马铃薯Y病毒株系分类及中国大田马铃薯感染的马铃薯Y病毒株系谱研究进展  

Progress of Potato virus Y Strain Classification and Analysis of Profile of Potato virus Y Strains Infecting Potato in China

作　　者：梁五生[1] 温雪玮 刘洪义 刘忠梅 

机构地区：[1]浙江大学农业与生物技术学院生物技术研究所/水稻生物学国家重点实验室,杭州310058 [2]黑龙江出入境检验检疫局检验检疫技术中心/国家马铃薯病毒检测重点实验室,哈尔滨150001

出　　处：《中国农学通报》2015年第21期136-143,共8页Chinese Agricultural Science Bulletin

基　　金：国家质量监督检验检疫总局科技计划项目"基于Pyro Mark ID平台的马铃薯Y病毒检疫鉴定技术研究"(2008IK242);国家质量监督检验检疫总局科技计划项目"环介导等温扩增技术(LAMP)检测马铃薯病毒方法的研究"(2013IK274);国家标准委国家标准计划项目"马铃薯Y病毒检疫鉴定方法"(20120579-T-469);国家自然科学基金资助项目"交替氧化酶诱导植物抗病毒侵染的机理研究"(30870187)

摘　　要：为了更科学、合理地检测、检疫马铃薯Y病毒(PVY)株系,和全面掌握侵染中国大田马铃薯的PVY株系情况,总结了PVY株系的分类方法,分析了中国大田马铃薯感染的PVY株系谱。认为目前广泛使用的血清型划分法、基因组重组与否划分法、PTNRD效应划分法、过敏反应互作基因划分法,以及Singh等提出的株系群划分法都无法对PVY株系予以完全合理的划分。提出有必要鉴定PVY基因组中决定马铃薯病理效应的基序并通过对基序测序来鉴定PVY株系,通过对株系间基因组差异区段的短序列测序来鉴定PVY株系是目前最接近基序测序分类法的思路。指出感染中国大田马铃薯的PVY目前有PVYO、PVYN、PVYNTN、PVYN:O、PVYN-Wi和PVYNW这6种株系,隶属于2个株系群PVYO和PVYN,其中PVYN株系和PVYN株系群病样占绝大多数,以非重组株系为主,但重组株系已占一定比例,其发展趋势值得关注。In order to scientifically and reasonably inspect and quarantine Potato virus Y（PVY） strains andknow the profile of PVY strains infecting potato in China, the currently used PVY strain classification methodswere reviewed, and all the reported PVY isolates from potato in China were analyzed. The study pointed outthat the four widely used classification methods at present（classification by serotypes, classification based ongenome recombination, classification based on potato tuber necrotic ringspot disease, classification based onhypersensitive resistance genes）, and the classification method by strain groups suggested by Singh et al, couldnot fully and well classify the reported PVY strains. It was suggested that the specific sequences in the PVYgenomes which encoded the motifs to determine the pathogenic effects on potato were necessarily to be elucidated and used to identify PVY strains. At present, the method by sequencing short, specifically differentgenome sequences among PVY strains might be most close to the potential pathogenic motif encoding sequencemethod. The study also pointed out that six PVY strains（PVYO, PVYN, PVYNTN, PVYN：O, PVYN- Wiand PVYNW）had successfully infected the potato grown in the fields in China. PVYNwas the predominant one of them.These six PVY strains could be sorted into two strain groups（PVYOand PVYN） and PVYNgroup was thepredominant one. Among the reported PVY isolates, most were non-recombinant strains. But as recombinantstrains also accounted for a certain proportion, their development trend deserved more attention.

关 键 词：马铃薯Y病毒 病毒株系分类 马铃薯 中国 

分 类 号：S435.32[农业科学—农业昆虫与害虫防治]