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Small RNA deep sequencing reveals the presence of multiple viral infections in cucurbit crops in Guangdong,China

Journal of Integrative Agriculture 2022年第5期21卷 1389-1400页

作者： LI Zheng-gang NONG Yuan Tahir FAROOQ TANG Ya-fei SHE Xiao-man YU Lin LAN Guo-bing ZHOU Xue-ping HE Zi-fu Guangdong Provincial Key Laboratory of High Technology for Plant Protection Plant Protection Research InstituteGuangdong Academy of Agricultural SciencesGuangzhou 510640P.R.China State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193P.R.China State Key Laboratory of Rice Biology Institute of BiotechnologyZhejiang UniversityHangzhou 310058P.R.China

Viral diseases are among the most critical damaging factors that impose a global threat to the cucurbit *** is the world’s leading country for the production and consumption of ***,a province in southern China dominated by the tropical and subtropical climate,favors the survival of different plant viruses and their *** main cucurbit crops showing various disease symptoms were surveyed and collected to identify viruses infecting cucurbits in Guangdong during 2018–*** the field,the incidence ranged from 5-30%,or even 60-100% in the case of severely infected cucurbits.A total of 357 symptomatic samples were collected and subsequently screened for cucurbit viruses by small RNA deep sequencing and assembly(sRSA).Seventeen virus species belonging to 10 genera were identified in the five main cucurbit *** most common viruses were papaya ringspot virus(PRSV;Potyvirus),zucchini tigre mosaic virus(ZTMV;Potyvirus),zucchini yellow mosaic virus(ZYMV;Potyvirus),and watermelon silver mottle virus(WSMoV;Orthotospovirus),with infection rates of 24.4,19.0,17.1,and 14.3%,***,the most prevalent viruses were melon yellow spot orthotospovirus(MYSV)in cucumber,PRSV in squash,cucumber green mottle mosaic virus(CGMMV;Tobamovirus)in bottle gourd,WSMoV in white gourd,and ZYMV in *** infections were prevalent,and the types of mixed infections varied substantially in different cucurbit ***,the full-length nucleotide sequences of watermelon green mottle mosaic virus(WGMMV),CGMMV,and watermelon virus A(WVA;Wamavirus)identified in bottle gourd were cloned and *** study is the first reporting WGMMV infecting bottle gourd in China *** summary,the results demonstrate that in Guangdong,the most prevalent viruses belong to potyviruses,orthotospoviruses,and tobamoviruses *** findings will facilitate agricultural researchers and farmers to plan and implement effective disease control strategies aimi

关键词： cucurbit viruses small RNA deep sequencing phylogenic analyses potyviruses orthotospoviruses tobamoviruses

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