| Literature DB >> 16537638 |
Eri Nobusawa1, Katsuhiko Sato.
Abstract
Human influenza A viruses evolve more rapidly than influenza B viruses. To clarify the cause of this difference, we have evaluated the mutation rate of the nonstructural gene as revealed by the genetic diversity observed during the growth of individual plaques in MDCK cells. Six plaques were studied, representing two strains each of type A and B viruses. A total of 813,663 nucleotides were sequenced, giving rates of 2.0 x 10(-6) and 0.6 x 10(-6) mutations per site per infectious cycle, which, when extended to 1 year, agree well with the published annual evolutionary rates.Entities:
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Year: 2006 PMID: 16537638 PMCID: PMC1440390 DOI: 10.1128/JVI.80.7.3675-3678.2006
Source DB: PubMed Journal: J Virol ISSN: 0022-538X Impact factor: 5.103