Description
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.
Data Records
The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 165 records.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versions
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Havermans et al (2010) Molecular Phylogenetics and Evolution 55 (2010) 202–209 lysianassoids
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is SCAR - AntOBIS. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: 7b9545bc-f762-11e1-a439-00145eb45e9a. SCAR - AntOBIS publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Ocean Biodiversity Information System.
Keywords
Occurrence
External data
The resource data is also available in other formats
| Online dataset | http://www.iobis.org/mapper/?dataset=1982 UTF-8 Plain Text |
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| Metadata | http://www.vliz.be/imis/imis.php?module=dataset&dasid=2437 UTF-8 XML |
Contacts
- Originator ●
- Point Of Contact
- Metadata Provider
Geographic Coverage
PS, Southern Ocean
| Bounding Coordinates | South West [-75, -60], North East [-50, 175] |
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Taxonomic Coverage
urn:lsid:marinespecies.org:taxname:1135
| Order | Amphipoda [amphipods] |
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Temporal Coverage
| Start Date | 2010-05-12 |
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Additional Metadata
marine, harvested by iOBIS
| Alternative Identifiers | 7b9545bc-f762-11e1-a439-00145eb45e9a |
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| https://ipt.biodiversity.aq/resource?r=antarctic_aphipoda |