古代 の ゲノム は,チチェン ・ イツァ の 儀式 生活 に 関する 洞察 を 明らか に し て い ます
Rodrigo Barquera1,2, Oana Del Castillo-Chávez3, Kathrin Nägele4
1Department of Archaeogenetics, Max-Planck Institute for Evolutionary Anthropology (MPI-EVA), Leipzig, Germany. rodrigo_barquera@eva.mpg.de.
Nature
|June 12, 2024
まとめ
古代 マヤ 人 の ゲノム は,チチェン イッツァ に 関する 洞察 を 明らかに し て い ます
科学分野:
- パレオゲノミクス
- 考古学
- マヤ文明
背景:
- チチェン・イッツァは,主要なマヤの中心地 (AD 600-1000) でした.
- 住民の社会的・遺伝的つながりは 明らかになっていません
- サクラド・セノテの近くの 埋葬は ユニークなデータだ
研究 の 目的:
- チチェン・イッツァの亜成人の 遺伝子組成を調べる
- 古代マヤ民族の親族関係と適応の可能性を探る
- ユカタン半島の遺伝的連続性と変化を理解する.
主な方法:
- 64人の未成年者 (AD 500-900) の全ゲノムデータ分析.
- 一卵性双生児を含む近親者の身元確認
- 古代のDNAと現在の地域の人口の比較
主要な成果:
- 分析された個体は全て男性でした.
- 一卵性双子の2組を含む 密接に関連した個体が特定されました
- 現在のマヤとの遺伝的連続性を確認した 免疫遺伝子の変異が適応を示唆している
結論:
- この研究は 古代マヤの埋葬における 双子の遺伝的証拠を 提供しています
- 古代のチチェン・イッツァの人口は,現代マヤとの連続性を示しています.
- 免疫遺伝子の差異は 植民地化後の感染症への適応を示唆している.
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