@article{Yamada2017Ident-39522,
  year={2017},
  doi={10.1093/molbev/msx054},
  title={Identification of Highly Divergent Diatom-Derived Chloroplasts in Dinoflagellates, Including a Description of Durinskia kwazulunatalensis sp. nov. (Peridiniales, Dinophyceae)},
  number={6},
  volume={34},
  issn={0737-4038},
  journal={Molecular Biology and Evolution},
  pages={1335--1351},
  author={Yamada, Norico and Sym, Stuart D. and Horiguchi, Takeo}
}

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    <dc:contributor>Horiguchi, Takeo</dc:contributor>
    <dc:contributor>Sym, Stuart D.</dc:contributor>
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    <dc:creator>Yamada, Norico</dc:creator>
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    <dc:creator>Horiguchi, Takeo</dc:creator>
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    <dcterms:title>Identification of Highly Divergent Diatom-Derived Chloroplasts in Dinoflagellates, Including a Description of Durinskia kwazulunatalensis sp. nov. (Peridiniales, Dinophyceae)</dcterms:title>
    <dcterms:abstract xml:lang="eng">Dinoflagellates are known to possess chloroplasts of multiple origins derived from a red alga, a green alga, haptophytes, or diatoms. The monophyletic "dinotoms" harbor a chloroplast of diatom origin, but their chloroplasts are polyphyletic belonging to one of four genera: Chaetoceros, Cyclotella, Discostella, or Nitzschia. It has been speculated that serial replacement of diatom-derived chloroplasts by other diatoms has caused this diversity of chloroplasts. Although previous work suggested that the endosymbionts of Nitzschia origin might not be monophyletic, this has not been seriously investigated. To infer the number of replacements of diatom-derived chloroplasts in dinotoms, we analyzed the phylogenetic affinities of 14 species of dinotoms based on the endosymbiotic rbcL gene and SSU rDNA, and the host SSU rDNA. Resultant phylogenetic trees revealed that six species of Nitzschia were taken up by eight marine dinoflagellate species. Our phylogenies also indicate that four separate diatom species belonging to three genera were incorporated into the five freshwater dinotoms. Particular attention was paid to two crucially closely related species, Durinskia capensis and a novel species, D. kwazulunatalensis, because they possess distantly related Nitzschia species. This study clarified that any of a total of at least 11 diatom species in five genera are employed as an endosymbiont by 14 dinotoms, which infers a more frequent replacement of endosymbionts in the world of dinotoms than previously envisaged.</dcterms:abstract>
    <dc:contributor>Yamada, Norico</dc:contributor>
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    <dc:creator>Sym, Stuart D.</dc:creator>
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