Gene organization deduced from the complete sequence of liverwort Marchantia polymorpha mitochondrial DNA

Oda, Kazuhiro; Yamato, Katsuyuki T.; Ohta, Eiji; Nakamura, Yasukazu; Takemura, Masashi; Nozato, Naoko; Akashi, Kinya; Kanegae, Takeshi; Ogura, Yutaka; Kohchi, Takayuki; Ohyama, Kanji

doi:10.1016/0022-2836(92)90708-r

Cited by 565 publications

(286 citation statements)

References 46 publications

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“…4C): a stretch of 16 amino acid residues is identical with a sequence of the 49-kD subunit of the bovine mitochondrial complex I. Moreover, the 42-kD subunit is quite homologous (17 identical residues of 25) to the putative product of the mitochondrial NAD 7 pseudogene from Marchantia polymorpha (Oda et al, 1992) and also to open reading frames 392 and 393 of the M. polymorpha and Nicotiana tabacum chloroplast genomes, respectively . ... ATSMAPASQPSTPPKS ...…”

Section: Chromatography On Hydroxylapatitementioning

confidence: 98%

Purification and Preliminary Characterization of Mitochondrial Complex I (NADH:Ubiquinone Reductase) from Broad Bean (Vicia faba L.)

Leterme

Boutry

1993

Plant Physiol.

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Section: Chromatography On Hydroxylapatitementioning

confidence: 98%

Purification and Preliminary Characterization of Mitochondrial Complex I (NADH:Ubiquinone Reductase) from Broad Bean (Vicia faba L.)

Leterme

Boutry

1993

Plant Physiol.

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“…Furthermore, conservation of the five linked sites in the mtSSU, GTGTG in gymnosperms-Amborella-Nymphaeaceae ( fig. 5) actually extends to Adiantum, Huperzia, and Lycopodium (Duff and Nickrent 1999) and possibly throughout all nonflowering land plants (Oda et al 1992;Duff and Nickrent 1999;Parkinson et al 1999;Chaw et al 2000). Moreover, 28 of 47 sites that contain synapomorphic substitutions in the five protein genes are located at the third codon positions.…”

Section: -Protein + 18smentioning

confidence: 99%

Phylogenetic Analyses of Basal Angiosperms Based on Nine Plastid, Mitochondrial, and Nuclear Genes

Qiu¹,

Dombrovska²,

Lee³

et al. 2005

International Journal of Plant Sciences

162

128

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DNA sequences of nine genes (plastid: atpB, matK, and rbcL; mitochondrial: atp1, matR, mtSSU, and mtLSU; nuclear: 18S and 26S rDNAs) from 100 species of basal angiosperms and gymnosperms were analyzed using parsimony, Bayesian, and maximum likelihood methods. All of these analyses support the following consensus of relationships among basal angiosperms. First, Amborella, Nymphaeaceae, and Austrobaileyales are strongly supported as a basal grade in the angiosperm phylogeny, with either Amborella or Amborella and Nymphaeales as sister to all other angiosperms. An examination of nucleotide substitution patterns of all nine genes ruled out any possibility of analytical artifacts because of RNA editing and GC-content bias in placing these taxa at the base of the angiosperm phylogeny. Second, Magnoliales are sister to Laurales and Piperales are sister to Canellales. These four orders together constitute the magnoliid clade. Finally, the relationships among Ceratophyllum, Chloranthaceae, monocots, magnoliids, and eudicots are resolved in different ways in various analyses, mostly with low support. Our study indicates caution in total evidence approaches in that some of the genes employed (e.g., mtSSU, mtLSU, and nuclear 26S rDNA) added signal that conflicted with the other genes in resolving certain parts of the phylogenetic tree.

