Journal
PROTIST
Volume 170, Issue 5, Pages -Publisher
ELSEVIER GMBH
DOI: 10.1016/j.protis.2019.125682
Keywords
Stramenopiles; evolution; phylogeny; transcriptome data; MAST
Categories
Funding
- JSPS KAKENHI [13J00587, 23405013]
- fund of National Bioresource Project [15Km0210030
- 0004]
- Grants-in-Aid for Scientific Research [23405013, 13J00587] Funding Source: KAKEN
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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, Pseudophyl-lomitus 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. (C) 2019 Elsevier GmbH. All rights reserved.
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