Abstract:
:Two double-stranded RNA (dsRNA) segments of a virus with a bipartite genome identified in fig (Ficus carica L.) and denoted Fig cryptic virus (FCV) were cloned and sequenced. Viral dsRNAs are 1696 bp (RNA-1) and 1415 bp (RNA-2) in size. RNA-1 contains a single ORF (1419 nt) potentially encoding a 54 kDa protein and comprising the conserved amino acid motifs of the RNA-dependent RNA polymerase (RdRp) domain of species of the genus Alphacryptovirus. Its full-length amino acid sequence has the highest identity with Raphanus sativus cryptic virus 2 (RsCV-2) (36%), Beet cryptic virus 3 (BCV-3) (36%) and Fragaria chiloensis cryptic virus (FCCV) (34%). RNA-2 has also a single ORF (1014 nt) coding for a polypeptide with a predicted molecular mass of 38 kDa, identified as the viral coat protein (CP). In a phylogenetic tree constructed with the amino acid sequences of the RdRp domain, FCV clusters in a clade comprising BCV-3 and a number of tentative species of the genus Alphacryptovirus. FCV is not mechanically transmissible. It was detected in fig orchards of six Mediterranean countries (Albania, Algeria, Italy, Lebanon, Syria and Tunisia) where it does not seem to induce a visible disease.
journal_name
Virus Genesjournal_title
Virus genesauthors
Elbeaino T,Kubaa RA,Digiaro M,Minafra A,Martelli GPdoi
10.1007/s11262-011-0581-0subject
Has Abstractpub_date
2011-06-01 00:00:00pages
415-21issue
3eissn
0920-8569issn
1572-994Xjournal_volume
42pub_type
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