Diverse Plant and Animal Genetic Records from Holocene and Pleistocene Sediments

@article{Willerslev2003DiversePA,
  title={Diverse Plant and Animal Genetic Records from Holocene and Pleistocene Sediments},
  author={Eske Willerslev and Anders Johannes Hansen and Jonas Binladen and Tina B. Brand and M. Thomas P. Gilbert and Beth Shapiro and Michael Bunce and Carsten Wiuf and David A. Gilichinsky and Alan Cooper},
  journal={Science},
  year={2003},
  volume={300},
  pages={791 - 795}
}
Genetic analyses of permafrost and temperate sediments reveal that plant and animal DNA may be preserved for long periods, even in the absence of obvious macrofossils. In Siberia, five permafrost cores ranging from 400,000 to 10,000 years old contained at least 19 different plant taxa, including the oldest authenticated ancient DNA sequences known, and megafaunal sequences including mammoth, bison, and horse. The genetic data record a number of dramatic changes in the taxonomic diversity and… 

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References

SHOWING 1-10 OF 43 REFERENCES

Diversity of Holocene life forms in fossil glacier ice.

Using sensitive molecular techniques, from 2000- and 4000-year-old ice-core samples, 120 clones are obtained and characterized that represent at least 57 distinct taxa and reveal a diversity of fungi, plants, algae, and protists.

The genetic origins of the Andaman Islanders.

The results demonstrate that Victorian anthropological collections can be used to study extinct, or seriously admixed populations, to provide new data about early human origins.

Paleolithic and neolithic lineages in the European mitochondrial gene pool.

It follows that the major extant lineages throughout Europe predate the Neolithic expansion and that the spread of agriculture was a substantially indigenous development accompanied by only a relatively minor component of contemporary Middle Eastern agriculturalists.

Dynamics of Pleistocene Population Extinctions in Beringian Brown Bears

Researchers studied genetic change in the brown bear, Ursus arctos, in eastern Beringia over the past 60,000 years using DNA preserved in permafrost remains to investigate the evolutionary impact of climatic and environmental changes associated with the last glaciation.

Mitochondrial DNA Phylogeography of the North American Brown Bear and Implications for Conservation

The mitochondrial DNA phylogeographic clades do not correlate with taxonomic classifications for U. arctos, and it is hypothesize that the clades were formed prior to migration of this species into North America.

Complete mitochondrial genome sequences of two extinct moas clarify ratite evolution

This first molecular view of the break-up of Gondwana provides a new temporal framework for speciation events within other Gondwanan biota and can be used to evaluate competing biogeographical hypotheses.

Late Quaternary History of Tundra Vegetation in Northwestern Alaska

Abstract Pollen analysis of a new core from Joe Lake indicates that the late Quaternary vegetation of northwestern Alaska was characterized by four tundra and two forest-tundra types. These