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={E. Willerslev and A. Hansen and Jonas Binladen and Tina B. Brand and M. Gilbert and B. Shapiro and M. Bunce and C. Wiuf and D. Gilichinsky and A. 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… Expand
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References

SHOWING 1-10 OF 44 REFERENCES
Diversity of Holocene life forms in fossil glacier ice.
TLDR
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. Expand
Cryptic northern refugia and the origins of the modern biota
TLDR
Increasing evidence suggests that the well-studied European southern and eastern refugia for thermophilous animal and plant taxa were supplemented by cryptic refugias in northern Europe during the Late Pleistocene, which could partially explain the ‘nonanalogue' mammalian assemblages of the Late pleistocene. Expand
The genetic origins of the Andaman Islanders.
TLDR
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. Expand
Paleolithic and neolithic lineages in the European mitochondrial gene pool.
TLDR
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. Expand
Dynamics of Pleistocene Population Extinctions in Beringian Brown Bears
TLDR
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. Expand
Mitochondrial DNA Phylogeography of the North American Brown Bear and Implications for Conservation
TLDR
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. Expand
Complete mitochondrial genome sequences of two extinct moas clarify ratite evolution
TLDR
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. Expand
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. TheseExpand
Neandertal DNA Sequences and the Origin of Modern Humans
TLDR
Neandertals went extinct without contributing mtDNA to modern humans, according to sequence comparisons with human mtDNA sequences, as well as phylogenetic analyses, which show that the Neandertal sequence falls outside the variation of modern humans. Expand
Full-glacial upland tundra vegetation preserved under tephra in the Beringia National Park, Seward Peninsula, Alaska
The nature of the full-glacial vegetation of Beringia has been the subject of a great deal of investigation and debate. Here we present a reconstruction of an intact example of the full-glacialExpand
...
1
2
3
4
5
...