The Virome of Babaco (Vasconcellea × heilbornii) Expands to Include New Members of the Rhabdoviridae and Bromoviridae

Edison G. Reyes-Proaño, Maria G. Cañada-Bautista, Juan F. Cornejo-Franco, Robert A. Alvarez-Quinto, Dimitre Mollov, Eduardo Sanchez-Timm, Diego F. Quito-Avila

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Babaco (Vasconcellea × heilbornii) is a subtropical species in the Caricaceae family. The plant is native to Ecuador and represents an important crop for hundreds of families. The objective of this study was to characterize, at the genomic level, two new babaco viruses identified by high-throughput sequencing. The viruses, an ilarvirus and a nucleorhabdovirus, were found in a symptomatic babaco plant from a commercial nursery in the Azuay province of Ecuador. The tripartite genome of the new ilarvirus, provisionally named babaco ilarvirus 1 (BabIV-1), is related to subgroup 3 ilarviruses, including apple mosaic virus, apple necrotic mosaic virus, and prunus necrotic ringspot virus as the closest relatives. The genome of the nucleorhabdovirus, provisionally named babaco nucleorhabdovirus 1 (BabRV-1), showed the closest relation with joa yellow blotch-associated virus and potato yellow dwarf nucleorhabdovirus. Molecular-based detection methods found BabIV-1 and BabRV-1 in 21% and 36%, respectively, of plants surveyed in a commercial babaco nursery, highlighting the importance of enforcing virus testing and nursery certification programs for babaco.

Original languageEnglish (US)
Article number1380
JournalViruses
Volume15
Issue number6
DOIs
StatePublished - Jun 2023
Externally publishedYes

Bibliographical note

Funding Information:
This study was funded in part by the Ecuadorian Corporation for the Development of Research and Academia (CEDIA) under project code CEPRA XV-2021-06 and the Research Department at ESPOL.

Publisher Copyright:
© 2023 by the authors.

Keywords

  • high-throughput sequencing
  • Ilarvirus
  • mountain papaya
  • Nucleorhabdovirus
  • plant virus discovery

PubMed: MeSH publication types

  • Journal Article
  • Research Support, Non-U.S. Gov't

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