Microevolution and mega-icebergs in the Antarctic.

  title={Microevolution and mega-icebergs in the Antarctic.},
  author={Lara D Shepherd and Craig D. Millar and Grant Ballard and David G. Ainley and Peter Raymond Wilson and Gwilym D. Haynes and Carlo Baroni and David M. Lambert},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={102 46},
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… CONTINUE READING

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