Rates of Evolution in Ancient DNA from Adélie Penguins
Well-preserved subfossil bones of Adélie penguins, Pygoscelis adeliae , underlie existing and abandoned nesting colonies in Antarctica. These bones, dating back to more than 7000 years before the present, harbor some of the best-preserved ancient DNA yet discovered. From 96 radiocarbon-aged bones,...
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American Association for the Advancement of Science (AAAS)
2002
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Online Access: | http://dx.doi.org/10.1126/science.1068105 https://www.science.org/doi/pdf/10.1126/science.1068105 |
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craaas:10.1126/science.1068105 2024-06-23T07:46:43+00:00 Rates of Evolution in Ancient DNA from Adélie Penguins Lambert, D. M. Ritchie, P. A. Millar, C. D. Holland, B. Drummond, A. J. Baroni, C. 2002 http://dx.doi.org/10.1126/science.1068105 https://www.science.org/doi/pdf/10.1126/science.1068105 en eng American Association for the Advancement of Science (AAAS) Science volume 295, issue 5563, page 2270-2273 ISSN 0036-8075 1095-9203 journal-article 2002 craaas https://doi.org/10.1126/science.1068105 2024-05-30T08:05:53Z Well-preserved subfossil bones of Adélie penguins, Pygoscelis adeliae , underlie existing and abandoned nesting colonies in Antarctica. These bones, dating back to more than 7000 years before the present, harbor some of the best-preserved ancient DNA yet discovered. From 96 radiocarbon-aged bones, we report large numbers of mitochondrial haplotypes, some of which appear to be extinct, given the 380 living birds sampled. We demonstrate DNA sequence evolution through time and estimate the rate of evolution of the hypervariable region I using a Markov chain Monte Carlo integration and a least-squares regression analysis. Our calculated rates of evolution are approximately two to seven times higher than previous indirect phylogenetic estimates. Article in Journal/Newspaper Antarc* Antarctica Pygoscelis adeliae AAAS Resource Center (American Association for the Advancement of Science) Science 295 5563 2270 2273 |
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AAAS Resource Center (American Association for the Advancement of Science) |
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English |
description |
Well-preserved subfossil bones of Adélie penguins, Pygoscelis adeliae , underlie existing and abandoned nesting colonies in Antarctica. These bones, dating back to more than 7000 years before the present, harbor some of the best-preserved ancient DNA yet discovered. From 96 radiocarbon-aged bones, we report large numbers of mitochondrial haplotypes, some of which appear to be extinct, given the 380 living birds sampled. We demonstrate DNA sequence evolution through time and estimate the rate of evolution of the hypervariable region I using a Markov chain Monte Carlo integration and a least-squares regression analysis. Our calculated rates of evolution are approximately two to seven times higher than previous indirect phylogenetic estimates. |
format |
Article in Journal/Newspaper |
author |
Lambert, D. M. Ritchie, P. A. Millar, C. D. Holland, B. Drummond, A. J. Baroni, C. |
spellingShingle |
Lambert, D. M. Ritchie, P. A. Millar, C. D. Holland, B. Drummond, A. J. Baroni, C. Rates of Evolution in Ancient DNA from Adélie Penguins |
author_facet |
Lambert, D. M. Ritchie, P. A. Millar, C. D. Holland, B. Drummond, A. J. Baroni, C. |
author_sort |
Lambert, D. M. |
title |
Rates of Evolution in Ancient DNA from Adélie Penguins |
title_short |
Rates of Evolution in Ancient DNA from Adélie Penguins |
title_full |
Rates of Evolution in Ancient DNA from Adélie Penguins |
title_fullStr |
Rates of Evolution in Ancient DNA from Adélie Penguins |
title_full_unstemmed |
Rates of Evolution in Ancient DNA from Adélie Penguins |
title_sort |
rates of evolution in ancient dna from adélie penguins |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2002 |
url |
http://dx.doi.org/10.1126/science.1068105 https://www.science.org/doi/pdf/10.1126/science.1068105 |
genre |
Antarc* Antarctica Pygoscelis adeliae |
genre_facet |
Antarc* Antarctica Pygoscelis adeliae |
op_source |
Science volume 295, issue 5563, page 2270-2273 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.1068105 |
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Science |
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295 |
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5563 |
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2270 |
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2273 |
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1802647755845271552 |