Phylogeographic analysis of the red seaweed Palmaria palmata reveals a Pleistocene marine glacial refugium in the English Channel

Authors: Provan, J., Wattier, R.A. and Maggs, C.A.

Journal: Molecular Ecology

Volume: 14

Issue: 3

Pages: 793-803

ISSN: 0962-1083

DOI: 10.1111/j.1365-294X.2005.02447.x

Abstract:

Phylogeography has provided a new approach to the analysis of the postglacial history of a wide range of taxa but, to date, little is known about the effect of glacial periods on the marine biota of Europe. We have utilized a combination of nuclear, plastid and mitochondrial genetic markers to study the biogeographic history of the red seaweed Palmaria palmata in the North Atlantic. Analysis of the nuclear rDNA operon (ITS1-5.8S-ITS2), the plastid 16S-TrnI-TrnA-23S-5S, rbcL-rbcS and rpl12-rps31-rp19 regions and the mitochondrial cox2-3 spacer has revealed the existence of a previously unidentified marine refugium in the English Channel, along with possible secondary refugia off the southwest coast of Ireland and in northeast North America and/or Iceland. Coalescent and mismatch analyses date the expansion of European populations from approximately 128 000 BP and suggest a continued period of exponential growth since then. Consequently, we postulate that the penultimate (Saale) glacial maximum was the main event in shaping the biogeographic history of European P. palmata populations which persisted throughout the last (Weichselian) glacial maximum (c. 20 000 BP) in the Hurd Deep, an enigmatic trench in the English Channel. © 2005 Blackwell Publishing Ltd.

Source: Scopus

Phylogeographic analysis of the red seaweed Palmaria palmata reveals a Pleistocene marine glacial refugium in the English Channel.

Authors: Provan, J., Wattier, R.A. and Maggs, C.A.

Journal: Mol Ecol

Volume: 14

Issue: 3

Pages: 793-803

ISSN: 0962-1083

DOI: 10.1111/j.1365-294X.2005.02447.x

Abstract:

Phylogeography has provided a new approach to the analysis of the postglacial history of a wide range of taxa but, to date, little is known about the effect of glacial periods on the marine biota of Europe. We have utilized a combination of nuclear, plastid and mitochondrial genetic markers to study the biogeographic history of the red seaweed Palmaria palmata in the North Atlantic. Analysis of the nuclear rDNA operon (ITS1-5.8S-ITS2), the plastid 16S-trnI-trnA-23S-5S, rbcL-rbcS and rpl12-rps31-rpl9 regions and the mitochondrial cox2-3 spacer has revealed the existence of a previously unidentified marine refugium in the English Channel, along with possible secondary refugia off the southwest coast of Ireland and in northeast North America and/or Iceland. Coalescent and mismatch analyses date the expansion of European populations from approximately 128,000 BP and suggest a continued period of exponential growth since then. Consequently, we postulate that the penultimate (Saale) glacial maximum was the main event in shaping the biogeographic history of European P. palmata populations which persisted throughout the last (Weichselian) glacial maximum (c. 20,000 BP) in the Hurd Deep, an enigmatic trench in the English Channel.

Source: PubMed

Phylogeographic analysis of the red seaweed <i>Palmaria palmata</i> reveals a Pleistocene marine glacial refugium in the English Channel

Authors: Provan, J., Wattier, R.A. and Maggs, C.A.

Journal: MOLECULAR ECOLOGY

Volume: 14

Issue: 3

Pages: 793-803

eISSN: 1365-294X

ISSN: 0962-1083

DOI: 10.1111/j.1365-294X.2005.02447.x

Source: Web of Science (Lite)

Phylogeographic analysis of the red seaweed Palmaria palmata reveals a Pleistocene marine glacial refugium in the English Channel.

Authors: Provan, J., Wattier, R.A. and Maggs, C.A.

Journal: Molecular ecology

Volume: 14

Issue: 3

Pages: 793-803

eISSN: 1365-294X

ISSN: 0962-1083

DOI: 10.1111/j.1365-294x.2005.02447.x

Abstract:

Phylogeography has provided a new approach to the analysis of the postglacial history of a wide range of taxa but, to date, little is known about the effect of glacial periods on the marine biota of Europe. We have utilized a combination of nuclear, plastid and mitochondrial genetic markers to study the biogeographic history of the red seaweed Palmaria palmata in the North Atlantic. Analysis of the nuclear rDNA operon (ITS1-5.8S-ITS2), the plastid 16S-trnI-trnA-23S-5S, rbcL-rbcS and rpl12-rps31-rpl9 regions and the mitochondrial cox2-3 spacer has revealed the existence of a previously unidentified marine refugium in the English Channel, along with possible secondary refugia off the southwest coast of Ireland and in northeast North America and/or Iceland. Coalescent and mismatch analyses date the expansion of European populations from approximately 128,000 BP and suggest a continued period of exponential growth since then. Consequently, we postulate that the penultimate (Saale) glacial maximum was the main event in shaping the biogeographic history of European P. palmata populations which persisted throughout the last (Weichselian) glacial maximum (c. 20,000 BP) in the Hurd Deep, an enigmatic trench in the English Channel.

Source: Europe PubMed Central