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Tilic, Ekin; Stiller, Josefin; Campos, Ernesto; Pleijel, Fredrik; Rouse, Greg W. (2021). Phylogenomics resolves ambiguous relationships within Aciculata (Errantia, Annelida). Molecular Phylogenetics and Evolution. efirst 166: 107339.
415260
10.1016/j.ympev.2021.107339 [view]
Tilic, Ekin; Stiller, Josefin; Campos, Ernesto; Pleijel, Fredrik; Rouse, Greg W.
2021
Phylogenomics resolves ambiguous relationships within Aciculata (Errantia, Annelida)
Molecular Phylogenetics and Evolution
efirst 166: 107339
Publication
World Polychaeta Database (WPolyD). Formatted efirst version available from 6 November 2021
Available for editors  PDF available
Aciculata (Eunicida + Phyllodocida) is among the largest clades of annelids, comprising almost half of the known diversity of all marine annelids. Despite the group’s large size and biological importance, most phylogenomic studies on Annelida to date have had a limited sampling of this clade. The phylogenetic placement of many clades within Phyllodocida in particular has remained poorly understood. To resolve the relationships within Aciculata we conducted a large-scale phylogenomic analysis based on 24 transcriptomes (13 new), chosen to represent many family-ranked taxa that have never been included in a broad phylogenomic study. Our sampling also includes several enigmatic taxa with challenging phylogenetic placement, such as Histriobdella, Struwela, Lacydonia, Pilargis and the holopelagic worms Lopadorrhynchus, Travisiopsis and Tomopteris. Our robust phylogeny allows us to name and place some of these problematic clades and has significant implications on the systematics of the group. Within Eunicida we reinstate the names Eunicoidea and Oenonoidea. Within Phyllodocida we delineate Phyllodociformia, Glyceriformia, Nereidiformia, Nephtyiformia and Aphroditiformia. Phyllodociformia now includes: Lacydonia, Typhloscolecidae, Lopadorrhynchidae and Phyllodocidae. Nephtyiformia includes Nephtyidae and Pilargidae. We also broaden the delineation of Glyceriformia to include Sphaerodoridae, Tomopteridae and Glyceroidea (Glyceridae + Goniadidae). Furthermore, our study demonstrates and explores how conflicting, yet highly supported topologies can result from confounding signals in gene trees.
Molecular systematics, Molecular biology
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2021-11-08 01:09:54Z
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Aciculata accepted as Errantia (taxonomy source)
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