核受体FTZ-F1通过调节迁徙的染过程来控制虫
Yichao Zhang1,2, Hongjing Li1,2,3, Xiaoman Liu1,2,3
1Institute of Applied Biology, Shanxi University, Taiyuan 030006, China.
Insects
|April 26, 2024
概括
虫中的两个Fushi-tarazu因子1 (FTZ-F1) 基因对于变至关重要. 同时沉默这些基因可以防止脱氧,导致死亡和皮质变厚,突出显示它们在昆虫发育中的作用.
科学领域:
- 分子生物学分子生物学
- 昆虫学 昆虫学是一门学科.
- 发展生物学 发展生物学
背景情况:
- 富士-塔拉祖因子1 (FTZ-F1) 是核受体转录因子,对昆虫变至关重要.
- 自由贸易区-F1在迁徙 *Locusta migratoria* 变过程中的特定作用仍然基本上没有被描述.
研究的目的:
- 为了识别和描述*Locusta migratoria*中的FTZ-F1转录.
- 阐明这些FTZ-F1基因在虫的化和生化过程中的功能.
主要方法:
- 在L. migratoria*中识别了两个FTZ-F1转录 (*LmFTZ-F1-X1*和 *LmFTZ-F1-X2*).
- 使用逆转录定量聚合酶链反应 (RT-qPCR) 进行表达分析.
- 通过RNA干扰 (RNAi) 的功能分析,针对*LmFTZ-F1-X1*和*LmFTZ-F1-X2*.
- 使用血素-氨酸和丁染色进行皮质分析.
- 使用RNA测序 (RNA-seq) 进行基因表达分析.
主要成果:
- *LmFTZ-F1-X1*和*LmFTZ-F1-X2*在皮肤上表达的高度.
- 两种*LmFTZ-F1*基因的同时沉默,在第三阶段停止了的发育,导致死亡.
- 沉默导致皮肤上加厚的皮肤和参与皮肤形成,基因合成和细胞染色体P450活性的基因的差异表达.
结论:
- *LmFTZ-F1-X1*和*LmFTZ-F1-X2*在虫生化中发挥着重要的,可能是多余的作用.
- 这些基因可能通过控制皮质合成和完整性至关重要的基因的表达来调节变.
相关概念视频
01:31Transducer Mechanism: Nuclear Receptors
1.3K
Nuclear receptors, or NRs, are unique transcription factors that regulate gene transcription and affect the cellular pathways involved in reproduction, development, or metabolism. Their ability to be stimulated by small lipophilic ligands and control vital cellular processes makes them ideal drug targets. Nearly 10-15% of currently prescribed drugs target these receptors.
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
1.3K
02:23Master Transcription Regulators
6.9K
Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
6.9K
02:02Cis-regulatory Sequences
9.9K
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
9.9K
02:35Chromatin Position Affects Gene Expression
23.3K
Chromatin is the massive complex of DNA and proteins packaged inside the nucleus. The complexity of chromatin folding and how it is packaged inside the nucleus greatly influences access to genetic information. Generally, the nucleus' periphery is considered transcriptionally repressive, while the cell's interior is considered a transcriptionally active area.
Topologically Associated Domains (TADs)
The 3-dimensional positioning of chromatin in the nucleus influences the...
Topologically Associated Domains (TADs)
The 3-dimensional positioning of chromatin in the nucleus influences the...
23.3K
02:32Position-effect Variegation
6.3K
In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
6.3K
02:04Co-activators and Co-repressors
7.3K
Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
7.3K