在植物中建立和维护NRT2.1个体间的变异性
Charlotte Lecuyer1, Alexandre Vettor1, Cécile Fizames1
1IPSiM, Univ Montpellier, CNRS, INRAE, Institut Agro, Montpellier, France.
PLoS genetics
|December 17, 2025
概括
单个植物基因表达在幼苗中的变异性,特别是对于酸盐输送物NRT2.1,会影响根生长和营养吸收. 这种碳/平衡协调是早期建立和维持的,但不是遗传的.
科学领域:
- 植物生物学 植物生物学
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- 基因相同的植物表现出形态和基因表达的变异,即使在均的环境中.
- 了解多细胞生物体中个体间基因表达的变异性仍然是一个挑战.
- 高亲和度酸盐输送基因NRT2.1作为显著个体间转录变异性的模型.
研究的目的:
- 描述单个植物中基因表达变异性的建立和维持.
- 研究NRT2.1表达变异对植物生长和酸盐吸收的表型影响.
- 探索碳/平衡基因的协调,并确定潜在的调节因素.
主要方法:
- 利用实时成像和转录学来分析单个植物中的NRT2.1表达变异性.
- 在三周的时间里,跟踪了来自年轻幼苗的基因表达差异.
- 进行了NRT2.1表达与其他基因功能,包括光合作用相关途径之间的相关性分析.
主要成果:
- 在年轻的苗木中确立了NRT2.1表达变异性,并持续至少三周.
- 一代人的NRT2.1表达水平不能预测下一代人的表达.
- 在NRT2.1中的表达差异与根生长和酸盐吸收的表型变化相关.
- 与光合作用有关的基因在与NRT2.1共同表达的基因中被丰富,表明协调的碳/平衡.
结论:
- 碳/平衡基因的全球协调在幼苗发育的早期建立,并随着时间的推移保持,尽管在每个植物的不同水平.
- 这项研究强调了单一植物分析的重要性,以揭示在聚合研究中掩盖的基因表达机制.
- 转录因子UNE10被提议作为NRT2.1.的调节进一步调查的候选者.
相关概念视频
Short-distance Transport of Resources
17.4K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
17.4K
Transcription
154.8K
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...
154.8K
Key Elements for Plant Nutrition
23.9K
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...
23.9K
Cell Signaling in Plants
6.1K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
6.1K
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
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


