植物应激反应中的替代拼接:在作物改善方面潜在的应用
Wai Keat Toh1, Hann Ling Wong1,2, Mee-Len Chye3,4,5
1Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900, Kampar, Perak, Malaysia.
Planta
|November 1, 2025
概括
替代拼接 (AS) 在压力下使植物转录组多样化,为作物弹性提供了潜力. 利用AS变种可以在气候变化中提高粮食安全和生产力.
科学领域:
- 植物生物学 植物生物学
- 基因组学就是基因组学.
- 分子生物学分子生物学
背景情况:
- 替代拼接 (AS) 增加了植物的转录组多样性,特别是在应激后.
- 可以利用AS转录来开发更有弹性的作物.
研究的目的:
- 讨论最近关于植物中与压力相关的AS的发现.
- 探索AS变种在作物改善方面的潜力.
主要方法:
- 利用先进的测序技术,如长时间读取的单分子实时和高通量RNA测序.
- 分析植物数据库以寻找阿拉比多普西斯和大米等物种的应激反应性AS事件.
主要成果:
- 在遭受生物和非生物压力 (热,寒,干旱,,盐) 的植物中经常观察到替代拼接.
- 内部保留是阿拉比多普西斯和大米等植物中最常见的AS事件.
- 过度表达特定的拼接变体可以在转基因植物中提供应激保护.
结论:
- 替代拼接允许植物通过多样化它们的转录基因和蛋白质基因景观来适应和增强压力保护.
- 利用AS变异对开发适应气候变化的作物,提高生产率和确保粮食安全具有重大潜力.
相关概念视频
Alternative RNA Splicing
24.6K
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...
24.6K
Plant Breeding and Biotechnology
21.4K
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.
21.4K
RNA Splicing
60.3K
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...
60.3K
Plant Tissue Culture
40.1K
Plant tissue culture is widely used in both primary and applied science. Applications range from plant development studies to functional gene studies, crop improvement, commercial micropropagation, virus elimination, and conservation of rare species.
40.1K
Transgenic Plants
8.4K
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...
8.4K
Responses to Heat and Cold Stress
14.6K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
14.6K


