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<p>In Japan, only one satsuma dwarf virus (SDV) isolate has been fully sequenced to date. This study provides complete genome sequences of six SDV isolates for which only partial sequences had been determined and three for which no sequence data were available. Among all known isolates, nucleotide sequence identity was found to range from 67.9 to 98.6% for RNA1 and from 67.9 to 98.8% for RNA2. The amino acid sequence identity in the coat protein (CP) ranged from 76.9 to 99.2%. Phylogenetic analysis revealed that five of the nine newly sequenced isolates clustered with the citrus mosaic virus (CiMV) strain, two with the SDV strain, and one each with the navel orange infectious mottling virus (NIMV) and hyuganatsu virus (HV) strains.</p>

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Complete nucleotide sequences of nine isolates of satsuma dwarf virus in Japan and analysis of their genetic diversity

  • 期刊论文

  • 发表日期：

    2026年1月7日

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  • Yuya Chiaki,
  • Yosuke Matsushita,
  • Toru Iwanami

摘要

In Japan, only one satsuma dwarf virus (SDV) isolate has been fully sequenced to date. This study provides complete genome sequences of six SDV isolates for which only partial sequences had been determined and three for which no sequence data were available. Among all known isolates, nucleotide sequence identity was found to range from 67.9 to 98.6% for RNA1 and from 67.9 to 98.8% for RNA2. The amino acid sequence identity in the coat protein (CP) ranged from 76.9 to 99.2%. Phylogenetic analysis revealed that five of the nine newly sequenced isolates clustered with the citrus mosaic virus (CiMV) strain, two with the SDV strain, and one each with the navel orange infectious mottling virus (NIMV) and hyuganatsu virus (HV) strains.