多様なヒト集団における共通と希少の遺伝的多様性を統合する
1, David M Altshuler, Richard A Gibbs
1Broad Institute, 7 Cambridge Center, Cambridge, Massachusetts 02138, USA. altshuler@molbio.mgh.harvard.edu
Nature
|September 3, 2010
まとめ
HapMap 3のリソースは,多様な集団の共通・まれなアレルを含む,ヒトの遺伝的多様性の包括的な地図を提供します. これにより,ゲノム変異のより深い理解が可能になります.
科学分野:
- ゲノミクスゲノミクスとは
- 人口遺伝学 人口遺伝学
- 人間の病気 遺伝学
背景:
- 人間の病気の遺伝的変異を特定することは極めて重要ですが,多くの遺伝的リスクはまだ説明されていないままです.
- 理解するには,多様な祖先集団におけるより稀なアレルを調べる全ゲノム研究が必要です.
研究 の 目的:
- 多様な集団の共通と稀な遺伝子変異の統合データセット (HapMap 3) を作成する.
- 全ゲノム関連研究 (GWAS) の設計と解釈を参考にする.
主な方法:
- ゲノタイプ化された160万の共通単一ヌクレオチドポリモルフィズム (SNPs) が,世界の11の集団から1,184人の個体で確認されました.
- 692 個の10 個の100 キロベース領域をシーケンスしました.
- 統合されたデータには,SNPとコピーナンバーポリモルフィズム (CNP) が含まれていた.
主要な成果:
- 低頻度変異における集団特有の差異を特徴づける.
- より大きな参照パネルを使用して,マイナーアレル頻度 ≤5%のSNPの推定精度が向上しました.
- 新しく発見されたCNPとSNPを割り当てる可能性が実証されました.
結論:
- HapMap 3のリソースは,世界の人口のゲノム変異に対する公衆のアクセスを拡大します.
- ヒトの病気におけるゲノム変異の役割のより深い尋問をサポートします.
- 人間の遺伝的多様性の高解像度地図への一歩を表しています.
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