1887

Abstract

Blueberry scorch carlavirus (BBScV) is a filamentous virus with a polyadenylated, positive-sense RNA genome. A near full-length cDNA clone of BBScV was constructed by assembly of clones from a cDNA library. To generate a full-length cDNA clone, the 5′ terminus was mutagenized by PCR to introduce nucleotides present in the wild-type virus and not in the near full-length clone, and then fused directly to the T7 bacteriophage RNA polymerase promoter at the 5′ terminus. Capped and uncapped BBScV transcripts were synthesized from the full-length cDNA clone. Capped transcripts were infectious, producing systemic symptoms identical to those caused by the wild-type virus following inoculation onto leaves. Uncapped transcripts were substantially less infectious than capped transcripts. This represents the first report of infectious transcripts for a member of the carlavirus group.

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/content/journal/jgv/10.1099/0022-1317-75-9-2509
1994-09-01
2019-11-17
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http://instance.metastore.ingenta.com/content/journal/jgv/10.1099/0022-1317-75-9-2509
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