Application and comparison of large-scale solution-based DNA capture-enrichment methods on ancient DNA

Maria del Carmen Avila Arcos, Enrico Cappellini, J. Alberto Romero-Navarro, Nathan Wales, José Victor Moreno Mayar, Morten Rasmussen, Sarah Louise Fordyce, Rafael Montiel, Jean-Philippe Vielle-Calzada, Eske Willerslev, Tom Gilbert

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    Abstract

    The development of second-generation sequencing technologies has greatly benefitted the field of ancient DNA (aDNA). Its application can be further exploited by the use of targeted capture-enrichment methods to overcome restrictions posed by low endogenous and contaminating DNA in ancient samples. We tested the performance of Agilent's SureSelect and Mycroarray's MySelect in-solution capture systems on Illumina sequencing libraries built from ancient maize to identify key factors influencing aDNA capture experiments. High levels of clonality as well as the presence of multiple-copy sequences in the capture targets led to biases in the data regardless of the capture method. Neither method consistently outperformed the other in terms of average target enrichment, and no obvious difference was observed either when two tiling designs were compared. In addition to demonstrating the plausibility of capturing aDNA from ancient plant material, our results also enable us to provide useful recommendations for those planning targeted-sequencing on aDNA.
    OriginalsprogEngelsk
    Artikelnummer74
    TidsskriftScientific Reports
    Vol/bind1
    Antal sider5
    ISSN2045-2322
    DOI
    StatusUdgivet - 2011

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