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AuthentiCT: a model of ancient DNA damage to estimate the proportion of present-day DNA contamination
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Abstract
Contamination from present-day DNA is a fundamental issue when studying ancient DNA from historical or archaeological material, and quantifying the amount of contamination is essential for downstream analyses. We present AuthentiCT, a command-line tool to estimate the proportion of present-day DNA contamination in ancient DNA datasets generated from single-stranded DNA libraries. The prediction is based solely on the patterns of post-mortem damage observed on ancient DNA sequences. The method has the power to quantify contamination from as few as 10,000 mapped sequences, making it particularly useful for analysing specimens that are poorly preserved or for which little data is available.
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“Emerging methods such as AuthentiCT 192 , which uses a model of cytosine deamination to estimate contamination, promise to generalize contamination inference across organisms, sex and chromosome types, thereby mitigating the need for the ploidy-based approaches.”
From Ancient DNA analysis (2021) · cites this paper as [192]
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“For highly degraded or contaminated material, analyses may be conditioned on reads showing evidence of post-mortem DNA damage 55,189,192 and/or limited to transversions 7 so as to mitigate both rampant contamination and damage-related nucleotide misincorporation.”
From Ancient DNA analysis (2021) · cites this paper as [192]
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Self-citation
Metadata
- Authors
- Peyrégne, S., & Peter, B. M.
- ORCID
- Peyrégne, Stéphane
- Venue
- Genome Biology
- Published
- 2020-09-15
- Volume
- 21
- Issue
- 1
- ISSN
- 1474-760X
- PMC
- PMC7490890
- Cited by
- 71
- References
- 22
- Language
- en
- Funders
- Max-Planck-Gesellschaft
- European Research Council (694707)
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