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Phylogenomics supports the monophyly of the Cercozoa
Univ British Columbia, Dept Bot, Vancouver, BC V6T 1Z4, Canada.ORCID iD: 0000-0002-2904-8214
Univ British Columbia, Dept Bot, Vancouver, BC V6T 1Z4, Canada;Russian Acad Sci, Inst Biol Inland Waters, Borok 152742, Russia.ORCID iD: 0000-0002-4882-2148
Univ British Columbia, Dept Bot, Vancouver, BC V6T 1Z4, Canada;Monterey Bay Aquarium Res Inst, Moss Landing, CA USA.ORCID iD: 0000-0001-7810-1336
Russian Acad Sci, Inst Biol Inland Waters, Borok 152742, Russia.
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2019 (English)In: Molecular Phylogenetics and Evolution, ISSN 1055-7903, E-ISSN 1095-9513, Vol. 130, p. 416-423Article in journal (Refereed) Published
Abstract [en]

The phylum Cercozoa consists of a diverse assemblage of amoeboid and flagellated protists that forms a major component of the supergroup, Rhizaria. However, despite its size and ubiquity, the phylogeny of the Cercozoa remains unclear as morphological variability between cercozoan species and ambiguity in molecular analyses, including phylogenomic approaches, have produced ambiguous results and raised doubts about the monophyly of the group. Here we sought to resolve these ambiguities using a 161-gene phylogenetic dataset with data from newly available genomes and deeply sequenced transcriptomes, including three new transcriptomes from Aurigamonas soils, Abollifer prolabens, and a novel species, Lapot gusevi n. gen. n. sp. Our phylogenomic analysis strongly supported a monophyletic Cercozoa, and approximately-unbiased tests rejected the paraphyletic topologies observed in previous studies. The transcriptome of L. gusevi represents the first transcriptomic data from the large and recently characterized Aquavolonidae-Treumulida-'Novel Clade 12' group, and phylogenomics supported its position as sister to the cercozoan subphylum, Endomyxa. These results provide insights into the phylogeny of the Cercozoa and the Rhizaria as a whole.

Place, publisher, year, edition, pages
2019. Vol. 130, p. 416-423
Keywords [en]
Cercozoa, Rhizaria, Phylogeny, Phylogenomics, Single-cell transcriptomics
National Category
Biological Systematics
Identifiers
URN: urn:nbn:se:uu:diva-374118DOI: 10.1016/j.ympev.2018.09.004ISI: 000452963200037PubMedID: 30318266OAI: oai:DiVA.org:uu-374118DiVA, id: diva2:1281987
Available from: 2019-01-23 Created: 2019-01-23 Last updated: 2019-01-23Bibliographically approved

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Burki, Fabien

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Irwin, NicholasTikhonenkov, DenisHehenberger, ElisabethBurki, Fabien
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