Ancestral Genomes: a resource for reconstructed ancestral genes and genomes across the tree of life

<p>For each ancestral gene, we assign a stable identifier, and provide additional information designed to facilitate analysis: an inferred name (based on its descendants in extant genomes), a reconstructed protein sequence, a set of inferred Gene Ontology (GO) annotations, and a &ldquo;proxy gene&rdquo; for each ancestral gene, defined as the least-diverged descendant of the ancestral gene in a given extant genome.</p>