Current rice production is highly vulnerable to insect-borne viral diseases

作者：Jian-guo Wu, Guo-yi Yang, Shanshan Zhao, Shuai Zhang, Bixia Qin, Yongsheng Zhu, H. Xie, Qing Chang, Lu Wang, Jie Hu, Chao Zhang, Baogang Zhang, Dali Zeng, Jianfu Zhang, Xianbo Huang, Qian Qian, Shou‐Wei Ding, Yi Li · 发表于：National Science Review · 年份：2022 · DOI：10.1093/nsr/nwac131 · 被引用次数：34 · 研究领域：Plant Virus Research Studies、Genetic Mapping and Diversity in Plants and Animals、Genetics and Plant Breeding

Rice is one of the most important food crops and feeds more than half of the world’s population [1]. Arthropod-borne rice viruses have caused devastating epidemics in Asian countries and are a major threat to food security [2]. However, little is known about the vulnerability of rice crops to viral pathogens [3,4], especially southern rice black-streaked dwarf virus (SRBSDV), rice black-streaked dwarf virus (RBSDV) and rice gall dwarf virus (RGDV), known to induce annual outbreaks by insect transmission in some localities in Asia. To address this question, we first investigated the susceptibility of 136 conventional and hybrid rice varieties widely cultivated or approved for release in China to SRBSDV, which has been circulating in Asian countries since its first report in 2008 [2]. We monitored symptom development and asymptomatic infection in seedlings after inoculation with viruliferous white-backed plant hoppers (Sogatella furcifera, Horváth) in a greenhouse. We found that most of the varieties examined were highly susceptible to SRBSDV and developed the characteristic disease symptoms at 45 days post-inoculation (Fig. 1A and Supplementary Table S1). Infection rate under natural and greenhouse conditions and statistical disease indicators comparison of rice varieties upon RBSDV and RGDV infection and the seven identified loci through GWAS analysis. (A) The infection rate of hybrid rice, indica type and japonica type upon SRBSDV infection under greenhouse and natural condi...