The new plant virus family Flexiviridae and assessment of molecular criteria for species demarcation
The new plant virus family Flexiviridae and assessment of molecular criteria for species demarcation
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DOI：
10.1007/s00705-003-0304-0
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发表时间：
2004-05-01
影响因子：
2.7
通讯作者：
Fauquet, CM
中科院分区：
文献类型：
--
作者：
Adams, MJ;Antoniw, JF;Fauquet, CM
描述了新的植物病毒科 Flexiviridae。该科因其成员具有弯曲的病毒体而得名，它包括现有的Allexivirus属、Capillovirus属、Carlavirus属、Foveavirus属、Potexvirus属、Trichovirus属和Vitivirus属，以及新属Mandarivirus属以及一些未归属于任何属的相关病毒。该家族的合理性是通过聚合酶和外壳蛋白 (CP) 序列的系统发育分析得出的。为了帮助定义物种划分的合适分子标准，使用来自该科中每个可用种质的每个全测序基因的核苷酸（nt）和氨基酸（aa）序列进行了一套完整的成对比较。根据分布和数据检查，得出的结论是，作为一般规则，不同物种的数量少于约。其整个 CP 或复制蛋白基因之间 72% 的 nt 相同或 80% 的 aa 相同。
The new plant virus family Flexiviridae is described. The family is named because its members have flexuous virions and it includes the existing genera Allexivirus, Capillovirus, Carlavirus, Foveavirus, Potexvirus, Trichovirus and Vitivirus, plus the new genus Mandarivirus together with some related viruses not assigned to any genus. The family is justified from phylogenetic analyses of the polymerase and coat protein (CP) sequences. To help to define suitable molecular criteria for demarcation of species, a complete set of pairwise comparisons was made using the nucleotide (nt) and amino acid (aa) sequences of each fully-sequenced gene from every available accession in the family. Based on the distributions and on inspection of the data, it was concluded that, as a general rule, distinct species have less than ca. 72% identical nt or 80% identical aa between their entire CP or replication protein genes.