Our new study published in the Genome Biology and
Evolution shows that evolutionary age of protein-coding genes
in human and chimp determines the rate of mutation accumulation, as
well as the fitness effect of mutations. Collectively our results
provide strong evidence that younger genes are subject to weaker
purifying selection and more tenuous evidence that they also
undergo adaptive evolution more frequently. For details visit http://gbe.oxfordjournals.org/cgi/content/abstract/evq019.
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