Genomic analysis,trajectory tracking,and field surveys reveal sources and long-distance dispersal routes of wheat stripe rust pathogen in China  

作　　者：Yuxiang Li Jichen Dai Taixue Zhang Baotong Wang Siyue Zhang Conghao Wang Jiguang Zhang Qiang Yao Mingju Li Chengyun Li Yuelin Peng Shiqin Cao Gangming Zhan Fei Tao Haifeng Gao Weili Huang Xiaojun Feng Yingwen Bai Zhuoma Qucuo Hongsheng Shang Chong Huang Wancai Liu Jiasui Zhan Xiangming Xu Xianming Chen Zhensheng Kang Xiaoping Hu 

机构地区：[1]State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection,Northwest A&F University,Taicheng Road 3,Yangling,Shaanxi,China [2]KeyLaboratory of Agricultural Integrated PestManagement,Qinghai Province,Academyof Agriculture and ForestryScience,Qinghai University,Xining,Qinghai,China [3]Yunnan Key Laboratory of Green Prevention and Control of Agricultural Transboundary Pests,Agricultural Environment and Resource Institute,Yunnan Academy of Agricultural Sciences,Kunming,Yunnan,China [4]State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan,Yunnan Agricultural University,Kunming,Yunnan,China [5]Department of Plant Pathology,Tibet Agricultural and Animal Husbandry College,Linzhi,Tibet,China [6]Wheat Research Institute,Gansu Academy of Agricultural Sciences,Lanzhou,Gansu,China [7]Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province,College of Plant Protection,Gansu Agricultural University,Lanzhou,Gansu,China [8]Institute of Plant Protection,Xinjiang Academy of Agricultural Sciences,Urumqi,Xinjiang,China [9]Xi’an Huang’s Bio-technology Company Ltd,Xi’an,Shaanxi,China [10]Shaanxi Plant Protection Extension Station,Xi’an,Shaanxi,China [11]Baoji Plant Protection Extension Station,Baoji,Shaanxi,China [12]National Agricultural Technology Extension and Service Center,Ministry of Agriculture,Beijing,China [13]Department of Forest Mycology and Plant Pathology,Swedish University of Agricultural Sciences,Uppsala,Sweden [14]Pest&Pathogen Ecology,NIAB EMR,East Malling,West Malling,Kent,UK [15]Agricultural Research Service,United States Department of Agriculture and Department of Plant Pathology,Washington State University,Pullman,WA,USA

出　　处：《Plant Communications》2023年第4期174-188,共15页植物通讯（英文）

基　　金：supported by the National Key Research and Development Program of China to X.H.and Y.L.(2021YFD1401000);the National Natural Science Foundation of China(31471731 and 31772102)to X.H.;the Postdoctoral Science Foundation of China to Y.L.(2021M690130).

摘　　要：Identifying sources of phytopathogen inoculum and determining their contributions to disease outbreaks are essential for predicting disease development and establishing control strategies.Puccinia striiformis f.sp.tritici(Pst),the causal agent of wheat stripe rust,is an airborne fungal pathogen with rapid virulence variation that threatens wheat production through its long-distance migration.Because of wide variation in geographic features,climatic conditions,and wheat production systems,Pst sources and related dispersal routes in China are largely unclear.In the present study,we performed genomic analyses of 154 Pst isolates from all major wheat-growing regions in China to determine Pst population structure and diversity.Through trajectory tracking,historical migration studies,genetic introgression analyses,and field surveys,we investigated Pst sources and their contributions to wheat stripe rust epidemics.We identified Longnan,the Himalayan region,and the Guizhou Plateau,which contain the highest population genetic diversities,as the Pst sources in China.Pst from Longnan disseminates mainly to eastern Liupan Mountain,the Sichuan Basin,and eastern Qinghai;that from the Himalayan region spreads mainly to the Sichuan Basin and eastern Qinghai;and that from the Guizhou Plateau migrates mainly to the Sichuan Basin and the Central Plain.These findings improve our current understanding of wheat stripe rust epidemics in China and emphasize the need for managing stripe rust on a national scale.

关 键 词：Puccinia striiformis f.sp.tritici stripe rust disease epidemics population genetics genome sequencing 

分 类 号：S435[农业科学—农业昆虫与害虫防治]