保存和独特的蛋白质表达模式跨生殖阶段的转换在社会流血鸟女王
Alison McAfee1,2, Baptiste Martinet3, Kimberly Przybyla4
1Department of Biochemistry and Molecular Biology, Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada.
Molecular ecology
|November 4, 2024
概括
昆虫女王在交配后经历了显著的生理变化. 这项研究揭示了与四种羊类动物的发育和繁殖相关的保存蛋白质表达模式,突出了特定物种的免疫反应.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 比较生理学比较生理学
- 蛋白质组学是指蛋白质组学.
背景情况:
- 海门女王表现出了显著的生育能力和寿命,在交配和筑巢后经历了实质性的生理变化.
- 这些生殖阶段特定的生理变化的保存在多样化的女鸟生命历史上仍然不完全理解.
研究的目的:
- 为了比较分析四种女鸟的繁殖阶段的蛋白质差异:Apis mellifera,Bombus impatiens,Bombus terrestris和Lasius niger. 这四种女鸟的繁殖阶段的蛋白质差异.
- 为了确定与女王生殖过渡相关的保存和特定物种的蛋白质表达模式.
主要方法:
- 在处女,交配和建立女王生殖阶段对血淋巴 (Apis mellifera,Bombus impatiens,Bombus terrestris) 和全身同质物 (Lasius niger) 的蛋白质组分析.
- 利用比较蛋白质组学来识别差异表达的蛋白质和保存的模式.
主要成果:
- 在三种物种中观察到参与解剖和系统发育的蛋白质的保持上调,这些物种在建立巢穴期间被观察到,不包括Bombus terrestris.
- 维特洛金因,维特洛金因受体和免疫反应蛋白 (IRP) 30显示了与跨物种卵置相关的保存表达模式.
- 免疫蛋白,热冲击蛋白 (HSP) 和解毒/抗氧化酶的表达模式有显著的变化,表明了特定物种的适应.
结论:
- 保存的蛋白质形状表明,在女鸟女王的繁殖和发育中,它们有共同的生理途径.
- 蛋白质表达的特定物种变化,特别是免疫和应激反应蛋白质的变化,可能反映了对环境变化和病原体的不同选择性压力和适应能力.
相关概念视频
The Ratio of X Chromosome to Autosomes
8.4K
In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female...
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female...
8.4K
Position-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
Regulation of Expression Occurs at Multiple Steps
22.5K
Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
22.5K
Regulation of Expression at Multiple Steps
873
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...
873
Conservation of Protein Domains Over Different Proteins
10.8K
Protein domains are small structurally independent units that are part of a single amino acid chain. Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
10.8K


