Multiple Barriers to the Evolution of Alternative Gene Orders in a Positive-Strand RNA Virus.

Abstract excerpt

The order in which genes are organized within a genome is generally not conserved between distantly related species. However, within virus orders and families, strong conservation of gene order is observed. The factors that constrain or promote gene-order diversity are largely unknown, although the regulation of gene expression is one important constraint for viruses. Here we investigate why gene order is...

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