moreover, we provide an overview of disease resistance-associated gene duplication and the underlying strategies in wheat.
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