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Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
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代替スプライシングと気候に耐性のある作物

Yingying Tan1, Siying Ye1, Anqi Zhang1

  • 1Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, College of Agronomy and Biotechnology, Southwest University, Chongqing 400715, China.

Trends in genetics : TIG
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まとめ

アビオティックストレスが植物の成長に影響しますが,代替スプライシング (AS) は適応のための分子可塑性を提供します. ASの規制を理解することは,気候に耐性のある作物を育てるための鍵です.

キーワード:
アビオティックストレスとは代替スプライシング分子繁殖による分子繁殖です.sQTLTLは,sQTLは,sQTLは,sQTLは,sQTLは,sQTLは,sQTLは,sQTLは,sQTLはスプライシング・ファクタートランスクリプトーム transcriptome

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科学分野:

  • 植物生物学 植物生物学
  • 分子遺伝学 分子遺伝学
  • ゲノミクスゲノミクスとは

背景:

  • 干ばつや塩分などの非生物学的ストレスが,植物の成長と作物の収穫量を制限し,食糧安全保障を脅かしています.
  • 代替スプライシング (AS) は,植物における環境への迅速な適応のための分子可塑性を高める重要な遺伝子規制メカニズムである.

研究 の 目的:

  • 植物の代替スプライシングメカニズムと検出に関する現在の知識を統合する.
  • 様々な無生物的条件下でのストレス誘発によるASの調節を再検討する.
  • 気候に耐性のある作物の育成のためのAS操作の可能性を議論する.

主な方法:

  • 高通量シーケンシング技術を用いた全ゲノムプロファイリング.
  • ASのメカニズム,検出,ストレス反応に関する文献のまとめ.
  • ストレスシグナル伝達と調節に関与する遺伝子に対するASの影響の分析.

主要な成果:

  • アビオティックストレスが,植物の接合の景観を大きく変えてしまう.
  • ASは,転写因子や信号構成要素を含む,重要なストレス反応タンパク質をコードするトランスクリプトに影響します.
  • スプライシングの規制当局自身もASの対象となり,複雑な規制ネットワークが形成される.

結論:

  • 代替スプライシングは,植物が非生物的ストレスに適応するための重要なメカニズムです.
  • ターゲティングASは,ストレス耐性が向上した作物を開発するための有望な戦略です.
  • このアプローチは,ストレス耐性を超える遺伝的改善のパラダイムを提供します.