Mitochondrial DNA variation and the evolutionary history of chromosome races of collared lemmings ( Dicrostonyx) in the Eurasian Arctic
Abstract Collared lemmings (Dicrostonyx) demonstrate extensive chromosome variation along their circumpolar distribution in the high Arctic. To reveal the history of this genus and the origin of chromosome races in the Palearctic, we studied the geographical pattern of mtDNA variation in lemmings fr...
Published in: | Journal of Evolutionary Biology |
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Oxford University Press (OUP)
1999
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Online Access: | http://dx.doi.org/10.1046/j.1420-9101.1999.00017.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.1999.00017.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1420-9101.1999.00017.x https://academic.oup.com/jeb/article-pdf/12/1/134/54430622/j.1420-9101.1999.00017.x.pdf |
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croxfordunivpr:10.1046/j.1420-9101.1999.00017.x 2024-05-19T07:35:45+00:00 Mitochondrial DNA variation and the evolutionary history of chromosome races of collared lemmings ( Dicrostonyx) in the Eurasian Arctic Fedorov Fredga Jarrell 1999 http://dx.doi.org/10.1046/j.1420-9101.1999.00017.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.1999.00017.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1420-9101.1999.00017.x https://academic.oup.com/jeb/article-pdf/12/1/134/54430622/j.1420-9101.1999.00017.x.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Evolutionary Biology volume 12, issue 1, page 134-145 ISSN 1010-061X 1420-9101 journal-article 1999 croxfordunivpr https://doi.org/10.1046/j.1420-9101.1999.00017.x 2024-04-25T07:58:40Z Abstract Collared lemmings (Dicrostonyx) demonstrate extensive chromosome variation along their circumpolar distribution in the high Arctic. To reveal the history of this genus and the origin of chromosome races in the Palearctic, we studied the geographical pattern of mtDNA variation in lemmings from 13 localities by using eight tetranucleotide restriction enzymes. The main split in mtDNA phylogeny is at the Bering Strait and corresponds to the main chromosome division between the Beringian and the Eurasian groups of karyotypes. Nucleotide divergence estimate of 6.8% suggests that, despite the Bering Land Bridge, Palearctic and Nearctic forms have been separated since the mid-Pleistocene. Five distinct phylogenetic groups of mtDNA haplotypes, with average divergence of 1.5%, corresponding to geographical regions, were found along the Palearctic coast. Low nucleotide and haplotype diversity and a star-like phylogeny within phylogeographical groups of haplotypes suggest regional bottleneck events in the recent past, most probably due to warming events during the Holocene. There is congruence between phylogeographical pattern of mtDNA variation and geographical distribution of chromosome races; 69% of the total mtDNA variation is allocated among chromosome races. This congruence implies that historical events such as fragmentation and allopatric bottleneck events have been important for the origin of chromosome races. However, historical factors do not explain the fixed autosome fusions found to distinguish certain populations. Article in Journal/Newspaper Arctic Bering Land Bridge Bering Strait Oxford University Press Journal of Evolutionary Biology 12 1 134 145 |
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Open Polar |
collection |
Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Collared lemmings (Dicrostonyx) demonstrate extensive chromosome variation along their circumpolar distribution in the high Arctic. To reveal the history of this genus and the origin of chromosome races in the Palearctic, we studied the geographical pattern of mtDNA variation in lemmings from 13 localities by using eight tetranucleotide restriction enzymes. The main split in mtDNA phylogeny is at the Bering Strait and corresponds to the main chromosome division between the Beringian and the Eurasian groups of karyotypes. Nucleotide divergence estimate of 6.8% suggests that, despite the Bering Land Bridge, Palearctic and Nearctic forms have been separated since the mid-Pleistocene. Five distinct phylogenetic groups of mtDNA haplotypes, with average divergence of 1.5%, corresponding to geographical regions, were found along the Palearctic coast. Low nucleotide and haplotype diversity and a star-like phylogeny within phylogeographical groups of haplotypes suggest regional bottleneck events in the recent past, most probably due to warming events during the Holocene. There is congruence between phylogeographical pattern of mtDNA variation and geographical distribution of chromosome races; 69% of the total mtDNA variation is allocated among chromosome races. This congruence implies that historical events such as fragmentation and allopatric bottleneck events have been important for the origin of chromosome races. However, historical factors do not explain the fixed autosome fusions found to distinguish certain populations. |
format |
Article in Journal/Newspaper |
author |
Fedorov Fredga Jarrell |
spellingShingle |
Fedorov Fredga Jarrell Mitochondrial DNA variation and the evolutionary history of chromosome races of collared lemmings ( Dicrostonyx) in the Eurasian Arctic |
author_facet |
Fedorov Fredga Jarrell |
author_sort |
Fedorov |
title |
Mitochondrial DNA variation and the evolutionary history of chromosome races of collared lemmings ( Dicrostonyx) in the Eurasian Arctic |
title_short |
Mitochondrial DNA variation and the evolutionary history of chromosome races of collared lemmings ( Dicrostonyx) in the Eurasian Arctic |
title_full |
Mitochondrial DNA variation and the evolutionary history of chromosome races of collared lemmings ( Dicrostonyx) in the Eurasian Arctic |
title_fullStr |
Mitochondrial DNA variation and the evolutionary history of chromosome races of collared lemmings ( Dicrostonyx) in the Eurasian Arctic |
title_full_unstemmed |
Mitochondrial DNA variation and the evolutionary history of chromosome races of collared lemmings ( Dicrostonyx) in the Eurasian Arctic |
title_sort |
mitochondrial dna variation and the evolutionary history of chromosome races of collared lemmings ( dicrostonyx) in the eurasian arctic |
publisher |
Oxford University Press (OUP) |
publishDate |
1999 |
url |
http://dx.doi.org/10.1046/j.1420-9101.1999.00017.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.1999.00017.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1420-9101.1999.00017.x https://academic.oup.com/jeb/article-pdf/12/1/134/54430622/j.1420-9101.1999.00017.x.pdf |
genre |
Arctic Bering Land Bridge Bering Strait |
genre_facet |
Arctic Bering Land Bridge Bering Strait |
op_source |
Journal of Evolutionary Biology volume 12, issue 1, page 134-145 ISSN 1010-061X 1420-9101 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1420-9101.1999.00017.x |
container_title |
Journal of Evolutionary Biology |
container_volume |
12 |
container_issue |
1 |
container_start_page |
134 |
op_container_end_page |
145 |
_version_ |
1799474773121564672 |