山东省辣椒主要病毒种类的分子检测与鉴定  

Molecular Detection and Identification of Main Viruses on Pepper in Shandong Province

作　　者：王少立[1] 谭玮萍 杨园园[1] 代惠洁[2] 孙晓辉[1] 乔宁[1,2] 竺晓平[1] 

机构地区：[1]山东农业大学植物保护学院/山东省蔬菜病虫生物学重点实验室,山东泰安271018 [2]潍坊科技学院,山东寿光262700

出　　处：《中国农业科学》2017年第14期2728-2738,共11页Scientia Agricultura Sinica

基　　金：国家公益性行业(农业)科研专项(201303028);山东省科技发展计划(2014GNC111008)

摘　　要：【目的】鉴定山东省辣椒上的主要病毒种类,明确该地区辣椒上的主要病毒病原。【方法】2014—2015年,在山东省临沂、日照、青岛、烟台、潍坊、淄博、济宁、菏泽、聊城、德州共10个市(区)采集253份疑似感病的辣椒植株叶片,提取叶片总RNA和总DNA,利用双生病毒的通用引物(PA/PB)、马铃薯卷叶病毒属通用引物(POL-F/POL-R)及已报道侵染辣椒的主要病毒的检测引物对样品进行PCR、RT-PCR分子检测与鉴定,将扩增得到的目的条带经凝胶回收试剂盒回收纯化后连接到pMD18-T载体上,再送至公司进行克隆测序。分别将所得的PMMoV、PeVYV和BWYV序列在NCBI上利用BLAST进行检索,利用DNAStar软件中的Megalign将所得序列与Gen Bank中已登录的世界各地有代表性的序列进行同源性比对,利用软件MEGA 5.05的Clustal W法进行多序列比对分析以及邻接法(neighbor-joining,NJ)构建系统进化树,系统进化树中各分支置信度(Bootstrap)进行1 000次重复分析。【结果】PMMoV、CMV总检出率分别为61.66%、60.08%;TMGMV、BBWV-2、BWYV、TMV发生也比较普遍,检出率为41.90%、34.78%、33.20%和24.90%;PCV-2、ToMV、TYLCV、PVY、MABYV、PeVYV、PCV-1、ChiVMV、AMV发生侵染现象较少,检出率分别为11.86%、9.88%、9.09%、6.72%、5.53%、3.56%、3.16%、0.79%和0.40%;未检测到Ca CV、PSV、Chi RSV、TSWV和To MMV。通过对病毒复合侵染现象进行分析发现,病毒复合侵染率高达89.92%,其中3种病毒复合侵染现象最多,所占比例达28.63%,4种病毒复合侵染率为25.00%,2种病毒复合侵染率为21.77%,5种病毒复合侵染率为13.31%,一个辣椒样品最多可同时感染6种病毒,侵染率为1.21%;对山东省10个地区的辣椒病毒检测,结果表明在辣椒上检出病毒种类最多的为临沂、济宁,检测到12种病毒,其次是烟台、聊城,检测到11种病毒,潍坊、菏泽检测到9种病毒,青岛、德州检测到8种病毒,日照检测到7种病毒,淄博检�【Objective】 The objective of this study is to identify the main viruses causing pepper virus diseases in Shandong Province, China.【Method】In 2014-2015, a total of 253 susceptible pepper plant samples were collected from 10 urban areas （Linyi, Rizhao, Qingdao, Yantai, Weifang, Zibo, Jining, Heze, Liaocheng, Dezhou） in Shandong Province. Total RNA and DNA were extracted from the leaves of pepper samples, and were subjected to detect viruses with Geminivirus universal primers （PA/PB）, Polerovirus universal primers （POL-F/POL-R） and specific primers of main viruses infecting pepper have been reported by PCR and reverse transcription-PCR （RT-PCR）. Each amplified fragment was purified by DNA gel extraction kit, cloned into pMD18-T vector and sequenced. The obtained sequences of PMMoV, PeVYV and BWYV were subjected to BLAST search, and compared with the representative sequences of GenBank which had been registered around the world using the Megalign in DNAStar software. Clustal W method of MEGA 5.05 was used for multiple sequence alignment analysis and the phylogenetic tree were constructed by neighbor-joining （NJ） of MEGA 5.05, with the bootstrap of each branch of phylogenetic tree analyzed 1 000 times. 【Result】The PMMoV and CMV had the highest detection rate, were 61.66% and 60.08%, respectively. TMGMV, BBWV-2, BWYV and TMV were popular with the detection rate of 41.90%, 34.78%, 33.20% and 24.90%, respectively. The detection rates of PCV-2, ToMV, TYLCV, PVY, MABYV, PeVYV, PCV-1, ChiVMV and AMV were 11.86%, 9.88%, 9.09%, 6.72%, 5.53%, 3.56%, 3.16%, 0.79% and 0.40%, respectively. No CaCV, PSV, ChiRSV, TSWV and ToMMV were detected. The complex infection phenomenon showed that co-infections were up to 89.92%, three kinds of viruses mixed infection occurs the highest rate, up to 28.63%, followed by four kinds of viruses mixed infection, up to 25.00%, two kinds of viruses mixed infection, up to 21.77%, five kinds of viruses mixed infection up to 13.31%, and 6 viruses detected in one sample is

关 键 词：辣椒病毒病 辣椒轻斑驳病毒 甜菜西方黄化病毒 甜瓜蚜传黄化病毒 复合侵染 

分 类 号：S436.418[农业科学—农业昆虫与害虫防治]