Dataset Information

Phylogenomics Places Orphan Protistan Lineages in a Novel Eukaryotic Super-Group.

ABSTRACT: Recent phylogenetic analyses position certain "orphan" protist lineages deep in the tree of eukaryotic life, but their exact placements are poorly resolved. We conducted phylogenomic analyses that incorporate deeply sequenced transcriptomes from representatives of collodictyonids (diphylleids), rigifilids, Mantamonas, and ancyromonads (planomonads). Analyses of 351 genes, using site-heterogeneous mixture models, strongly support a novel super-group-level clade that includes collodictyonids, rigifilids, and Mantamonas, which we name "CRuMs". Further, they robustly place CRuMs as the closest branch to Amorphea (including animals and fungi). Ancyromonads are strongly inferred to be more distantly related to Amorphea than are CRuMs. They emerge either as sister to malawimonads, or as a separate deeper branch. CRuMs and ancyromonads represent two distinct major groups that branch deeply on the lineage that includes animals, near the most commonly inferred root of the eukaryote tree. This makes both groups crucial in examinations of the deepest-level history of extant eukaryotes.

SUBMITTER: Brown MW

PROVIDER: S-EPMC5793813 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

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Phylogenomics Places Orphan Protistan Lineages in a Novel Eukaryotic Super-Group.

Brown Matthew W MW Heiss Aaron A AA Kamikawa Ryoma R Inagaki Yuji Y Yabuki Akinori A Tice Alexander K AK Shiratori Takashi T Ishida Ken-Ichiro KI Hashimoto Tetsuo T Simpson Alastair G B AGB Roger Andrew J AJ

Genome biology and evolution 20180201 2

Recent phylogenetic analyses position certain "orphan" protist lineages deep in the tree of eukaryotic life, but their exact placements are poorly resolved. We conducted phylogenomic analyses that incorporate deeply sequenced transcriptomes from representatives of collodictyonids (diphylleids), rigifilids, Mantamonas, and ancyromonads (planomonads). Analyses of 351 genes, using site-heterogeneous mixture models, strongly support a novel super-group-level clade that includes collodictyonids, rigi ...[more]

PMID: 29360967

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Phylogenomics Places Orphan Protistan Lineages in a Novel Eukaryotic Super-Group.

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Phylogenomics Places Orphan Protistan Lineages in a Novel Eukaryotic Super-Group.

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