Irwin D M
Department of Clinical Biochemistry, University of Toronto, Ontario, Canada.
Curr Biol. 1994 Dec 1;4(12):1115-7. doi: 10.1016/s0960-9822(00)00250-5.
Phylogenetic analysis of heat shock protein 70 sequences suggests that the eukaryotic nuclear genome may be a hybrid, originating from the fusion of distinct prokaryotic cells.