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関連する概念動画

CRISPR/Cas9 Genome Editing01:28

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The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
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ゲノム編集による作物の改良のための定量的な特性の変異

Daniel Rodríguez-Leal1, Zachary H Lemmon1, Jarrett Man2

  • 1Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.

Cell
|September 19, 2017
PubMed
まとめ

植物プロモーターのCRISPR/Cas9ゲノム編集は作物育種のための新しい遺伝的多様性を生み出します この方法は果実のサイズや 植物の構造などの特徴を 素早く改善し 収穫量を増やします

キーワード:
CRISPR/Cas9についてQTL について繁殖するcis 規制する家畜化について花が咲いているフルーツのサイズ花束定量的な変化トマト

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科学分野:

  • 植物遺伝学と育種
  • ゲノム編集技術
  • 農業科学

背景:

  • 農作物の収穫の改善は 将来の食糧安全保障に不可欠です
  • 伝統的な植物育種は 遺伝子調節領域における 自然変異のゆっくりとした選択に依存しています
  • CRISPR/Cas9のゲノム編集は 遺伝子改変のための強力なツールです

研究 の 目的:

  • CRISPR/Cas9プロモーターの編集が作物における有益な定量的な特性の変化を生成することを実証する.
  • 新しいシス調節性アレルの影響を評価するための迅速な方法を開発する.
  • 収穫の要素を微調整することで作物の生産性を高める.

主な方法:

  • CRISPR/Cas9を用いてトマトの遺伝子プロモーターを編集し,多様なシス調節性アレルを作成した.
  • 遺伝的スキームを利用して 異性体の機能喪失の変異体で 世代を超えたCas9の活性化を行いました
  • 果実のサイズ,花束の枝分かれ,植物構造に対する評価された現象的影響.

主要な成果:

  • 多様なプロモーター・バリエーションを生み出し 繁殖に有益な量的な変化をもたらした.
  • 特定のプロモーターの編集を生産性特性の重要な変化と成功裏に結びつけました.
  • トランスゲンフリー植物における新しい有益なアレルの迅速な選択と固定を可能にします.

結論:

  • CRISPR/Cas9プロモーター編集は作物育種における新しい遺伝子変異を生成するための効果的な戦略です.
  • 開発された方法は,収穫の向上のために有益なアレルの評価と選択を加速します.
  • このアプローチは,遺伝子調節と定量的な特徴制御におけるその役割を理解するための基礎を提供します.