ArticleProceedings of the National Academy of Sciences of the United States of America2005
Microevolution and mega-icebergs in the Antarctic.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Diversity of polyomaviruses and papillomaviruses in penguins from eastern and western Antarctica.Microbial genomics · 2025Article
- The influence of subcolony-scale nesting habitat on the reproductive success of Adélie penguins.Scientific reports · 2021Article
- Review
- Ancient population genomics and the study of evolution.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015Review
- A reversal of fortunes: climate change 'winners' and 'losers' in Antarctic Peninsula penguins.Scientific reports · 2014Article
- Extinct New Zealand megafauna were not in decline before human colonization.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- Antarctic climate change: extreme events disrupt plastic phenotypic response in Adélie penguins.PloS one · 2014Article
- Increase in penguin populations during the Little Ice Age in the Ross Sea, Antarctica.Scientific reports · 2013Article
- Climate change winners: receding ice fields facilitate colony expansion and altered dynamics in an Adélie penguin metapopulation.PloS one · 2013Article
- Survival differences and the effect of environmental instability on breeding dispersal in an Adelie penguin meta-population.Proceedings of the National Academy of Sciences of the United States of America · 2010Article
- Mutation and evolutionary rates in adélie penguins from the antarctic.PLoS genetics · 2008Article
- Evolution and biodiversity of Antarctic organisms: a molecular perspective.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2007Article
- Article
- Abrupt recent shift in delta 13C and delta 15N values in Adélie penguin eggshell in Antarctica.Proceedings of the National Academy of Sciences of the United States of America · 2007Article
- Trophic interactions within the Ross Sea continental shelf ecosystem.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2007Review
- Ancient DNA research goes nuclear. A new technique to extract sequence data from nuclear DNA may reveal exciting new insights into evolution and phylogeny.EMBO reports · 2006Article
Corrections and comments
- Erratum issued
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Microevolution is regarded as changes in the frequencies of genes in populations over time. Ancient DNA technology now provides an opportunity to demonstrate evolution over a geological time frame and to possibly identify the causal factors in any such evolutionary event. Using nine nuclear microsatellite DNA loci, we genotyped an ancient population of Adélie penguins (Pygoscelis adeliae) aged approximately 6,000 years B.P. Subfossil bones from this population were excavated by using an accurate stratigraphic method that allowed the identification of individuals even within the same layer. We compared the allele frequencies in the ancient population with those recorded from the modern population at the same site in Antarctica. We report significant changes in the frequencies of alleles between these two time points, hence demonstrating microevolutionary change. This study demonstrates a nuclear gene-frequency change over such a geological time frame. We discuss the possible causes of such a change, including the role of mutation, genetic drift, and the effects of gene mixing among different penguin populations. The latter is likely to be precipitated by mega-icebergs that act to promote migration among penguin colonies that typically show strong natal return.
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