As techniques to sequence and map genomes and chromosomes improve, we should be able to learn more about our evolutionary history and what the genomes of our ancestors might have looked like. Three studies illustrate the potential of these approaches, comparing the genomes of 15 primate species with those of species from four non-primate orders to try and work out which are the ancestral mammalian genes.
- Stephen J. O'Brien
- Roscoe Stanyon