中国の人口36のパンゲノム参照
Yang Gao1,2,3,4, Xiaofei Yang5,6,7, Hao Chen3
1State Key Laboratory of Genetic Engineering, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Center for Evolutionary Biology, School of Life Sciences, Fudan University, Shanghai, China.
Nature
|June 14, 2023
まとめ
中国パンゲノムコンソーシアムは 様々な民族から高品質のゲノムアセンブリを作成し 人間のパンゲノムを大幅に拡張しました この研究は,亞洲人の代表が不足している集団のゲノム表現を強化し,人間の進化と病気を理解するのに役立ちます.
科学分野:
- ゲノミクス
- 人口遺伝学
- バイオ情報学
背景:
- 現在のヒト参照ゲノム (GRCh38) は,特にアジア系の人口の多様性から代表されていません.
- パンゲノムアプローチへの移行は,ヒトの遺伝的多様性をより包括的に理解するために不可欠です.
研究 の 目的:
- 高品質のパンゲノムアセンブリを作成することで,ゲノム学におけるアジア人の不足に対処する.
- 現在の参照から欠けている新しい遺伝的変異と配列を特定する.
主な方法:
- 36の少数民族の中国人からの58のコアサンプルから116の高品質のハプロタイプ段階のデノボゲノムアセンブリを生成しました.
- 平均カバー率30.65×の高精度ロングリードシーケンスを使用した.
- 既存の参照と比較した小型および構造的な変形のための分析された組み立て.
主要な成果:
- 189万塩基対のユークロマティック多形配列と1,367のタンパク質をコードする遺伝子複製をGRCh38に追加した.
- 最近のパンゲノム参照と比較して,約1590万の小さな変異体と78072の構造変異体が見つかりました.
- 欠落した配列で古典的由来のアレルと 機能的に重要な遺伝子を発見した.
結論:
- 中国パンゲノムコンソーシアムのデータは 代表が不足している集団のゲノム表現を大幅に改善しています
- この発見は 人類の進化や適応 そして複雑な病気の遺伝的根拠について 洞察力を与えてくれます
- この研究は,ゲノム医学の進歩における 多様なデータの重要性を強調しています.
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