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
|February 19, 2026
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.
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.
関連する概念動画
Alternative RNA Splicing
25.4K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
25.4K
Alternative RNA Splicing
5.2K
5.2K
RNA Splicing
60.8K
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...
60.8K
Plant Breeding and Biotechnology
21.9K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
21.9K
Adaptations that Reduce Water Loss
28.3K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
28.3K
Transgenic Plants
8.8K
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
8.8K


