Revision of taxonomic criteria for species demarcation in the family Geminiviridae, and an updated list of begomovirus species
Revision of taxonomic criteria for species demarcation in the family Geminiviridae, and an updated list of begomovirus species
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DOI：
10.1007/s00705-002-0957-5
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发表时间：
2003-02-01
影响因子：
2.7
通讯作者：
Stanley, J
中科院分区：
文献类型：
--
作者：
Fauquet, CM;Bisaro, DM;Stanley, J
双生病毒科的成员特征性地具有包装在孪生（所谓的双生）颗粒内的环状单链DNA基因组。双生病毒目前根据其基因组结构和生物学特性分为四个属[2，20]。具有单分裂基因组并通过叶蝉载体传播（主要传播至单子叶植物）的那些被包括在玉米条纹病毒属中，玉米条纹病毒是其模式种。具有与mastreviruses不同的单部分基因组并且通过叶蝉载体传播到双子叶植物的病毒包括在Curtovirus属中，甜菜曲顶病毒作为模式种。最近被国际病毒分类委员会（ICTV）[18]认可的拓扑病毒属只有一个成员（也是模式种），即番茄假曲顶病毒，其具有单部分基因组，并通过树跳载体传播到双子叶植物。Begomovirus属包含由烟粉虱Bemisia tabaci（Gennadius）传播到双子叶植物的病毒，以菜豆金黄花叶病毒（最初为菜豆金黄花叶病毒-波多黎各）为模式种。许多菜豆病毒具有双分基因组（DNA A和DNA B组分），尽管在旧世界存在许多具有单分基因组的菜豆病毒，并且有些病毒的单一组分不具有传染性，但尚未发现DNA B组分。双生病毒对世界各地许多农作物造成重大产量损失[5，7]。由于它们的经济重要性和它们的DNA基因组可以相对容易地被克隆，许多双生病毒已经被分离和表征。命名准则
Members of the family Geminiviridae characteristically have circular single-stranded DNA genomes packaged within twinned (so-called geminate) particles. Geminiviruses are currently divided into four genera on the basis of their genome organizations and biological properties [2, 20]. Those that have a monopartite genome and are transmitted by leafhopper vectors, primarily to monocotyledonous plants, are included in the genus Mastrevirus, of which Maize streak virus is the type species. Viruses that have monopartite genomes distinct from those of the mastreviruses and that are transmitted by leafhopper vectors to dicotyledonous plants are included in the genus Curtovirus, with Beet curly top virus as the type species. The genus Topocuvirus, recently recognized by the International Committee on Taxonomy of Viruses (ICTV)[18], has only one member (also the type species), Tomato pseudo-curly top virus, which has a monopartite genome and is transmitted by a treehopper vector to dicotyledonous plants. The genusBegomoviruscontains viruses that are transmitted by the whitefly Bemisia tabaci (Gennadius) to dicotyledonous plants, with Bean golden yellow mosaic virus (originally Bean golden mosaic virus–Puerto Rico) as the type species. Many begomoviruses have bipartite genomes (DNA A and DNA B components), although numerous begomoviruses with a monopartite genome occur in the Old World, and there are some for which a single component is not infectious yet no DNA B component has been found. Geminiviruses cause significant yield losses to many crop plants throughout the world [5, 7]. Because of their economic importance and the relative ease with which their DNA genomes can be cloned, many geminiviruses have been isolated and characterized. Guidelines for naming