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Taxon-rich Multigene Phylogenetic Analyses Resolve the Phylogenetic Relationship Among Deep-branching Stramenopiles.

著者 Thakur R , Shiratori T , Ishida KI
Protist.2019 Sep 05 ; 170(5):125682.
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Stramenopiles are one of the major eukaryotic assemblages. This group comprises a wide range of species including photosynthetic unicellular and multicellular algae, fungus-like osmotrophic organisms and many free-living phagotrophic flagellates. However, the phylogeny of the Stramenopiles, especially relationships among deep-branching heterotrophs, has not yet been resolved because of a lack of adequate transcriptomic data for representative lineages. In this study, we performed multigene phylogenetic analyses of deep-branching Stramenopiles with improved taxon sampling. We sequenced transcriptomes of three deep-branching Stramenopiles: Incisomonas marina, Pseudophyllomitus vesiculosus and Platysulcus tardus. Phylogenetic analyses using 120 protein-coding genes and 56 taxa indicated that Pl. tardus is sister to all other Stramenopiles while Ps. vesiculosus is sister to MAST-4 and form a robust clade with the Labyrinthulea. The resolved phylogenetic relationships of deep-branching Stramenopiles provide insights into the ancestral traits of the Stramenopiles.
PMID: 31568885 [PubMed - as supplied by publisher]
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