100の古代ゲノムは,新石器時代のデンマークで繰り返された人口転移を示しています
Morten E Allentoft1,2, Martin Sikora3, Anders Fischer4,5
1Lundbeck Foundation GeoGenetics Centre, Globe Institute, University of Copenhagen, Copenhagen, Denmark. morten.allentoft@curtin.edu.au.
Nature
|January 10, 2024
まとめ
古代 の DNA が デンマーク を 明らかに し て いる
科学分野:
- パレオゲノミクス
- 考古遺伝学
- ヨーロッパ史前史
背景:
- ホロセヌス・ユーラシアの移住の出来事は,遺伝的に広いスケールで特徴付けられています.
- 接触地域における高解像度の古代ゲノムデータの欠如は,人口動態の洞察を制限しています.
研究 の 目的:
- デンマークの古代ゲノムを 7,300年にわたって分析します
- ゲノムデータを食事,移動,植物のプロキシと統合する.
- 中石器,新石器,青銅器時代の人口動態を再構築する.
主な方法:
- ショットガンのシーケンス 古代の骨格100個
- ダイエット用安定同位体分析 (13C,15N)
- 流動性のためのストロンチウム同位体比 (87Sr/86Sr).
- 植物の花粉の分析
主要な成果:
- デンマークの中石器時代の狩猟採集者 (マグレモス,コンゲモス,エルテボール) は 独特で遺伝的に均質な集団を形成した.
- アナトリア出身の農民による急激な新石器時代の移行は,人口転移をもたらし,地元の狩猟採集者の混合は最小限であった.
- ステップ系祖先 (シングル・グレイブ・カルチャー) に 의한第二の急速な代替は,フンネル・ビーカー・カルチャーの後に起こった.
結論:
- デンマークの主要な人口動態の変化は,遺伝学,食事,移動,土地利用の並行的な変化によって特徴付けられました.
- 人口の交換は迅速で 遺伝的景観を大きく変えました
- マルチプロキシデータと組み合わせた古代ゲノミクスは,ヨーロッパの人口の歴史について高解像度の洞察を提供します.
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