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    Preservation of ancient DNA in thermally damaged archaeological bone

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    Publication date
    2009
    Author
    Ottoni, C.
    Koon, Hannah E.C.
    Collins, M.J.
    Penkman, K.E.H.
    Rickards, O.
    Craig, O.E.
    Keyword
    Animals; Ancient DNA;
    Archaeology;
    Bone and bones;
    Cattle; Cooking; Collagen;
    DNA/analysis/genetics/isolation & purification;
    DNA, Mitochondrial/genetics/isolation & purification;
    Fossils;
    History; Medieval;
    Polymerase chain reaction;
    Preservation; Biological;
    REF 2014
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    Abstract
    Evolutionary biologists are increasingly relying on ancient DNA from archaeological animal bones to study processes such as domestication and population dispersals. As many animal bones found on archaeological sites are likely to have been cooked, the potential for DNA preservation must be carefully considered to maximise the chance of amplification success. Here, we assess the preservation of mitochondrial DNA in a medieval cattle bone assemblage from Coppergate, York, UK. These bones have variable degrees of thermal alterations to bone collagen fibrils, indicative of cooking. Our results show that DNA preservation is not reliant on the presence of intact collagen fibrils. In fact, a greater number of template molecules could be extracted from bones with damaged collagen. We conclude that moderate heating of bone may enhance the retention of DNA fragments. Our results also indicate that ancient DNA preservation is highly variable, even within a relatively recent assemblage from contexts conducive to organic preservation, and that diagenetic parameters based on protein diagenesis are not always useful for predicting ancient DNA survival.
    URI
    http://hdl.handle.net/10454/6120
    Citation
    Ottoni C, Koon HEC, Collins MJ, Penkman KE, Rickards O and Craig OE (2009) Preservation of ancient DNA in thermally damaged archaeological bone. Naturwissenschaften. 96(2): 267-278.
    Link to publisher’s version
    http://dx.doi.org/10.1007/s00114-008-0478-5
    Type
    Article
    Collections
    Life Sciences Publications

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