An ancestral mitochondrial DNA resembling a eubacterial genome in miniature
Feature of gene content together with eubacterial characteristics of genome organization and expression not found before in mitochondrial genomes indicate that R. americana mtDNA more closely resembles the ancestral proto-mitochondrial genome than any other mtDNA investigated to date.
Ancestral chloroplast genome in Mesostigma viride reveals an early branch of green plant evolution
The structure and gene organization of this genome indicate that chloroplast DNA architecture has been extremely well conserved in the line leading to land plants.
The chloroplast ycf3 and ycf4 open reading frames of Chlamydomonas reinhardtii are required for the accumulation of the photosystem I complex
- E. Boudreau, Yuichiro Takahashi, C. Lemieux, M. Turmel, J. Rochaix
- Biology, Environmental ScienceEMBO Journal
- 15 October 1997
RNA blot hybridizations showed that transcripts of psaA, psaB and psaC accumulate normally in these mutants and use of chimeric reporter genes revealed that Ycf3 is not required for initiation of translation of pSAA and pSAB mRNA.
The complete chloroplast DNA sequence of the green alga Nephroselmis olivacea: insights into the architecture of ancestral chloroplast genomes.
The complete chloroplast DNA sequence of Nephroselmis olivacea, a member of the class (Prasinophyceae) thought to include descendants of the earliest-diverging green algae, is determined and phylogenetic analyses offer insight into the chlorophyte ancestor of euglenophyte chloroplasts.
The chloroplast and mitochondrial genome sequences of the charophyte Chaetosphaeridium globosum: Insights into the timing of the events that restructured organelle DNAs within the green algal lineage…
The finding that the charophyte Chaetosphaeridium cpDNA shares only one intron with its land-plant counterparts supports the idea that the vast majority of mitochondrial introns in land plants appeared after the emergence of these organisms.
The chloroplast genomes of the green algae Pyramimonas, Monomastix, and Pycnococcus shed new light on the evolutionary history of prasinophytes and the origin of the secondary chloroplasts of…
- M. Turmel, M. Gagnon, C. O'kelly, C. Otis, C. Lemieux
- BiologyMolecular biology and evolution
- 1 March 2009
It is revealed that major reduction in gene content and restructuring of the chloroplast genome occurred in conjunction with important changes in cell organization in at least two independent prasinophyte lineages, the Mamiellales and the Pycnococcaceae.
Genome structure and gene content in protist mitochondrial DNAs.
A review of protist mtDNA sequences determined to date comments on such aspects as mitochondrial genome structure, gene content, ribosomal RNA, introns, transfer RNAs and the genetic code and phylogenetic implications, and illustrates the utility of a comparative genomics approach to gene identification.
The complete mitochondrial DNA sequence of Mesostigma viride identifies this green alga as the earliest green plant divergence and predicts a highly compact mitochondrial genome in the ancestor of…
The few structural features that can be regarded as ancestral in Mesostigma mtDNA predict that the common ancestor of all green plants had a compact mtDNA containing a minimum of 75 genes and perhaps two group I introns.
The chloroplast genome sequence of the green alga Pseudendoclonium akinetum (Ulvophyceae) reveals unusual structural features and new insights into the branching order of chlorophyte lineages.
- Jean-François Pombert, C. Otis, C. Lemieux, M. Turmel
- BiologyMolecular biology and evolution
- 1 September 2005
Phylogenetic analyses of 58 cpDNA-encoded proteins and genes support the hypothesis that the Ulvophyceae is sister to the Trebouxiophyeae but cannot eliminate the hypothesis That the ULVophycee is sisters to the Chlorophycees.
The Complete Mitochondrial DNA Sequences of Nephroselmis olivacea and Pedinomonas minor: Two Radically Different Evolutionary Patterns within Green Algae
The sequenced mitochondrial DNAs of Nephroselmis olivacea and Pedinomonas minor confirm the existence of two radically different patterns of mitochondrial genome evolution within the green algae.