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“…Hybridization of nad9 cDNA with mitochondrial DNA of a wide range of flowering plant species 1371 has shown that nad9 is present only once in each of these mitochondrial genomes (Nugent, J. M. and Palmer, J. D., personnal communication). The recently sequenced mitochondrial genome of M. polymorpha [3] contains an homologous sequence named orf212. When considering the protein sequence beginning with the second methionine codon, the wheat mitochondrial nad9 shows 95 % similarity with 78% of identical residues with M. polymorpha mitochondria] orf212.…”

Section: Discussionmentioning

confidence: 99%

“…Most of the identified plant mitochondrial genes have counterparts in animal and yeast mitochondrial genomes. However, the recent determination of the Marchantia polymorpha mtDNA sequence [3] has shown that plant mitochondrial genomes contain a number of unidentified open reading frames which may correspond to either nuclear-encoded proteins in animal and fungi or to plant-specific polypeptides.Plant mitochondria seem to express and modulate the genetic information in a relatively complex way. Recently, editing [4-71 and trans-splicing [8-111 of plant mitochondrial mRNA have been described.…”

mentioning

confidence: 99%

Higher plant mitochondria encode an homologue of the nuclear‐encoded 30‐kDa subunit of bovine mitochondrial complex I

Lamattina

González

Gualberto

et al. 1993

European Journal of Biochemistry

144

100

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We describe the structure and expression of a wheat mitochondrial gene, which codes for a subunit of mitochondrial NADH dehydrogenase. The deduced protein sequence has 70% similarity to the 30-kDa subunit of bovine mitochondrial complex I and 65% similarity to the 31-kDa subunit of Neurospora crassa complex I, components of the iron-sulfur-protein fraction, both nuclear-encoded proteins. We named this wheat mitochondrial gene as nad9. The wheat nad9 gene is transcribed in a single mRNA of 0.9 kb that is edited (C-to-U conversions) in 14 positions. Transcript mapping revealed that the first ATG codon is just 20 nucleotides downstream of the mRNA 5' end and that the 3' end is just 23 nucleotides downstream of the nad9 stop codonThe expression of the nad9 gene in plant mitochondria was studied. Polyclonal antibodies prepared against a wheat NAD9 fusion protein specifically recognise the 30-kDa subunit of bovine mitochondrial complex I and a 27.5-kDa protein in the membrane fractions of wheat, maize and common bean mitochondria, whereas the same serum recognizes a 30-kDa protein in the mitochondria of pea, chickpea and lentil.Higher plants contain the larger mitochondrial genomic DNA described up to now, with sizes varying in the range 250-2500 kb (compared with the 16 kb of mammalian mitochondria) [l]. The greater size of plant mitochondrial DNA may be taken as an indication of the presence of additional genes that are not found in the organelles from other species. Indeed, several ribosomal protein genes and the atpA gene coding for the a subunit of the H+-ATPase [2] have been found in plant mitochondrial genomes in contrast with other mitochondrial genomes. Most of the identified plant mitochondrial genes have counterparts in animal and yeast mitochondrial genomes. However, the recent determination of the Marchantia polymorpha mtDNA sequence [3] has shown that plant mitochondrial genomes contain a number of unidentified open reading frames which may correspond to either nuclear-encoded proteins in animal and fungi or to plant-specific polypeptides.Plant mitochondria seem to express and modulate the genetic information in a relatively complex way. Recently, editing [4-71 and trans-splicing [8-111 of plant mitochondrial mRNA have been described. Editing involves all plant mitoCorrespondence to J

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Gene organization deduced from the complete sequence of liverwort Marchantia polymorpha mitochondrial DNA

Cited by 565 publications

References 46 publications

Purification and Preliminary Characterization of Mitochondrial Complex I (NADH:Ubiquinone Reductase) from Broad Bean (Vicia faba L.)

Purification and Preliminary Characterization of Mitochondrial Complex I (NADH:Ubiquinone Reductase) from Broad Bean (Vicia faba L.)

Phylogenetic Analyses of Basal Angiosperms Based on Nine Plastid, Mitochondrial, and Nuclear Genes

Higher plant mitochondria encode an homologue of the nuclear‐encoded 30‐kDa subunit of bovine mitochondrial complex I

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