Archaeological Recovery of Late Pleistocene Hair and Environmental DNA from Interior Alaska

Archaeological Recovery of Late Pleistocene Hair and Environmental DNA from Interior Alaska
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阿拉斯加内陆更新世晚期毛发和环境 DNA 的考古恢复

DOI:
10.1080/14614103.2022.2031836
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发表时间:
2022
影响因子:
1.5
通讯作者:
Shapiro, Beth
Shapiro, Beth
中科院分区:
地球科学3区
文献类型:
--
作者:
Wygal, Brian T.;Krasinski, Kathryn E.;Metcalfe, Jessica Z.;McMahan, David;Holmes, Charles E.;Crass, Barbara A.;Wriston, Teresa A.;Shirazi, Sabrina;Vershinina, Alisa;Shapiro, Beth

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古代毛发和残留的植物DNA是重要的环境代用品,在特定的考古环境中保存了数千年。然而,从晚更新世遗址中恢复的很少,如果有意寻找,可能会发现更多。一旦发现,单一的头发碎片不容易通过比较分析确定为分类群,并且环境DNA (eDNA)的提取可能因保存或污染而困难。在本文中,我们提出了从沉积物中联合恢复古代毛发标本和eDNA的方法,以提高我们对阿拉斯加内陆肖河沿岸霍尔兹曼遗址晚更新世环境的认识。该方法是一个有用的案例研究,有助于更多地了解当地的环境变化。
Ancient hair and remnant plant DNA are important environmental proxies that preserve for millennia in specific archaeological contexts. However, recovery has been rare from late Pleistocene sites and more may be found if deliberately sought. Once discovered, singular hair fragments are not easily identified to taxa through comparative analyses and environmental DNA (eDNA) extraction can be difficult depending on preservation or contamination. In this paper, we present our methods for the combined recovery of ancient hair specimens and eDNA from sediments to improve our understanding of late Pleistocene environments from the Holzman site along Shaw Creek in interior Alaska. The approach serves as a useful case study for learning more about local environmental changes.
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期刊:
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