相关实验视频
Updated: Jul 8, 2025

09:23
Lateral Root Inducible System in Arabidopsis and Maize
Published on: January 14, 2016
13.8K
表观遗传修饰调节了特定品种的根部发育和对小麦中气可用性的代谢适应
Hao Zhang1,2, Zhiyuan Jin3,4, Fa Cui5
1State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
Nature communications
|December 12, 2023
概括
表观遗传修饰,而不是DNA变化,影响小麦.
科学领域:
- 植物生物学 植物生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 农业科学 农业科学
背景情况:
- 提高农作物中使用效率 (NUE) 对可持续农业至关重要.
- 在作物NUE中表观遗传修饰的作用在很大程度上是未知的.
- 小麦品种表现出不同的NUE,这表明潜在的遗传或表观遗传差异.
研究的目的:
- 调查表观遗传修饰对小麦特定品种使用效率 (NUE) 的影响.
- 了解染色体景观和基因素修饰如何与代谢基因表达相关.
- 探索低气条件对表观遗传调节和植物适应的影响.
主要方法:
- 两种小麦品种 (KN9204和J411) 具有不同的NUE的染色质景观的比较分析.
- 评估基因素修饰 (H3K27ac,H3K27me3) 和它们与代谢基因表达的相关性.
- 利用基因脱乙酶抑制剂治疗和转基因方法来研究表观遗传调节.
主要成果:
- 代谢基因表达与基因组修饰变异有关,而不是DNA序列差异.
- 表观遗传修饰显示出不同的作物特异性模式,可能解释不同的农学特征.
- 低的条件会诱导特定的组 histone 修饰 (H3K27ac,H3K27me3) 促进根生长或吸收 (NRT2),这取决于种类.
结论:
- 表观遗传调节在调解作物特异性适应小麦低条件方面发挥着至关重要的作用.
- 基斯修饰是小麦中代谢和适应策略的关键调节者.
- 了解表观遗传机制可以指导育种策略,以提高使用效率.
相关概念视频
Overview of Metabolism
30.3K
Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
30.3K
Key Elements for Plant Nutrition
18.8K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.8K
Epigenetic Regulation
3.0K
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
X-chromosome...
3.0K
Transcription
147.0K
Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
147.0K
Plant Breeding and Biotechnology
18.9K
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.
18.9K
Primary and Secondary Growth in Roots and Shoots
57.2K
Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
57.2K

