title: Structure and organization of Marchantia polymorpha chloroplast genome. IV. Inverted repeat and small single copy regions.
abstract: We characterized the genes in the regions of large inverted repeats (IRA and IRB, 10,058 base-pairs each) and a small single copy (SSC 19,813 bp) of chloroplast DNA from Marchantia polymorpha. The inverted repeat (IR) regions contain genes for four ribosomal RNAs (16 S, 23 S, 4.5 S and 5 S rRNAs) and five transfer RNAs (valine tRNA(GAC), isoleucine tRNA(GAU), alanine tRNA(UGC), arginine tRNA(ACG) and asparagine tRNA(GUU)). The gene organization of the IR regions in the liverwort chloroplast genome is conserved, although the IR regions are smaller (10,058 base-pairs) than any reported in higher plant chloroplasts. The small single-copy region (19,813 base-pairs) encoded genes for 17 open reading frames, a leucine tRNA(UAG) and a proline tRNA(GGG)-like sequence. We identified 12 open reading frames by homology of their coding sequences to a 4Fe-4S-type ferredoxin protein, a bacterial nitrogenase reductase component (Fe-protein), five human mitochondrial components of NADH dehydrogenase (ND1, ND4, ND4L, ND5 and ND6), two Escherichia coli ribosomal proteins (S15 and L21), two putative proteins encoded in the kinetoplast maxicircle DNA of Leishmania tarentolae (LtORF 3 and LtORF 4), and a bacterial permease inner membrane component (encoded by malF in E. coli or hisQ in Salmonella typhimurium).
authors.affiliation: Research Centre for Cell and Tissue Culture, Kyoto University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Kohchi
authors.forename: H
authors.initials: H
authors.lastname: Shirai
authors.forename: H
authors.initials: H
authors.lastname: Fukuzawa
authors.forename: T
authors.initials: T
authors.lastname: Sano
authors.forename: T
authors.initials: T
authors.lastname: Komano
authors.forename: K
authors.initials: K
authors.lastname: Umesono
authors.forename: H
authors.initials: H
authors.lastname: Inokuchi
authors.forename: H
authors.initials: H
authors.lastname: Ozeki
authors.forename: K
authors.initials: K
authors.lastname: Ohyama
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D002736:Chloroplasts; D004247:DNA / Q000235:genetics; D015321:Gene Rearrangement; D005796:Genes; D006801:Humans; D007506:Iron-Sulfur Proteins / Q000235:genetics; D008928:Mitochondria; D008969:Molecular Sequence Data; D009245:NADH Dehydrogenase / Q000235:genetics; D010944:Plants / Q000235:genetics*; D012091:Repetitive Sequences, Nucleic Acid; D012269:Ribosomal Proteins / Q000235:genetics
chemical_list: D007506:Iron-Sulfur Proteins; D012269:Ribosomal Proteins; D004247:DNA; D009245:NADH Dehydrogenase