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<p>Over the past three decades, cetacean morbilliviruses (CeMVs) have emerged as significant pathogens affecting cetacean populations worldwide. Here, we report the genome sequence of a new CeMV, designated Fraser’s dolphin morbillivirus (FDMV), isolated from a stranded Fraser’s dolphin (<i>Lagenodelphis hosei</i>) in Hawaiʻi in 2018. Next-generation sequencing facilitated recovery of the nearly complete FDMV genome (15,685&#xa0;bp), and annotation indicated a genomic organization similar to that of other morbilliviruses, including six open reading frames. Genetic analysis of the FDMV RNA-dependent RNA polymerase gene sequence showed 87–89.6% nucleotide sequence identity compared with other CeMV strains. Phylogenetic analysis demonstrated that FDMV is a distinct member of the genus <i>Morbillivirus</i>, branching as the most basal member of the CeMV clade, which may represent a new species.</p>

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Genome sequence of Fraser’s dolphin morbillivirus isolated from a stranded Fraser’s dolphin (Lagenodelphis hosei) in Hawaiʻi

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月7日

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  • Nelmarie Landrau-Giovannetti,
  • Thomas B. Waltzek,
  • John A. Lednicky,
  • Kristi West

摘要

Over the past three decades, cetacean morbilliviruses (CeMVs) have emerged as significant pathogens affecting cetacean populations worldwide. Here, we report the genome sequence of a new CeMV, designated Fraser’s dolphin morbillivirus (FDMV), isolated from a stranded Fraser’s dolphin (Lagenodelphis hosei) in Hawaiʻi in 2018. Next-generation sequencing facilitated recovery of the nearly complete FDMV genome (15,685 bp), and annotation indicated a genomic organization similar to that of other morbilliviruses, including six open reading frames. Genetic analysis of the FDMV RNA-dependent RNA polymerase gene sequence showed 87–89.6% nucleotide sequence identity compared with other CeMV strains. Phylogenetic analysis demonstrated that FDMV is a distinct member of the genus Morbillivirus, branching as the most basal member of the CeMV clade, which may represent a new species.