The University of Southampton
University of Southampton Institutional Repository

Contrasting demographic histories of European and North American sea lamprey (Petromyzon marinus) populations inferred from mitochondrial DNA sequence variation

Contrasting demographic histories of European and North American sea lamprey (Petromyzon marinus) populations inferred from mitochondrial DNA sequence variation
Contrasting demographic histories of European and North American sea lamprey (Petromyzon marinus) populations inferred from mitochondrial DNA sequence variation
Populations of anadromous sea lamprey (Petromyzon marinus) have been found to be largely genetically homogeneous across western Europe, and across the eastern seaboard of North America. However, comparatively little is known of the relationship between the European and North American populations. We quantified the extent of population structuring present over a transatlantic scale using mitochondrial DNA sequences. We found clear segregation of the populations on either side of the Atlantic, and considerable genetic homogeneity within Europe over a spatial scale of over 2000 km. The North American populations contained larger genetic diversity than those from Europe, and coalescent analyses showed a corresponding greater overall effective population size. Employing calibration points based on a dated phylogeny of the Petromyzontiformes, our analyses indicated that the North American population has been increasing in effective size since establishment ~500 000 years ago, while the total European population has only undergone population expansion only within the last 125 000 years. This evidence is consistent with a colonisation of Europe from an older North American population, and with the European population persisting through the last glaciation within regional refugia.
Bayesian skyline plots, lamprey phylogeny, migratory fishes, regional panmixia, transatlantic divergence
1323-1650
827-833
Genner, Martin J.
90547c65-c194-4c93-8ea4-b8523acef1a6
Hillman, Robert
791b1366-1460-4a02-bf4d-54ce29c82800
McHugh, Matthew
1fb03788-fb90-44ea-9dd8-a9c1ecd6ff9e
Hawkins, Stephen J.
758fe1c1-30cd-4ed1-bb65-2471dc7c11fa
Lucas, Martyn C.
f4e603ac-337f-48a7-af08-1156b0e20a8c
Genner, Martin J.
90547c65-c194-4c93-8ea4-b8523acef1a6
Hillman, Robert
791b1366-1460-4a02-bf4d-54ce29c82800
McHugh, Matthew
1fb03788-fb90-44ea-9dd8-a9c1ecd6ff9e
Hawkins, Stephen J.
758fe1c1-30cd-4ed1-bb65-2471dc7c11fa
Lucas, Martyn C.
f4e603ac-337f-48a7-af08-1156b0e20a8c

Genner, Martin J., Hillman, Robert, McHugh, Matthew, Hawkins, Stephen J. and Lucas, Martyn C. (2012) Contrasting demographic histories of European and North American sea lamprey (Petromyzon marinus) populations inferred from mitochondrial DNA sequence variation. Marine and Freshwater Research, 63 (9), 827-833. (doi:10.1071/MF12062).

Record type: Article

Abstract

Populations of anadromous sea lamprey (Petromyzon marinus) have been found to be largely genetically homogeneous across western Europe, and across the eastern seaboard of North America. However, comparatively little is known of the relationship between the European and North American populations. We quantified the extent of population structuring present over a transatlantic scale using mitochondrial DNA sequences. We found clear segregation of the populations on either side of the Atlantic, and considerable genetic homogeneity within Europe over a spatial scale of over 2000 km. The North American populations contained larger genetic diversity than those from Europe, and coalescent analyses showed a corresponding greater overall effective population size. Employing calibration points based on a dated phylogeny of the Petromyzontiformes, our analyses indicated that the North American population has been increasing in effective size since establishment ~500 000 years ago, while the total European population has only undergone population expansion only within the last 125 000 years. This evidence is consistent with a colonisation of Europe from an older North American population, and with the European population persisting through the last glaciation within regional refugia.

This record has no associated files available for download.

More information

Published date: 8 October 2012
Keywords: Bayesian skyline plots, lamprey phylogeny, migratory fishes, regional panmixia, transatlantic divergence
Organisations: Ocean Biochemistry & Ecosystems, Centre for Biological Sciences

Identifiers

Local EPrints ID: 344917
URI: http://eprints.soton.ac.uk/id/eprint/344917
ISSN: 1323-1650
PURE UUID: 221225e4-2647-4dcc-86c2-ae3262f193f1

Catalogue record

Date deposited: 06 Nov 2012 11:55
Last modified: 14 Mar 2024 12:19

Export record

Altmetrics

Contributors

Author: Martin J. Genner
Author: Robert Hillman
Author: Matthew McHugh
Author: Martyn C. Lucas

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.

×