Scholarlink

<p><i>Colletotrichum gloeosporioides</i> is a major phytopathogenic ascomycete that causes anthracnose disease in cardamom plants. Here, we report the discovery of a novel double-stranded (ds) RNA virus in <i>C. gloeosporioides</i>. The virus genome consisted of four dsRNA segments, ranging in length from 2522&#xa0;bp to 1236&#xa0;bp. Each dsRNA has a single open reading frame flanked by 5′ and 3′ untranslated regions (UTRs). dsRNA1 codes for RNA-dependent RNA polymerase (RdRp) and dsRNA2 codes for a hypothetical protein with maximum similarity to Colletotrichum gloeosporioides polymycovirus 1 and Colletotrichum camelliae filamentous virus 1, respectively. The methyltransferase encoded by dsRNA3 and the proline–alanine–serine-rich protein (PASrp) encoded by dsRNA4 showed similarity to those of Fusarium redolens polymycovirus 1. Phylogenetic analysis based on RdRp sequences revealed that this virus clusters with known members of the family <i>Polymycoviridae</i>. Based on these observations, this virus isolate is tentatively named Colletotrichum gloeosporioides polymycovirus 2 (CgPmV2). To our knowledge, this is the first report of a polymycovirus from India.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Molecular characterization of a novel polymycovirus in Colletotrichum gloeosporioides infecting small cardamom from India

  • 期刊论文

  • 发表日期：

    2026年2月16日

查看全文
  • Megha Das,
  • A. I. Bhat

摘要

Colletotrichum gloeosporioides is a major phytopathogenic ascomycete that causes anthracnose disease in cardamom plants. Here, we report the discovery of a novel double-stranded (ds) RNA virus in C. gloeosporioides. The virus genome consisted of four dsRNA segments, ranging in length from 2522 bp to 1236 bp. Each dsRNA has a single open reading frame flanked by 5′ and 3′ untranslated regions (UTRs). dsRNA1 codes for RNA-dependent RNA polymerase (RdRp) and dsRNA2 codes for a hypothetical protein with maximum similarity to Colletotrichum gloeosporioides polymycovirus 1 and Colletotrichum camelliae filamentous virus 1, respectively. The methyltransferase encoded by dsRNA3 and the proline–alanine–serine-rich protein (PASrp) encoded by dsRNA4 showed similarity to those of Fusarium redolens polymycovirus 1. Phylogenetic analysis based on RdRp sequences revealed that this virus clusters with known members of the family Polymycoviridae. Based on these observations, this virus isolate is tentatively named Colletotrichum gloeosporioides polymycovirus 2 (CgPmV2). To our knowledge, this is the first report of a polymycovirus from India.