Molecular Phylogeny and Revision of Copepod Orders (Crustacea: Copepoda)

For the first time, the phylogenetic relationships between representatives of all 10 copepod orders have been investigated using 28S and 18S rRNA, Histone H3 protein and COI mtDNA. The monophyly of Copepoda (including Platycopioida Fosshagen, 1985) is demonstrated for the first time using molecular...

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Bibliographic Details
Published in:Scientific reports 2017-08, Vol.7 (1), p.9164-9164
Main Authors: Khodami, Sahar, McArthur, J Vaun, Blanco-Bercial, Leocadio, Martinez Arbizu, Pedro
Format: Article
Language:English
Subjects:
Animals
Calanoida
Copepoda
Copepoda - classification
Copepoda - genetics
Cyclopoida
Cytochrome
DNA, Ribosomal - genetics
Evolution, Molecular
Harpacticoida
Histone H3
Histones - genetics
Misophrioida
Mitochondrial DNA
Morphology
New taxa
Oceans
Phylogenetics
Phylogeny
Platycopioida
Proteins
RNA, Ribosomal, 18S - genetics
RNA, Ribosomal, 28S - genetics
rRNA 18S
rRNA 28S
Sequence Analysis, DNA - methods
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Summary:For the first time, the phylogenetic relationships between representatives of all 10 copepod orders have been investigated using 28S and 18S rRNA, Histone H3 protein and COI mtDNA. The monophyly of Copepoda (including Platycopioida Fosshagen, 1985) is demonstrated for the first time using molecular data. Maxillopoda is rejected, as it is a polyphyletic group. The monophyly of the major subgroups of Copepoda, including Progymnoplea Lang, 1948 (=Platycopioida); Neocopepoda Huys and Boxshall, 1991; Gymnoplea Giesbrecht, 1892 (=Calanoida Sars, 1903); and Podoplea Giesbrecht, 1892, are supported in this study. Seven copepod orders are monophyletic, including Platycopioida, Calanoida, Misophrioida Gurney, 1933; Monstrilloida Sars, 1901; Siphonostomatoida Burmeister, 1834; Gelyelloida Huys, 1988; and Mormonilloida Boxshall, 1979. Misophrioida (=Propodoplea Lang, 1948) is the most basal Podoplean order. The order Cyclopoida Burmeister, 1835, is paraphyletic and now encompasses Poecilostomatoida Thorell, 1859, as a sister to the family Schminkepinellidae Martinez Arbizu, 2006. Within Harpacticoida Sars, 1903, both sections, Polyarthra Lang, 1948, and Oligoarthra Lang, 1948, are monophyletic, but not sister groups. The order Canuelloida is proposed while maintaining the order Harpacticoida s. str. (Oligoarthra). Cyclopoida, Harpacticoida and Cyclopinidae are redefined, while Canuelloida ordo. nov., Smirnovipinidae fam. nov. and Cyclopicinidae fam. nov are proposed as new taxa.
ISSN:2045-2322
DOI:10.1038/s41598-017-06656-4