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BMC Biol. 2012; 10: 54.
Published online 2012 June 20. doi:  10.1186/1741-7007-10-54
PMCID: PMC3379944

Expanding networks of RNA virus evolution

Abstract

In a recent BMC Evolutionary Biology article, Huiquan Liu and colleagues report two new genomes of double-stranded RNA (dsRNA) viruses from fungi and use these as a springboard to perform an extensive phylogenomic analysis of dsRNA viruses. The results support the old scenario of polyphyletic origin of dsRNA viruses from different groups of positive-strand RNA viruses and additionally reveal extensive horizontal gene transfer between diverse viruses consistent with the network-like rather than tree-like mode of viral evolution. Together with the unexpected discoveries of the first putative archaeal RNA virus and a RNA-DNA virus hybrid, this work shows that RNA viral genomics has major surprises to deliver.

See research article: http://www.biomedcentral.com/1471-2148/12/91


Articles from BMC Biology are provided here courtesy of BioMed Central