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<p>A novel RNA virus, named Pestalotiopsis hadakavirus 1 (PHaV1), was identified in strain M7 of <i>Pestalotiopsis mangiferae</i>. The complete genome of PHaV1 comprises eight RNA segments, ranging from 880 to 2581 nt in length. The RNA dependent RNA polymerase (RdRp), encoded by the RNA1, shares 53.29% protein sequence identity with Hadaka virus 1. Phylogenetic analyses based on the amino acid sequences of the RdRp indicated that PHaV1 is a novel member of family Hadakaviridae. To date, reported hadakaviruses have been identified in <i>Fusarium</i> spp. and <i>Colletotrichum fructicola</i>. PHaV1 is the first hadakavirus identified in <i>P. mangiferae</i>.</p>

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Molecular characterization of a novel hadakavirus from Pestalotiopsis mangiferae

  • 期刊论文

  • 发表日期：

    2026年2月27日

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  • Qihua Wang,
  • Mengyi Chen,
  • Quansheng Yao,
  • Xiaowei Ma,
  • Feng liu,
  • Jingbo Wu,
  • Xi Zhu,
  • Yu Zhang,
  • Xidan Pang,
  • Guohui Zhang,
  • Wanjun Liao

摘要

A novel RNA virus, named Pestalotiopsis hadakavirus 1 (PHaV1), was identified in strain M7 of Pestalotiopsis mangiferae. The complete genome of PHaV1 comprises eight RNA segments, ranging from 880 to 2581 nt in length. The RNA dependent RNA polymerase (RdRp), encoded by the RNA1, shares 53.29% protein sequence identity with Hadaka virus 1. Phylogenetic analyses based on the amino acid sequences of the RdRp indicated that PHaV1 is a novel member of family Hadakaviridae. To date, reported hadakaviruses have been identified in Fusarium spp. and Colletotrichum fructicola. PHaV1 is the first hadakavirus identified in P. mangiferae.