title: Origins of the plant chloroplasts and mitochondria based on comparisons of 5S ribosomal RNAs.
abstract: In this paper, we provide macromolecular comparisons utilizing the 5S ribosomal RNA structure to suggest extant bacteria that are the likely descendants of chloroplast and mitochondria endosymbionts.  The genetic stability and near universality of the 5S ribosomal gene allows for a useful means to study ancient evolutionary changes by macromolecular comparisons.  The value in current and future ribosomal RNA comparisons is in fine tuning the assignment of ancestors to the organelles and in establishing extant species likely to be descendants of bacteria involved in presumed multiple endosymbiotic events.
authors.affiliation: Department of Microbiology, State University of New York at Stony Brook 11794, USA.
authors.forename: N
authors.initials: N
authors.lastname: Delihas
authors.forename: G E
authors.initials: GE
authors.lastname: Fox
mesh_terms: D000818:Animals; D001419:Bacteria; D005075:Biological Evolution; D000458:Cyanobacteria; D005056:Euglena gracilis; D008928:Mitochondria / Q000235:genetics* / Q000502:physiology; D010944:Plants / Q000235:genetics* / Q000648:ultrastructure; D012329:RNA, Bacterial; D018747:RNA, Chloroplast; D018749:RNA, Plant; D016053:RNA, Protozoan; D012341:RNA, Ribosomal, 5S / Q000145:classification / Q000235:genetics* / Q000502:physiology; D017423:Sequence Analysis, RNA; D012689:Sequence Homology, Nucleic Acid; D013559:Symbiosis; D014908:Triticum
chemical_list: D012329:RNA, Bacterial; D018747:RNA, Chloroplast; D018749:RNA, Plant; D016053:RNA, Protozoan; D012341:RNA, Ribosomal, 5S