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Review Article|15 Mar 2020|OPEN
An update on the arsenal: mining resistance genes for disease management of Brassica crops in the genomic era
Honghao Lv1 , , Zhiyuan Fang1 , Limei Yang1 , Yangyong Zhang1 and Yong Wang,1
1Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, 12# Zhongguancun South Street, Beijing 100081, China
*Corresponding author. E-mail: lvhonghao@caas.cn

Horticulture Research 7,
Article number: 34 (2020)
doi: https://doi.org/10.1038/s41438-020-0257-9
Views: 256

Received: 19 Jul 2019
Revised: 12 Jan 2020
Accepted: 15 Jan 2020
Published online: 15 Mar 2020

Abstract

Brassica species include many economically important crops that provide nutrition and health-promoting substances to humans worldwide. However, as with all crops, their production is constantly threatened by emerging viral, bacterial, and fungal diseases, whose incidence has increased in recent years. Traditional methods of control are often costly, present limited effectiveness, and cause environmental damage; instead, the ideal approach is to mine and utilize the resistance genes of the Brassica crop hosts themselves. Fortunately, the development of genomics, molecular genetics, and biological techniques enables us to rapidly discover and apply resistance (R) genes. Herein, the R genes identified in Brassica crops are summarized, including their mapping and cloning, possible molecular mechanisms, and application in resistance breeding. Future perspectives concerning how to accurately discover additional R gene resources and efficiently utilize these genes in the genomic era are also discussed.