Late Quaternary loss of genetic diversity in muskox (Ovibos)
Abstract Background The modern wildherd of the tundra muskox ( Ovibos moschatus ) is native only to the New World (northern North America and Greenland), and its genetic diversity is notably low. However, like several other megafaunal mammals, muskoxen enjoyed a holarctic distribution during the lat...
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crspringernat:10.1186/1471-2148-5-49 2023-05-15T14:28:56+02:00 Late Quaternary loss of genetic diversity in muskox (Ovibos) MacPhee, Ross DE Tikhonov, Alexei N Mol, Dick Greenwood, Alex D 2005 http://dx.doi.org/10.1186/1471-2148-5-49 https://link.springer.com/content/pdf/10.1186/1471-2148-5-49.pdf en eng Springer Science and Business Media LLC BMC Evolutionary Biology volume 5, issue 1 ISSN 1471-2148 Ecology, Evolution, Behavior and Systematics journal-article 2005 crspringernat https://doi.org/10.1186/1471-2148-5-49 2022-01-04T14:42:13Z Abstract Background The modern wildherd of the tundra muskox ( Ovibos moschatus ) is native only to the New World (northern North America and Greenland), and its genetic diversity is notably low. However, like several other megafaunal mammals, muskoxen enjoyed a holarctic distribution during the late Pleistocene. To investigate whether collapse in range and loss of diversity might be correlated, we collected mitochondrial sequence data (hypervariable region and cytochrome b ) from muskox fossil material recovered from localities in northeastern Asia and the Arctic Archipelago of northern North America, dating from late Pleistocene to late Holocene, and compared our results to existing databases for modern muskoxen. Results Two classes of haplotypes were detected in the fossil material. "Surviving haplotypes" (SHs), closely similar or identical to haplotypes found in modern muskoxen and ranging in age from ~22,000 to ~160 yrbp, were found in all New World samples as well as some samples from northeastern Asia. "Extinct haplotypes" (EHs), dating between ~44,000 and ~18,000 yrbp, were found only in material from the Taimyr Peninsula and New Siberian Islands in northeastern Asia. EHs were not found in the Holocene muskoxen specimens available for this study, nor have they been found in other studies of extant muskox populations. Conclusion We provisionally interpret this evidence as showing that genetic variability was reduced in muskoxen after the Last Glacial Maximum but before the mid-Holocene, or roughly within the interval 18,000-4,000 yrbp. Narrowing this gap further will require the recovery of more fossils and additional genetic information from this interval. Article in Journal/Newspaper Arctic Archipelago Arctic Greenland muskox New Siberian Islands ovibos moschatus Taimyr Tundra Springer Nature (via Crossref) Arctic Greenland New Siberian Islands ENVELOPE(142.000,142.000,75.000,75.000) BMC Evolutionary Biology 5 1 |
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Open Polar |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology, Evolution, Behavior and Systematics MacPhee, Ross DE Tikhonov, Alexei N Mol, Dick Greenwood, Alex D Late Quaternary loss of genetic diversity in muskox (Ovibos) |
topic_facet |
Ecology, Evolution, Behavior and Systematics |
description |
Abstract Background The modern wildherd of the tundra muskox ( Ovibos moschatus ) is native only to the New World (northern North America and Greenland), and its genetic diversity is notably low. However, like several other megafaunal mammals, muskoxen enjoyed a holarctic distribution during the late Pleistocene. To investigate whether collapse in range and loss of diversity might be correlated, we collected mitochondrial sequence data (hypervariable region and cytochrome b ) from muskox fossil material recovered from localities in northeastern Asia and the Arctic Archipelago of northern North America, dating from late Pleistocene to late Holocene, and compared our results to existing databases for modern muskoxen. Results Two classes of haplotypes were detected in the fossil material. "Surviving haplotypes" (SHs), closely similar or identical to haplotypes found in modern muskoxen and ranging in age from ~22,000 to ~160 yrbp, were found in all New World samples as well as some samples from northeastern Asia. "Extinct haplotypes" (EHs), dating between ~44,000 and ~18,000 yrbp, were found only in material from the Taimyr Peninsula and New Siberian Islands in northeastern Asia. EHs were not found in the Holocene muskoxen specimens available for this study, nor have they been found in other studies of extant muskox populations. Conclusion We provisionally interpret this evidence as showing that genetic variability was reduced in muskoxen after the Last Glacial Maximum but before the mid-Holocene, or roughly within the interval 18,000-4,000 yrbp. Narrowing this gap further will require the recovery of more fossils and additional genetic information from this interval. |
format |
Article in Journal/Newspaper |
author |
MacPhee, Ross DE Tikhonov, Alexei N Mol, Dick Greenwood, Alex D |
author_facet |
MacPhee, Ross DE Tikhonov, Alexei N Mol, Dick Greenwood, Alex D |
author_sort |
MacPhee, Ross DE |
title |
Late Quaternary loss of genetic diversity in muskox (Ovibos) |
title_short |
Late Quaternary loss of genetic diversity in muskox (Ovibos) |
title_full |
Late Quaternary loss of genetic diversity in muskox (Ovibos) |
title_fullStr |
Late Quaternary loss of genetic diversity in muskox (Ovibos) |
title_full_unstemmed |
Late Quaternary loss of genetic diversity in muskox (Ovibos) |
title_sort |
late quaternary loss of genetic diversity in muskox (ovibos) |
publisher |
Springer Science and Business Media LLC |
publishDate |
2005 |
url |
http://dx.doi.org/10.1186/1471-2148-5-49 https://link.springer.com/content/pdf/10.1186/1471-2148-5-49.pdf |
long_lat |
ENVELOPE(142.000,142.000,75.000,75.000) |
geographic |
Arctic Greenland New Siberian Islands |
geographic_facet |
Arctic Greenland New Siberian Islands |
genre |
Arctic Archipelago Arctic Greenland muskox New Siberian Islands ovibos moschatus Taimyr Tundra |
genre_facet |
Arctic Archipelago Arctic Greenland muskox New Siberian Islands ovibos moschatus Taimyr Tundra |
op_source |
BMC Evolutionary Biology volume 5, issue 1 ISSN 1471-2148 |
op_doi |
https://doi.org/10.1186/1471-2148-5-49 |
container_title |
BMC Evolutionary Biology |
container_volume |
5 |
container_issue |
1 |
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1766303052470419456 |