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1.  Expanding networks of RNA virus evolution 
BMC Biology  2012;10:54.
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
doi:10.1186/1741-7007-10-54
PMCID: PMC3379944  PMID: 22715894

Results 1-1 (1)