Abstract:
:Helminthosporium victoriae virus 190S (HvV190S) is the type species of the genus Victorivirus under the family Totiviridae. To date, HvV190S has never been found in places outside of the USA and has Helminthosporium victoriae as its only know natural host fungus in the field. Here, we report the identification of 4 double-stranded RNA (dsRNA) viruses from Bipolaris maydis in Hubei province of China. Interestingly, the genomes of the 4 viruses show 81.2 %-85.5 % nucleotide sequence identities to HvV190S. Their capsid protein (CP) and RNA-dependent RNA polymerase (RdRp) share 95.5-97.9 % and 94.6-96.6 % amino acid sequence identities to corresponding proteins of HvV190S. Therefore, the 4 viruses, which show 81.8-87.3 % pairwise genome sequence identities, should be considered as distinct isolates of HvV190S. Our finding suggests that HvV190S is widely distributed in the world and may infect fungal species other than H. victoriae.
journal_name
Virus Resjournal_title
Virus researchauthors
Wu R,Yang Y,Duan X,An H,Du Z,Zhang S,Zhang Xdoi
10.1016/j.virusres.2020.197941subject
Has Abstractpub_date
2020-08-01 00:00:00pages
197941eissn
0168-1702issn
1872-7492pii
S0168-1702(20)30027-7journal_volume
285pub_type
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