The University of Southampton
University of Southampton Institutional Repository

Genetic differentiation between Arctic and Antarctic monothalamous foraminiferans

Genetic differentiation between Arctic and Antarctic monothalamous foraminiferans
Genetic differentiation between Arctic and Antarctic monothalamous foraminiferans
Monothalamous (single-chambered) foraminifers are a major component of the benthic meiofauna in high latitude regions. Several morphologically similar species are common in the Arctic and Antarctic. However, it is uncertain whether these morphospecies are genetically identical, or whether their accurate identification is compromised by a lack of distinctive morphological features. To determine the relationship between Arctic and Antarctic species, we have compared SSU rDNA sequences of specimens belonging to four morphotaxa: Micrometula, Psammophaga, Gloiogullmia, and one morphospecies Hippocrepinella hirudinea from western Svalbard (Arctic) and McMurdo Sound (Antarctic). Wherever possible, we include in our analyses representatives of these taxa from the deep Arctic and Southern Oceans, as well as from Northern European fjords. We found that in all cases, the bipolar populations were clearly distinct genetically. As expected, Arctic specimens were usually more closely related to those from Northern Europe than to their Antarctic representatives. The deep-sea specimens from Weddell Sea branched as a sister to the McMurdo Sound population, while those from the Arctic Ocean clustered with ones from Norwegian fjords. Our study has revealed a high number of cryptic species within each of the examined genera, and demonstrates the unexplored potential of monothalamous foraminifers for use as a tool to evaluate the origin and biogeography of polar meiofauna.
0722-4060
1205-1216
Pawlowski, Jan
c3b6b0e6-fb24-4452-a762-770f7eb91d72
Majewski, Wojciech
e6e682c5-4d6f-4d46-987a-3bcac30804aa
Longet, David
f44002dd-cbd0-4940-8529-e45513ba4531
Guiard, Jackie
03f8bfef-590f-446c-962a-d62175d1a3d8
Cedhagen, Tomas
84648f74-cf5b-4c23-a7e5-fbcb244c895e
Gooday, Andrew J.
d9331d67-d518-4cfb-baed-9df3333b05b9
Korsun, Sergey
364eba63-3799-4638-843a-cb54a884ea33
Habura, Andrea A.
862cfa55-f78b-42b5-be08-90de58e71fd4
Bowser, Samuel S.
19bb96ee-83f4-4c76-ba75-433b5d158dd5
Pawlowski, Jan
c3b6b0e6-fb24-4452-a762-770f7eb91d72
Majewski, Wojciech
e6e682c5-4d6f-4d46-987a-3bcac30804aa
Longet, David
f44002dd-cbd0-4940-8529-e45513ba4531
Guiard, Jackie
03f8bfef-590f-446c-962a-d62175d1a3d8
Cedhagen, Tomas
84648f74-cf5b-4c23-a7e5-fbcb244c895e
Gooday, Andrew J.
d9331d67-d518-4cfb-baed-9df3333b05b9
Korsun, Sergey
364eba63-3799-4638-843a-cb54a884ea33
Habura, Andrea A.
862cfa55-f78b-42b5-be08-90de58e71fd4
Bowser, Samuel S.
19bb96ee-83f4-4c76-ba75-433b5d158dd5

Pawlowski, Jan, Majewski, Wojciech, Longet, David, Guiard, Jackie, Cedhagen, Tomas, Gooday, Andrew J., Korsun, Sergey, Habura, Andrea A. and Bowser, Samuel S. (2008) Genetic differentiation between Arctic and Antarctic monothalamous foraminiferans. Polar Biology, 31 (10), 1205-1216. (doi:10.1007/s00300-008-0459-3).

Record type: Article

Abstract

Monothalamous (single-chambered) foraminifers are a major component of the benthic meiofauna in high latitude regions. Several morphologically similar species are common in the Arctic and Antarctic. However, it is uncertain whether these morphospecies are genetically identical, or whether their accurate identification is compromised by a lack of distinctive morphological features. To determine the relationship between Arctic and Antarctic species, we have compared SSU rDNA sequences of specimens belonging to four morphotaxa: Micrometula, Psammophaga, Gloiogullmia, and one morphospecies Hippocrepinella hirudinea from western Svalbard (Arctic) and McMurdo Sound (Antarctic). Wherever possible, we include in our analyses representatives of these taxa from the deep Arctic and Southern Oceans, as well as from Northern European fjords. We found that in all cases, the bipolar populations were clearly distinct genetically. As expected, Arctic specimens were usually more closely related to those from Northern Europe than to their Antarctic representatives. The deep-sea specimens from Weddell Sea branched as a sister to the McMurdo Sound population, while those from the Arctic Ocean clustered with ones from Norwegian fjords. Our study has revealed a high number of cryptic species within each of the examined genera, and demonstrates the unexplored potential of monothalamous foraminifers for use as a tool to evaluate the origin and biogeography of polar meiofauna.

This record has no associated files available for download.

More information

Published date: September 2008

Identifiers

Local EPrints ID: 59186
URI: http://eprints.soton.ac.uk/id/eprint/59186
ISSN: 0722-4060
PURE UUID: a4c4bfcb-da9b-4f77-ac9c-56e7f484d33a

Catalogue record

Date deposited: 27 Aug 2008
Last modified: 15 Mar 2024 11:14

Export record

Altmetrics

Contributors

Author: Jan Pawlowski
Author: Wojciech Majewski
Author: David Longet
Author: Jackie Guiard
Author: Tomas Cedhagen
Author: Andrew J. Gooday
Author: Sergey Korsun
Author: Andrea A. Habura
Author: Samuel S. Bowser

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×