Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.
Johnson & Johnson

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 20 January 2006:
Vol. 311. no. 5759, p. 299
DOI: 10.1126/science.311.5759.299l
Prev | Table of Contents | Next

This Week in Science

The sequencing of ancient DNA is hoped to lend insight into evolutionary studies of a variety of species, including mammals. Poinar et al. (p. 392, published online 12 December 2005) used a roughly 28,000-year-old bone from a woolly mammoth that had been preserved in the Siberian permafrost to directly sequence ancient DNA without prior repair or amplification bias. A total of 137,000 reads (13 megabases) of mammoth DNA were generated, with only traces of human DNA contamination. Genomic comparisons were used to establish the rate of sequence divergence between extinct species and modern elephants. Examination of microbial and plant sequences isolated from the same source may also give clues about the mammoth's environment.




ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)