Obrepalska-Steplowska Aleksandra, Budziszewska Marta, Pospieszny Henryk
Interdepartmental Laboratory of Molecular Biology - National Research Institute, Poznań, Poland.
Acta Biochim Pol. 2008;55(4):731-9. Epub 2008 Dec 16.
Peanut stunt virus (PSV) is a common legume pathogen present worldwide. It is also infectious for many other plants including peanut and some vegetables. Viruses of this species are classified at present into three subgroups based on their serology and nucleotide homology. Some of them may also carry an additional subviral element - satellite RNA. Analysis of the full genome sequence of a Polish strain - PSV-P - associated with satRNA was performed and showed that it may be classified as a derivative of the subgroup I sharing 83.9-87.9% nucleotide homology with other members of this subgroup. A comparative study of sequenced PSV strains indicates that PSV-P shows the highest identity level with PSV-ER or PSV-J depending on the region used for analysis. Phylogenetic analyses, on the other hand, have revealed that PSV-P is related to representatives of the subgroup I to the same degree, with the exception of the coat protein coding sequence where PSV-P is clustered together with PSV-ER.
花生矮化病毒（PSV）是一种在全球范围内普遍存在的豆类病原体。它对包括花生和一些蔬菜在内的许多其他植物也具有传染性。目前，该物种的病毒根据其血清学和核苷酸同源性分为三个亚组。其中一些病毒还可能携带一种额外的亚病毒元件——卫星RNA。对一株与卫星RNA相关的波兰毒株PSV-P的全基因组序列进行了分析，结果表明它可能被归类为亚组I的一个衍生物，与该亚组的其他成员具有83.9%-87.9%的核苷酸同源性。对已测序的PSV毒株的比较研究表明，根据用于分析的区域不同，PSV-P与PSV-ER或PSV-J的同一性水平最高。另一方面，系统发育分析表明，PSV-P与亚组I的代表具有相同程度的相关性，但在外壳蛋白编码序列方面，PSV-P与PSV-ER聚集在一起。
