1887

Abstract

The genome of Cucumber yellows virus (CuYV), isolated in Japan from cucumber ( L.), was completely sequenced and shown to be bipartite. CuYV RNA1 consisted of 7889 nucleotides and encompassed seven open reading frames (ORFs), which is typical of the , including a heat-shock protein 70 homologue, a coat protein and a diverged coat protein (CPd). CuYV RNA2 consisted of 7607 nucleotides and included two ORFs: ORF1a potentially encoded a polyprotein containing putative papain-like protease, methyltransferase and helicase domains, and ORF 1b potentially encoded an RNA-dependent RNA polymerase, which is probably expressed via a +1 ribosomal frameshift. The size and organization of the CuYV genome are similar to those of (LIYV), the type member of the genus in the family , indicating that CuYV is a member of that genus, although CuYV differed in several points from LIYV.

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2003-04-01
2020-01-25
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