title: An aberrant plastid ribosomal RNA gene cluster in the root parasite Conopholis americana.
abstract: The plastid ribisomal RNA (rRNA) operon of the achlorophyllous root parasite Conopholis americana was completely sequenced. Full-length rRNA genes are retained in the gene cluster, but significant divergence has occurred in the 16S, 23S and 5S genes. Both the 16S-23S intergenic spacer and the 4.5S-5S intergenic spacer have suffered substantial deletions, including the two tRNA genes typically found in prokaryotic and plastid 16S-23S spacers.
authors.affiliation: Department of Biological Sciences, University of Wisconsin-Milwaukee 53201.
authors.forename: C F
authors.initials: CF
authors.lastname: Wimpee
authors.forename: R
authors.initials: R
authors.lastname: Morgan
authors.forename: R
authors.initials: R
authors.lastname: Wrobel
mesh_terms: D001482:Base Composition; D001483:Base Sequence; D005075:Biological Evolution; D002736:Chloroplasts; D008969:Molecular Sequence Data; D005810:Multigene Family / Q000235:genetics*; D009154:Mutation / Q000235:genetics; D009690:Nucleic Acid Conformation; D009876:Operon / Q000235:genetics; D010802:Phylogeny; D010944:Plants / Q000235:genetics*; D012335:RNA, Ribosomal / Q000235:genetics*; D012344:RNA, Transfer, Ala / Q000235:genetics; D012355:RNA, Transfer, Ile / Q000235:genetics; D016415:Sequence Alignment
chemical_list: D012335:RNA, Ribosomal; D012344:RNA, Transfer, Ala; D012355:RNA, Transfer, Ile