MOLECULAR PHYLOGENY, ULTRASTRUCTURE, AND TAXONOMIC REVISION OF CHLOROGONIUM (CHLOROPHYTA): EMENDATION OF CHLOROGONIUM AND DESCRIPTION OF GUNGNIR GEN. NOV. AND RUSALKA GEN. NOV. 1

@article{Nakada2008MOLECULARPU,
  title={MOLECULAR PHYLOGENY, ULTRASTRUCTURE, AND TAXONOMIC REVISION OF CHLOROGONIUM (CHLOROPHYTA): EMENDATION OF CHLOROGONIUM AND DESCRIPTION OF GUNGNIR GEN. NOV. AND RUSALKA GEN. NOV. 1},
  author={Takashi Nakada and Hisayoshi Nozaki and Thomas Pr{\"o}schold},
  journal={Journal of Phycology},
  year={2008},
  volume={44}
}
We examined the molecular phylogeny and ultrastructure of Chlorogonium and related species to establish the natural taxonomy at the generic level. Phylogenetic analyses of 18S rRNA and RUBISCO LSU (rbcL) gene sequences revealed two separate clades of Chlorogonium from which Chlorogonium (Cg.) fusiforme Matv. was robustly separated. One clade comprised Cg. neglectum Pascher and Cg. kasakii Nozaki, whereas the other clade included the type species Cg. euchlorum (Ehrenb.) Ehrenb., Cg. elongatum (P… 

Chlorogonium complexum sp. nov. (Volvocales, Chlorophyceae), and morphological evolution of Chlorogonium

We isolated strains of a new species of Chlorogonium (Cg.), Cg. complexum Nakada sp. nov. The genus Chlorogonium was recently emended to have several, irregularly distributed contractile vacuoles,

TAXONOMIC STUDY OF TWO NEW GENERA OF FUSIFORM GREEN FLAGELLATES, TABRIS GEN. NOV. AND HAMAKKO GEN. NOV. (VOLVOCALES, CHLOROPHYCEAE) 1

On the basis of LM, we isolated strains of two species of fusiform green flagellates that could be assigned to former Chlorogonium (Cg.) Ehrenb. One species, “Cg.”heimii Bourr., lacked a pyrenoid in

A taxonomic revision of Chloromonas reticulata (Volvocales, Chlorophyceae), the type species of the genus Chloromonas, based on multigene phylogeny and comparative light and electron microscopy

The taxonomic revision of Chloromonas reticulata was supported by the robust monophyly of the species resolved in phylogenetic analyses using a combined dataset that included 18S ribosomal RNA, ATP synthase β-subunit, P700 chlorophyll a-apoprotein A1 and A2 genes, and nuclear rDNA internal transcribed spacer 2 (ITS2) sequences.

UPDATING THE GENUS DICTYOSPHAERIUM AND DESCRIPTION OF MUCIDOSPHAERIUM GEN. NOV. (TREBOUXIOPHYCEAE) BASED ON MORPHOLOGICAL AND MOLECULAR DATA 1

The phylogenetic analyses revealed two lineages without generic assignment and two distinct clades of Dictyosphaerium‐like strains within the Parachlorella clade, and an emendation of the genus D dictyosphalerium is proposed.

EVOLUTIONARY ORIGIN OF GLOEOMONAS (VOLVOCALES, CHLOROPHYCEAE), BASED ON ULTRASTRUCTURE OF CHLOROPLASTS AND MOLECULAR PHYLOGENY 1

It is demonstrated that the chloroplasts of the three Gloeomonas species and C. rubrifilum SAG 3.85 did not have typical pyrenoids with associated starch grains, but they possessed pyrenoid matrices that protruded interiorly within the stroma regions of the chloroplast.

Chlamydomonas neoplanoconvexa nom. nov. and its unique phylogenetic position within Volvocales (Chlorophyceae)

A newly isolated strain of Chlamydomonas neoplanoconvexa was examined and shown to be sister to Chlorogonium Ehrenb, and its unique phylogenetic position will encourage further investigation of this species and its uncultivated relatives.

Taxonomic re-examination of “Chloromonas nivalis (Volvocales, Chlorophyceae) zygotes” from Japan and description of C. muramotoi sp. nov.

The molecular data demonstrated that these two different life cycle stages are conspecific, and that they represent a new species that is described as C. muramotoi sp.

Taxonomic revision of Chloromonas nivalis (Volvocales, Chlorophyceae) strains, with the new description of two snow-inhabiting Chloromonas species

It is demonstrated that species identification of snow-inhabiting Chloromonas species is possible based on light and electron microscopy of asexual life cycles in strains and molecular phylogenetic analyses and phylogenetically separated specimens previously identified as C. nivalis based on zygote morphology.

Phylogenetic interpretation of light and electron microscopic features of selected members of the phylogroup Moewusinia (Chlorophyceae), with new generic taxonomy

A phylogenetic framework to examine the evolution of light microscopic and transmission electron microscopic features in the phylogroup Moewusinia and a related genus and assessed the features that could be used to diagnose lineages found papillar shape, cell wall layers, nuclear position and components of the basal apparatus were generally consistent with clades.

Taxonomic re-examination of two NIES strains of “ Chlamydomonas ” within the Reticulata group of the genus Chloromonas ( Volvocales , Chlorophyceae )

The Reticulata group of the genus Chloromonas includes the following three additional “Chlamydomonas” strains deposited in the Microbial Culture Collection at the National Institute for Environmental Studies (MCCNIES) (Kawachi et al., 2013; http://mcc.go.jp/ index_en.html).

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