大規模な並列DNAシーケンシングによる個人の完全なゲノム
David A Wheeler1, Maithreyan Srinivasan, Michael Egholm
1Human Genome Sequencing Center, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA.
Nature
|April 19, 2008
まとめ
次世代のシーケンシング技術は,個人の完全な二倍体ゲノムを迅速かつ手頃な価格で成功裏にシーケンス化しています. ゲノム医学におけるこの画期的な発見は,個別化されたゲノム配列決定と遺伝子変異のより深い理解への道を開く.
科学分野:
- ゲノミクスとパーソナライズド医療
- 分子生物学と遺伝学
背景:
- 二重体ヒトゲノムの大きなサイズ (約. 6ギガベース) は歴史的に完全な個体ゲノム配列を阻害してきました.
- 核酸技術の進歩と,病気や薬剤への反応における遺伝的多様性の役割の理解は,ゲノム医学の希望を助長しています.
研究 の 目的:
- 完全な個々のヒトゲノムの配列決定の限界を克服するために.
- 新技術を用いた迅速で,費用対効果が高く,包括的な二倍体ゲノム配列決定の実現可能性を実証する.
主な方法:
- ピコリットルサイズの反応容器で大規模な並列配列が採用されました.
- ジェームズ・D・ワトソンの二重体ゲノムは2ヶ月間,7.4倍冗長に配列化されました.
主要な成果:
- 完全な二倍体ゲノム配列は2ヶ月で,従来の方法のコストの約1%で得られた.
- 10654のコーディングシーケンス変異を含む330万個の単一ヌクレオチドポリモルフィズム (SNP) の識別.
- 小規模な挿入/削除ポリモルフィズムとコピーの数の変化の正確な検出,大きな染色体セグメントの増減を含む.
- バクテリアのクローニングに関連したDNA損失を回避することによって,以前に未確認の遺伝子を含む,新しいヒト配列の取得.
結論:
- この研究は,次世代技術を用いた最初のゲノム配列解析であり,その速度,費用対効果,包括性を証明しています.
- 開発された技術は,以前の方法の限界を克服し,個々の遺伝子構成に関するより深い洞察を可能にします.
- この試験試験は,医療における将来のパーソナライズドゲノムシーケンシングイニシアチブのための舞台を設定します.
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