Thekke Veetil T, Hobbs H A, Domier L L
Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana, IL, USA.
Arch Virol. 2009;154(5):861-6. doi: 10.1007/s00705-009-0370-4. Epub 2009 Apr 10.
The amino acid sequence diversity of readthrough proteins (RTPs) of 24 dwarfing isolates of Soybean dwarf virus (SbDV) from Wisconsin and Illinois was analyzed. The RTP, a minor component of viral capsids, has a significant role in specificity of aphid transmission of luteovirids. Among the isolates, nucleotide sequence identities ranged from 95 to 100%. The predicted amino acid sequences differed at 56 amino acid positions in the 54 kDa RTD compared to only five positions in the 22 kDa CP. Phylogenetic analysis of both amino acid and nucleotide sequences showed three distinct clusters of SbDV isolates.
对来自威斯康星州和伊利诺伊州的24个大豆矮缩病毒（SbDV）矮化分离株的通读蛋白（RTP）的氨基酸序列多样性进行了分析。RTP是病毒衣壳的次要成分，在黄症病毒蚜传特异性中起重要作用。在这些分离株中，核苷酸序列同一性范围为95%至100%。与22 kDa衣壳蛋白（CP）中仅五个位置不同相比，54 kDa通读蛋白（RTD）的预测氨基酸序列在56个氨基酸位置存在差异。对氨基酸和核苷酸序列的系统发育分析显示，SbDV分离株有三个不同的聚类。
