On the nature of gene innovation: duplication patterns in microbial genomes.

Abstract excerpt

Gene duplication is considered a major force in gene family expansion and gene innovation. As gene copies assume novel functions, they must avoid periods of neutrality or be deleted from the genome. Current opinions state that copies avoid neutrality through gene dosage effects. These copies are therefore selected from an early stage. This study concentrates on the flow of copies from recent duplication to gene...

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