Complete genome sequence of a novel alternavirus isolated from the phytopathogenic fungus Colletotrichum fioriniae

A novel double-strand RNA (dsRNA) mycovirus, named “Colletotrichum fioriniae alternavirus1” (CfAV1), was isolated from the strain CX7 of Colletotrichum fioriniae, the causal agent of walnut anthracnose. The complete genome of CfAV1 is composed of three dsRNA segments: dsRNA1 (3528 bp), dsRNA2 (2485...

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Bibliographic Details
Published in:Archives of virology 2024-04, Vol.169 (4), p.79-79, Article 79
Main Authors: Xu, Xiaowen, Li, Jincang, Hai, Du, Wang, Yixun, Li, Jinying, Zha, Yuping
Format: Article
Language:English
Subjects:
Annotated Sequence Record
Anthracnose
Biomedical and Life Sciences
Biomedicine
Colletotrichum
DNA-directed RNA polymerase
Double-stranded RNA
family
Fungi
genome
Genomes
Infectious Diseases
Medical Microbiology
mycoviruses
Nucleotide sequence
nucleotide sequences
Phylogenetics
Phylogeny
Phytopathogenic fungi
plant pathogenic fungi
Proteins
RNA
RNA polymerase
RNA-directed RNA polymerase
Virology
Viruses
walnuts
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Summary:A novel double-strand RNA (dsRNA) mycovirus, named “Colletotrichum fioriniae alternavirus1” (CfAV1), was isolated from the strain CX7 of Colletotrichum fioriniae, the causal agent of walnut anthracnose. The complete genome of CfAV1 is composed of three dsRNA segments: dsRNA1 (3528 bp), dsRNA2 (2485 bp), and dsRNA3 (2481 bp). The RNA-dependent RNA polymerase (RdRp) is encoded by dsRNA1, while both dsRNA2 and dsRNA3 encode hypothetical proteins. Based on multiple sequence alignments and phylogenetic analysis, CfAV1 is identified as a new member of the family Alternaviridae . This is the first report of an alternavirus that infects the phytopathogenic fungus C. fioriniae .
ISSN:0304-8608
1432-8798
DOI:10.1007/s00705-024-06010-w