Patrick John Keeling is a biologist and professor in the Department of Botany at the University of British Columbia. His research investigates the phylogeny, genomics and molecular evolution of protists and his work has led to numerous advances in assembling the eukaryotic tree of life. He has also identified several cases of horizontal gene transfer. References Protistologists Evolutionary biologists Canadian molecular biologists University of British Columbia faculty Living people Fellows of the American Association for the Advancement of Science 1969 births