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Comment on “Sedimentary DNA from a submerged site reveals wheat in the British Isles 8000 years ago”

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Science  17 Jul 2015:
Vol. 349, Issue 6245, pp. 247
DOI: 10.1126/science.aab1886

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Smith et al. (Reports, 27 February 2015, p. 998) identify wheat DNA from an 8000-calendar-years-before-the-present archaeological site in southern England and conclude that wheat was traded to Britain 2000 years before the arrival of agriculture. The DNA samples are not dated, either directly or from circumstantial evidence, so there is no chronological evidence to support the claim.

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