Molecular characterization of a novel mitovirus and a botoulivirus coinfecting the fungus Nigrospora oryzae
- 01.12.2025
- Annotated Sequence Record
Erschienen in:
- Verfasst von
- Jinyue Zou
- Lihong Cheng
- Yitong Chen
- Baojun Zhang
- Fan Mu
- Jichun Jia
- Erschienen in
- Archives of Virology | Ausgabe 12/2025
Abstract
In this study, we identified and characterized two mycoviruses from the Nigrospora oryzae strain WK-26: Nigrospora oryzae mitovirus 4 (NoMV4) and Nigrospora oryzae botoulivirus 1 (NoOLV1). The genome of NoMV4 is 2529 nucleotides in length, containing a single open reading frame (ORF) that encodes an RNA-dependent RNA polymerase (RdRp). BLASTp analysis revealed that NoMV4 shares the highest sequence similarity (53.06% identity) with Fusarium graminearum mitovirus 1. Phylogenetic analysis indicated that NoMV4 belongs to the genus Unuamitovirus within the family Mitoviridae. The genome of NoOLV1 is 2951 nucleotides in length and encodes an RdRp protein with the highest sequence similarity (64.46% identity) to that of Nigrospora sphaerica ourmia-like virus 1. Phylogenetic analysis suggested that NoOLV1 is a new member of the genus Deltascleroulivirus within the family Botourmiaviridae. This is the first report of the complete genome sequence of a botoulivirus in N. oryzae.
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- Titel
- Molecular characterization of a novel mitovirus and a botoulivirus coinfecting the fungus Nigrospora oryzae
- Verfasst von
-
Jinyue Zou
Lihong Cheng
Yitong Chen
Baojun Zhang
Fan Mu
Jichun Jia
- Publikationsdatum
- 01.12.2025
- Verlag
- Springer Vienna
- Erschienen in
-
Archives of Virology / Ausgabe 12/2025
Print ISSN: 0304-8608
Elektronische ISSN: 1432-8798 - DOI
- https://doi.org/10.1007/s00705-025-06441-z
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