The importance of Anatolian mountains as the cradle of global diversity in Arabis alpina, a key arctic-alpine species
Background and Aims Anatolia is a biologically diverse, but phylogeographically under-explored region. It is described as either a centre of origin and long-term Pleistocene refugium, or as a centre for genetic amalgamation, fed from distinct neighbouring refugia. These contrasting hypotheses are te...
Published in: | Annals of Botany |
---|---|
Main Authors: | , , , , , , |
Format: | Text |
Language: | English |
Published: |
Oxford University Press
2011
|
Subjects: | |
Online Access: | http://aob.oxfordjournals.org/cgi/content/short/mcr134v1 https://doi.org/10.1093/aob/mcr134 |
id |
fthighwire:oai:open-archive.highwire.org:annbot:mcr134v1 |
---|---|
record_format |
openpolar |
spelling |
fthighwire:oai:open-archive.highwire.org:annbot:mcr134v1 2023-05-15T15:00:27+02:00 The importance of Anatolian mountains as the cradle of global diversity in Arabis alpina, a key arctic-alpine species Ansell, Stephen W. Stenøien, Hans K. Grundmann, Michael Russell, Stephen J. Koch, Marcus A. Schneider, Harald Vogel, Johannes C. 2011-06-28 01:38:23.0 text/html http://aob.oxfordjournals.org/cgi/content/short/mcr134v1 https://doi.org/10.1093/aob/mcr134 en eng Oxford University Press http://aob.oxfordjournals.org/cgi/content/short/mcr134v1 http://dx.doi.org/10.1093/aob/mcr134 Copyright (C) 2011, Oxford University Press Article TEXT 2011 fthighwire https://doi.org/10.1093/aob/mcr134 2013-05-27T20:12:05Z Background and Aims Anatolia is a biologically diverse, but phylogeographically under-explored region. It is described as either a centre of origin and long-term Pleistocene refugium, or as a centre for genetic amalgamation, fed from distinct neighbouring refugia. These contrasting hypotheses are tested through a global phylogeographic analysis of the arctic–alpine herb, Arabis alpina . Methods Herbarium and field collections were used to sample comprehensively the entire global range, with special focus on Anatolia and Levant. Sequence variation in the chloroplast DNA trn L- trn F region was examined in 483 accessions. A haplotype genealogy was constructed and phylogeographic methods, demographic analysis and divergence time estimations were used to identify the centres of diversity and to infer colonization history. Key Results Fifty-seven haplotypes were recovered, belonging to three haplogroups with non-overlapping distributions in (1) North America/Europe/northern Africa, (2) the Caucuses/Iranian Plateau/Arabian Peninsula and (3) Ethiopia–eastern Africa. All haplogroups occur within Anatolia, and all intermediate haplotypes linking the three haplogroups are endemic to central Anatolia and Levant, where haplotypic and nucleotide diversities exceeded all other regions. The local pattern of haplotype distribution strongly resembles the global pattern, and the haplotypes began to diverge approx. 2·7 Mya, coinciding with the climate cooling of the early Middle Pleistocene. Conclusions The phylogeographic structure of Arabis alpina is consistent with Anatolia being the cradle of origin for global genetic diversification. The highly structured landscape in combination with the Pleistocene climate fluctuations has created a network of mountain refugia and the accumulation of spatially arranged genotypes. This local Pleistocene population history has subsequently left a genetic imprint at the global scale, through four range expansions from the Anatolian diversity centre into Europe, the Near East, Arabia and ... Text Arctic HighWire Press (Stanford University) Arctic Annals of Botany 108 2 241 252 |
institution |
Open Polar |
collection |
HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
Article |
spellingShingle |
Article Ansell, Stephen W. Stenøien, Hans K. Grundmann, Michael Russell, Stephen J. Koch, Marcus A. Schneider, Harald Vogel, Johannes C. The importance of Anatolian mountains as the cradle of global diversity in Arabis alpina, a key arctic-alpine species |
topic_facet |
Article |
description |
Background and Aims Anatolia is a biologically diverse, but phylogeographically under-explored region. It is described as either a centre of origin and long-term Pleistocene refugium, or as a centre for genetic amalgamation, fed from distinct neighbouring refugia. These contrasting hypotheses are tested through a global phylogeographic analysis of the arctic–alpine herb, Arabis alpina . Methods Herbarium and field collections were used to sample comprehensively the entire global range, with special focus on Anatolia and Levant. Sequence variation in the chloroplast DNA trn L- trn F region was examined in 483 accessions. A haplotype genealogy was constructed and phylogeographic methods, demographic analysis and divergence time estimations were used to identify the centres of diversity and to infer colonization history. Key Results Fifty-seven haplotypes were recovered, belonging to three haplogroups with non-overlapping distributions in (1) North America/Europe/northern Africa, (2) the Caucuses/Iranian Plateau/Arabian Peninsula and (3) Ethiopia–eastern Africa. All haplogroups occur within Anatolia, and all intermediate haplotypes linking the three haplogroups are endemic to central Anatolia and Levant, where haplotypic and nucleotide diversities exceeded all other regions. The local pattern of haplotype distribution strongly resembles the global pattern, and the haplotypes began to diverge approx. 2·7 Mya, coinciding with the climate cooling of the early Middle Pleistocene. Conclusions The phylogeographic structure of Arabis alpina is consistent with Anatolia being the cradle of origin for global genetic diversification. The highly structured landscape in combination with the Pleistocene climate fluctuations has created a network of mountain refugia and the accumulation of spatially arranged genotypes. This local Pleistocene population history has subsequently left a genetic imprint at the global scale, through four range expansions from the Anatolian diversity centre into Europe, the Near East, Arabia and ... |
format |
Text |
author |
Ansell, Stephen W. Stenøien, Hans K. Grundmann, Michael Russell, Stephen J. Koch, Marcus A. Schneider, Harald Vogel, Johannes C. |
author_facet |
Ansell, Stephen W. Stenøien, Hans K. Grundmann, Michael Russell, Stephen J. Koch, Marcus A. Schneider, Harald Vogel, Johannes C. |
author_sort |
Ansell, Stephen W. |
title |
The importance of Anatolian mountains as the cradle of global diversity in Arabis alpina, a key arctic-alpine species |
title_short |
The importance of Anatolian mountains as the cradle of global diversity in Arabis alpina, a key arctic-alpine species |
title_full |
The importance of Anatolian mountains as the cradle of global diversity in Arabis alpina, a key arctic-alpine species |
title_fullStr |
The importance of Anatolian mountains as the cradle of global diversity in Arabis alpina, a key arctic-alpine species |
title_full_unstemmed |
The importance of Anatolian mountains as the cradle of global diversity in Arabis alpina, a key arctic-alpine species |
title_sort |
importance of anatolian mountains as the cradle of global diversity in arabis alpina, a key arctic-alpine species |
publisher |
Oxford University Press |
publishDate |
2011 |
url |
http://aob.oxfordjournals.org/cgi/content/short/mcr134v1 https://doi.org/10.1093/aob/mcr134 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
http://aob.oxfordjournals.org/cgi/content/short/mcr134v1 http://dx.doi.org/10.1093/aob/mcr134 |
op_rights |
Copyright (C) 2011, Oxford University Press |
op_doi |
https://doi.org/10.1093/aob/mcr134 |
container_title |
Annals of Botany |
container_volume |
108 |
container_issue |
2 |
container_start_page |
241 |
op_container_end_page |
252 |
_version_ |
1766332555910447104 |