微RNA介导的水果形态的荷尔蒙控制
Kanghua Du1, Da Zhang1, Weiwu Lv1
1Institute of Tropical Eco-Agriculture Science, Yunnan Academy of Agricultural Sciences, Chuxiong 651300, China.
Plants (Basel, Switzerland)
|January 10, 2026
概括
微RNAs (miRNAs) 是园艺作物水果发育的关键表观遗传调节者. 本综述将miRNA网络与激素和转录因子进行合成,强调它们在适应气候变化的作用.
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.
- 园艺科学 园艺科学
背景情况:
- 果实形态发生是一个复杂的过程,受遗传学,荷尔蒙和环境的影响.
- 微RNAs (miRNAs) 正在成为植物发育中的关键表观遗传调节剂.
- 与模型植物相比,园艺作物的miRNA作用是复杂和独特的.
研究的目的:
- 在园艺作物中的水果发育中审查保存的miRNA及其调节网络.
- 为了合成miRNAs,激素和转录因子在水果形态发生中的相互作用.
- 探索miRNA在植物适应环境压力,特别是温度方面的作用.
主要方法:
- 文献综述综合了关于园艺作物的miRNAs最近的研究.
- 涉及miRNAs,植物激素和转录因子的调节网络的合成.
- 对温度压力和发育可塑性的miRNA介导反应的分析.
主要成果:
- 保存的miRNAs在各种园艺物种的水果发育和形态发生中发挥着重要作用.
- miRNA网络与激素信号和转录因子相互作用,以控制水果的特征.
- 植物miRNA在温度压力下表现出双重作用,调解适应性和可塑性.
结论:
- 通过miRNA介导的调节是一种复杂但有前途的表观遗传机制,用于改善园艺作物.
- 了解这些网络对于开发适应气候变化的作物至关重要.
- 未来的研究应该专注于利用miRNA途径在不断变化的气候下改善作物.
相关概念视频
01:22MicroRNAs
23.9K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...
23.9K
01:22MicroRNAs
3.8K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.8K
02:19Morphogenesis
30.2K
Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
30.2K
01:58Fruit Development, Structure, and Function
24.9K
Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
24.9K
01:23Regulation of Expression at Multiple Steps
1.3K
The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
1.3K
01:23Transcriptional Regulation: Riboswitches
559
Riboswitches are RNA elements that regulate gene expression by altering their secondary structures in response to specific effector molecules. These elements, located in the leader regions of certain mRNAs, act as transcriptional regulators by toggling between alternative conformations to control downstream gene expression. Riboswitch-mediated regulation is a precise mechanism for modulating biosynthetic pathways, as exemplified by the riboflavin biosynthesis pathway in Bacillus...
559