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Molecular phylogeny and classification of the Mamiellophyceae class. nov. (Chlorophyta) based on sequence comparisons of the nuclear- and plastid-encoded rRNA operons.
The study resolved all major clades within the Mamiellophyceae, identified molecular signature sequences for most clades through an exhaustive search for non-homoplasious synapomorphies and incorporated these signatures into the diagnoses of two novel orders. Expand
Phylogeny and taxonomic revision of plastid-containing euglenophytes based on SSU rDNA sequence comparisons and synapomorphic signatures in the SSU rRNA secondary structure.
Sequence comparisons and a revised classification of the Euglenophyceae were based on 92 new SSU rDNA sequences obtained from strains of Euglena, Astasia, Phacus, Trachelomonas, Colacium, Cryptoglena, Lepocinclis, EUTreptia, Eutreptiella and TetreutrePTia, and one lineage was recognized as the previously neglected genus Monomorphina Mereschkowsky (1877). Expand
Molecular phylogeny and taxonomic revision of Chlamydomonas (Chlorophyta). I. Emendation of Chlamydomonas Ehrenberg and Chloromonas Gobi, and description of Oogamochlamys gen. nov. and Lobochlamys
The polyphyletic Chloromonas (traditionally defined as "Chlamydomonas without pyrenoids") can be legitimized as a monophyletic genus by restriction to this clade and is here emended on the basis of chloroplast characters. Expand
Streptophyte algae and the origin of embryophytes.
The Streptophyta/Chlorophyta divergence correlates with a remarkably conservative preference for freshwater/marine habitats, and the early freshwater adaptation of streptophyte algae was a major advantage for the earliest land plants, even before the origin of the embryo and the sporophyte generation. Expand
A plastid in the making: evidence for a second primary endosymbiosis.
One of the major steps in the evolution of life was the origin of photosynthesis in nucleated cells underpinning the evolution of plants. It is well accepted that this evolutionary process wasExpand
Mesostigmatophyceae, a new class of streptophyte green algae revealed by SSU rRNA sequence comparisons.
These analyses demonstrate that scaly green flagellates (prasinophytes) are polyphyletic, and the phylogenetic relationships between the Mesostigmatophyceae and other streptophyte green algae remain unresolved by SSU rRNA sequence comparisons. Expand
The Basal Position of Scaly Green Flagellates among the Green Algae (Chlorophyta) is Revealed by Analyses of Nuclear-Encoded SSU rRNA Sequences.
These analyses provide further evidence for the basal phylogenetic position of the scaly green flagellates among the Chlorophyta and raise important questions concerning the class-level classification of the Ch chlorophyta. Expand
Are combined analyses better than single gene phylogenies? A case study using SSU rDNA and rbcL sequence comparisons in the Zygnematophyceae (Streptophyta).
Combined analyses confidently resolved the conflicts between the single-gene analyses, enhanced phylogenetic resolution, and were better supported by morphological information. Expand
A close-up view on ITS2 evolution and speciation - a case study in the Ulvophyceae (Chlorophyta, Viridiplantae)
A suite of methods providing a critical 'close-up' view into ITS2 evolution by directly tracing the evolutionary history of individual positions are developed and are cautioned against a non-critical use of the ITS2 CBC clade concept for species delimitation. Expand
Phylogenetic Relationships among the Cryptophyta: Analyses of Nuclear-Encoded SSU rRNA Sequences Support the Monophyly of Extant Plastid-Containing Lineages.
The phylogenetic analysis does not support a previous suggestion that the aplastidial cryptophyte Goniomonas evolved from an ancestor containing a complex cryptomonadtype plastid by nucleomorph and plastids loss, and rejects this character for higher-level classification of cryptophytes. Expand