Stabilizing and splitting selections in the evolution of the Parvoviridae and Astroviridae families


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Abstract

We had previously collected and analyzed, by phylogenetic methods, all genetic data available now for the Parvoviridae and Astroviridae families, which made it possible to define the evolutionary relations between the viruses as well as to depict a variety of events in the evolutionary history of the two families. The offered case study is dedicated to investigating the stabilizing and splitting selection types in the evolution of the discussed viral families. We analyzed the number of synonymous and non-synonymous nucleotide substitutions in the coding genomes' regions of the viruses. Finally, the stabilizing selection was shown to be a key factor in the evolution of parvoviruses and astroviruses.

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Copyright (c) 2004 Lukashyov V.V., Goudsmit J.

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