학술논문
Genomic and biological characterization of a novel partitivirus infecting Fusarium equiseti.
Document Type
Academic Journal
Author
Mahillon M; Earth and Life Institute, Applied Microbiology-Phytopathology, UCLouvain, Louvain-la-Neuve, Belgium.; Decroës A; Earth and Life Institute, Applied Microbiology-Phytopathology, UCLouvain, Louvain-la-Neuve, Belgium.; Caulier S; Earth and Life Institute, Applied Microbiology-Phytopathology, UCLouvain, Louvain-la-Neuve, Belgium.; Tiendrebeogo A; Earth and Life Institute, Applied Microbiology-Phytopathology, UCLouvain, Louvain-la-Neuve, Belgium; Natural System, Agrosystem and Environmental Engineering, Phytopathology, Nazi Boni University, Bobo-Dioulasso, Burkina-Faso.; Legrève A; Earth and Life Institute, Applied Microbiology-Phytopathology, UCLouvain, Louvain-la-Neuve, Belgium.; Bragard C; Earth and Life Institute, Applied Microbiology-Phytopathology, UCLouvain, Louvain-la-Neuve, Belgium. Electronic address: claude.bragard@uclouvain.be.
Source
Publisher: Elsevier Science Country of Publication: Netherlands NLM ID: 8410979 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1872-7492 (Electronic) Linking ISSN: 01681702 NLM ISO Abbreviation: Virus Res Subsets: MEDLINE
Subject
Language
English
Abstract
This study describes a new mycovirus infecting a strain from the Fusarium incarnatum-equiseti species complex. Based on phylogenetic and genomic analyses, this virus belongs to the recently proposed genus "Zetapartitivirus" in the family Partitiviridae. The name "Fusarium equiseti partitivirus 1″ (FePV1) is therefore suggested for this novel viral species. Similar to other partitiviruses, FePV1 genome is composed by two dsRNA segments that exhibit each one large ORF encoding for an RdRp and a CP, respectively. A smaller dsRNA was also detected in infected mycelium and could be a satellite RNA of FePV1. In addition to characterized zetapartitiviruses, other FePV1-related sequences were retrieved from online databases and their significance is discussed. Following conidial isolation, an FePV1-free isogenic line of the fungal host was obtained. In comparison with the original infected strain, this line showed higher growth, biomass production and pathogenicity on tomato, advocating that FePV1 induces hypovirulence on its host.
(Copyright © 2021 Elsevier B.V. All rights reserved.)
(Copyright © 2021 Elsevier B.V. All rights reserved.)