Our work is on the molecular evolution of protists, or single celled eukaryotes. Protists comprise the vast majority of eukaryotic diversity, but we know comparatively little about their biology or evolutionary history. We are using molecular methods to look at various protist groups to see how they evolved and what they tell us about eukaryotic evolution in general. Our main interests are in using molecules to reconstruct evolutionary relationships, examining how parasites evolve and infect their hosts, and studying how the origin of organelles by endosymbiosis affected the host cells.