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根据在花生上的症状，将５个ＰＳｔＶ中国分离物划分为轻斑驳、斑块和坏死三个株系类型。在其它鉴别寄主上，５个ＰＳｔＶ分离物有相似的症状。轻斑驳株系对花生主茎高度影响不明显，荚果减产２１．０％～３５．６％，种子带毒率高；而斑块型株系分别降低花生主茎高度和荚果产量９．２％～１６．３％和３０．３％～５４．４％，种子带毒率低。５个分离物能被豆蚜以不同效率传播。３个ＰＳｔＶ中国分离物壳蛋白基因均由８６１个核苷酸组成，核苷酸序列同源性为９９．５％～１００％，氨基酸序列同源性为１００％。它们与ＰＳｔＶ美国株系同源性最高，与印度尼西亚株系同源性次之，而与泰国株系同源性最低。
Based on the symptoms on peanuts, five PStV Chinese isolates were divided into three types of light-mottled, plaque-necrotic and necrotic lines. Five other PStV isolates had similar symptoms on other identifying hosts. The light mottled lines had no significant effect on the height of the main stem of peanut. The pod yield was reduced by 21.0% -35.6% and the rate of seed poisoning was high. The plaque-type lines reduced the main stem height and pod yield of peanut by 9.2% ~ 16.3% and 30.3% ~ 54.4%, respectively. Five isolates can be transmitted by different levels of soybean aphid. The three putative capsid genes of the PStV isolates from China were all composed of 861 nucleotides with nucleotide sequence homology of 99.5% -100% and amino acid sequence homology of 100%. They shared the highest homology with the PStV strain in the United States, the second was homologous with the Indonesian strain, and the second was homologous with the Thai strain.