转录组分析揭示了小麦 (Triticum aestivum L.) 盐耐受性的分子机制
Shi-Ze Wang1, Shuang Wang1, Yun Li1
1College of Agronomy and Biotechnology/Hebei Key Laboratory of Crop Stress Biology, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China.
Genomics
|September 25, 2025
概括
了解小麦盐耐受性需要识别关键基因. 这项研究分析了在盐应激下两种小麦品种的基因表达,揭示了886种潜在的盐耐受性基因以及对改善育种的分子机制的见解.
科学领域:
- 植物科学 植物科学
- 遗传学 是一个遗传学.
- 农业科学 农业科学
背景情况:
- 土壤盐度是影响小麦 (Triticum aestivum L.) 增长和产量的主要非生物压力.
- 识别盐分耐受性的基因对于开发耐盐小麦品种至关重要.
研究的目的:
- 通过分析时间转录基因变化,研究小麦盐耐受性的分子机制.
- 在应对盐压力时识别差异表达基因 (DEG) 和替代拼接事件.
主要方法:
- 小麦苗 (Bima4和Xiaoyan22) 受到盐应激 (1.0标准度人造海水).
- 时间转录组分析在六个时间点 (0,1,3,6,12,24小时) 进行.
- 进行了基因本体学,转录因子丰富和差异替代拼接分析.
主要成果:
- 在Bima4发现了6688个DEG,在Xiaoyan22发现了11842个DEG.
- 耐盐的Xiaoyan22在3小时和24小时显示出更多上调的基因,而对盐敏感的Bima4在6小时显示出更多的基因.
- 确定了886个与盐耐受性相关的基因,以及两种品种的差异性替代拼接事件.
结论:
- 这项研究提供了对小麦对盐应激反应的分子反应的全面了解.
- 已识别的基因和途径为通过育种增强小麦盐耐受性提供了基础.
- 基因表达和替代拼接的变异有助于小麦品种之间的盐分耐受性差异.
更多相关视频
08:36Development of Targeting Induced Local Lesions IN Genomes TILLING Populations in Small Grain Crops by Ethyl Methanesulfonate Mutagenesis
Published on: July 16, 2019
12.2K
08:27Analysis of Effect of Compound Salt Stress on Seed Germination and Salt Tolerance Analysis of Pepper Capsicum annuum L.
Published on: November 30, 2022
5.2K
相关概念视频
02:02Responses to Salt Stress
14.5K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
14.5K
01:10Transcription
155.3K
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...
155.3K
02:45Responses to Heat and Cold Stress
14.7K
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.
14.7K
01:56Riboswitches
9.6K
Riboswitches are non-coding mRNA domains that regulate the transcription and translation of downstream genes without the help of proteins. Riboswitches bind directly to a metabolite and can form unique stem-loop or hairpin structures in response to the amount of the metabolite present. They have two distinct regions – a metabolite-binding aptamer and an expression platform.
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
9.6K