title: Ancient and recent horizontal transfer events: the origins of mitochondria.
authors.affiliation: Department of Molecular Biology, Uppsala University, Sweden.
authors.forename: S G
authors.initials: SG
authors.lastname: Andersson
authors.forename: C G
authors.initials: CG
authors.lastname: Kurland
mesh_terms: D019143:Evolution, Molecular; D016680:Genome, Bacterial; D008928:Mitochondria / Q000235:genetics*; D011995:Recombination, Genetic; D012283:Rickettsia prowazekii / Q000235:genetics*; D014170:Transformation, Genetic