Document of dataset 2437

Dataset record

Type
Dataset
title in English
Antarctic Amphipoda
Description in English
In Antarctic waters, the superfamily Lysianassoidea is one of the most important amphipod groups both in terms of species number and abundance. Dominant members of this superfamily are species of the orchomenid complex, found throughout the Southern Ocean. This study presents the first molecular phylogenetic analysis based on a representative subset of the Antarctic species belonging to different orchomenid genera and hence provides a framework for a systematic revision of these taxa. The current classification of the orchomenid genera is mainly based on mouthpart morphology. The validity of these morphological characters was assessed by resolving phylogenetic relationships using nuclear 28S rRNA and mitochondrial cytochrome oxidase subunit I sequences. The molecular data rejected most of the previously proposed taxonomic subdivisions within this complex. The genera Abyssorchomene and Orchomenella as well as the subgenus Orchomenopsis appeared to be non-monophyletic. This implies that the supposed diagnostic characters are likely a result of convergent evolution. Further, our results indicated the necessity of a revision of the family-level systematics.
Abstract in English
Data on molecular phylogenetic analysis of the superfamily Lysianassoidea in Antarctic waters.
License
https://spdx.org/licenses/CC-BY-4.0.html
bibliographicCitation
Havermans et al (2010) Molecular Phylogenetics and Evolution 55 (2010) 202–209 lysianassoids
Version
2.5

Temporal coverage

Temporal
Start date
2010-05-12
End date
2010-05-12
Accrual periodicity
Unknown

Geographical coverage

Spatial
PS, Southern Ocean

Thesaurus terms

Keyword
Data
Marine Genomics
Phylogenetics

Themes

theme
Biology > Invertebrates

Taxonomic terms

Taxon keywords
Amphipoda

Ownerships

contactPoint
Rachel Grant
contactPoint
British Antarctic Survey
creator
Charlotte Havermans
creator
Koninklijk Belgisch Instituut voor Natuurwetenschappen

Publication references

related reference
Based on this dataset /id/publication/226141

Dataset references

record
Antarctic Ocean Biodiversity Information System
related
Register of Antarctic Species(had role: partially included in)

Document metadata

date created
2010-05-17
date modified
2019-04-09