时间过程转录组分析揭示了基因共同表达网络和可转移元素对棉花冷应激的反应
Yan Dai1, Jialiang Zhou1, Baohong Zhang2
1School of Life Sciences, Nantong University, Nantong, 226019, China.
BMC genomics
|March 13, 2025
概括
棉花 棉花 棉花 棉花
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:
- 寒冷压力严重影响棉花产量.
- 棉花耐寒性的遗传机制尚不清楚.
研究的目的:
- 在寒冷压力期间调查基因和可转移元素 (TE) 表达.
- 确定棉花中耐寒性的关键调节者.
主要方法:
- RNA测序 (RNA-seq) 和权重基因共同表达网络分析 (WGCNA).
- 在六个时间点 (0-24小时) 中对基因和TE表达的分析.
主要成果:
- 数以千计的差异表达基因 (DEGs) 和超过15,000个表达的TE被确定.
- 发现了特定时间的转录反应和局部调节热点.
- 确定了转录因子 (例如,MYB73,ERF017) 和植物激素 (乙烯,细胞因子) 作为关键参与者.
- 像LTR/Copia这样的TE家族可能会在寒冷压力下调节基因表达.
结论:
- 阐明了棉花冷应激反应的复杂调节网络.
- 通过繁殖确定了改善棉花耐寒性的潜在遗传标.
相关概念视频
Responses to Heat and Cold Stress
13.3K
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.
13.3K
Transcription
146.2K
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...
146.2K
Overview of Transposition and Recombination
15.1K
Transposons make up a significant part of genomes of various organisms. Therefore, it is believed that transposition played a major evolutionary role in speciation by changing genome sizes and modifying gene expression patterns. For example, in bacteria, transposition can lead to conferring antibiotic resistance. Movement of transposable elements within the genetic pool of pathogenic bacteria can aid in transfer of antibiotic-resistant genetic elements. In eukaryotes, transposons can carry out...
15.1K
Responses to Salt Stress
12.9K
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.
12.9K


