メタゲノムシーケンシングによって確立されたヒト腸内微生物の遺伝子カタログ
Junjie Qin1, Ruiqiang Li, Jeroen Raes
1BGI-Shenzhen, Shenzhen 518083, China.
Nature
|March 6, 2010
まとめ
腸内微生物を理解することは,人間の健康の鍵です. この研究では,ヨーロッパ人の330万個の微生物遺伝子を配列化し,主に細菌の遺伝子を持つ共通のコア腸内微生物群を明らかにしました.
科学分野:
- 微生物学 微生物学とは
- ゲノミクスゲノミクスとは
- 人体健康 人体健康 人体健康
背景:
- 腸内微生物の遺伝的可能性を評価することは,ヒトの健康への影響を理解するために極めて重要です.
- 人間の腸内微生物群は,全体的な健康に重要な役割を果たします.
研究 の 目的:
- ヨーロッパ人のコホートにおける腸内微生物群の遺伝的可能性を特徴づける.
- 最小の腸内メタゲノムと最小の腸内細菌ゲノムを定義する.
主な方法:
- 124人の欧州人からの糞便サンプルをイルミナベースのメタゲノムシーケンシング.
- 330万の非冗長な微生物遺伝子の組み立てと特徴付け.
- 576.7ギガベースの配列データを分析した.
主要な成果:
- 330万個の微生物遺伝子の包括的な遺伝子セットが生成され,ヒトの遺伝子補充よりも大幅に大きくなりました.
- コーホートにおける有病な微生物遺伝子のほとんどは特定され,おそらく腸内微生物遺伝子の大きな割合を表している.
- 特定された遺伝子の99%以上は細菌性であり,コホートあたり1,000〜1,150のバクテリア種,個体あたり少なくとも160のバクテリア種が共通するコア微生物群を示しています.
結論:
- この研究は,ヒトの腸内微生物群の遺伝子組成に深い洞察を与えています.
- コホート内の個体間で,微生物の遺伝子と種の重要な重複が存在する.
- 最小腸メタゲノムと細菌ゲノムが定義され,将来の研究のためのベースラインを提供しました.
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