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PubMed
36366554
DOI
10.3390/v14112456
Knihovny.cz E-zdroje
A virome screen was performed on a new breeding line, KB1, of blackcurrant. Rhabdovirus-like particles were observed by electron microscopy in ultrathin sections of flower stalks, and the complete genome sequence of a novel virus, provisionally named blackcurrant rhabdovirus 2 (BCRV2), was determined and verified using high-throughput sequencing. The genomic organization of BCRV2 was characteristic of cytorhabdoviruses (family Rhabdoviridae) and included seven genes: 3 ́- N-P ́-P-P3-M-G-L -5 ́. BLASTP analysis revealed that the putative L protein had the highest amino acid sequence identity (75 %) with strawberry virus 2. BCRV2 was detected in Cryptomyzusgaleopsidis, but efficient transmission by this aphid was not confirmed. Of note, we observed coinfection of the KB1 line with blackcurrant-associated rhabdovirus (BCaRV) by RT-PCR. This is likely the first evidence of the presence of a cyto- and a nucleorhabdovirus in a single host.
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