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Rates of Evolution in Ancient DNA from Adélie Penguins


Lambert, DM and Ritchie, PA and Millar, CD and Holland, BR and Drummond, AJ and Baroni, C, Rates of Evolution in Ancient DNA from Adelie Penguins, Science, 295, (5563) pp. 2270-2273. ISSN 0036-8075 (2002) [Refereed Article]

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© 2002 American Association for the Advancement of Science. All Rights Reserved.

DOI: doi:10.1126/science.1068105


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.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Genetics
Research Field:Molecular evolution
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:Holland, BR (Professor Barbara Holland)
ID Code:63083
Year Published:2002
Web of Science® Times Cited:233
Deposited By:Mathematics
Deposited On:2010-04-14
Last Modified:2013-02-21
Downloads:5 View Download Statistics

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