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Virus Genes. 2021 Dec;57(6):566-570. doi: 10.1007/s11262-021-01867-4. Epub 2021 Sep 15.

Genome characterization of fig umbra-like virus.

Virus genes

Xupeng Wang, Alejandro Olmedo-Velarde, Adriana Larrea-Sarmiento, Anne E Simon, Alexandra Kong, Wayne Borth, Jon Y Suzuki, Marisa M Wall, John Hu, Michael Melzer

Affiliations

  1. Department of Plant and Environmental Protection Sciences, University of Hawaii, Honolulu, HI, USA.
  2. Department of Cell Biology and Molecular Genetics, University of Maryland College Park, College Park, MD, USA.
  3. United States Department of Agriculture, Agricultural Research Service, Pacific Basin Agricultural Research Center, Hilo, HI, USA.
  4. Department of Plant and Environmental Protection Sciences, University of Hawaii, Honolulu, HI, USA. [email protected].
  5. Department of Plant and Environmental Protection Sciences, University of Hawaii, Honolulu, HI, USA. [email protected].

PMID: 34524603 DOI: 10.1007/s11262-021-01867-4

Abstract

The complete genome of a new umbra-like virus from edible fig (Ficus carica) was identified by high-throughput sequencing. Based on its similarity to umbra-like virus genome sequences available in GenBank, the proposed name of this new virus is "fig umbra-like virus" (FULV). The genome of full-length FULV-1 consists of 3049 nucleotides organized into three open reading frames (ORFs). Pairwise comparisons showed that the complete nucleotide sequence of the virus had the highest identity (71.3%) to citrus yellow vein-associated virus (CYVaV). In addition, phylogenetic trees based on whole-genome nucleotide sequences and amino acid sequences of the RNA-dependent RNA polymerase showed that FULV forms a monophyletic lineage with CYVaV and other umbra-like viruses. Based on the demarcation criteria of the genus Umbravirus, and lack of two umbravirus ORFs, we propose that FULV is a putative new member of the umbra-like virus clade within the family Tombusviridae.

© 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

Keywords: Fig; Hawaii; High-throughput sequencing; New species; Umbra-like virus

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