Figure 1From: Phylogenetic patterns of emergence of new genes support a model of frequent de novoevolutionPhylostratigraphy of the mouse genome. Each phylostratum corresponds to a node in the phylogenetic tree of the species. Representative outgroups are named under each node. The bar graph to the right represents the number of annotated protein-coding genes mapped to the respective phylostratum at a blastp threshold of e < 10-3.Back to article page