相关实验视频
Updated: Jul 5, 2025

10:43
Dissection of Larval Zebrafish Gonadal Tissue
Published on: April 26, 2017
10.4K
对卵巢和丸的比较转录组分析揭示了斑马鱼的性别偏差基因和通路
Cong Li1, Rui Cai2, Wenhui Shi2
1Department of Hematology, The Second Affiliated Hospital of Anhui Medical University, Hefei 230032, China.
Gene
|January 19, 2024
概括
这项研究使用转录组测序确定了斑马鱼性腺发育中的关键性别偏差基因和途径. 这些发现揭示了性二态的关键分子参与者,并为进一步研究提供了资源.
科学领域:
- 基因组学和发育生物学
- 进行比较基因组学.
- 模型生物研究 模型生物研究
背景情况:
- 斑马鱼 (Danio rerio) 是研究脊椎动物发育的重要模型生物.
- 了解斑马鱼的生殖腺发育和分化的遗传调节至关重要,但不完全理解.
- 识别性别偏见的基因和途径对于阐明性二态化至关重要.
研究的目的:
- 为了确定斑马鱼丸和卵巢之间的差异表达基因 (DEGs).
- 阐明参与性腺发育和分化的性别偏差基因和途径.
- 为未来关于斑马鱼性生物学研究提供全面的转录基因资源.
主要方法:
- 成年斑马鱼 (卵巢和丸) 的淋巴细胞转录组测序.
- 对转录组进行比较分析,以识别差异表达基因 (DEG).
- 对DEGs的功能丰富分析和对选定基因的定量实时PCR (qRT-PCR) 验证.
主要成果:
- 转录组测序从卵巢和丸cDNA库中产生了数百万个清洁的读数.
- 与丸相比,在卵巢中发现了大量的DEG,其中3,604个是上调的,11371个是下调的.
- 独家表达分析揭示了428个女性特异性和3,516个男性特异性基因,这些基因在卵细胞成熟和细胞因子-细胞因子受体相互作用等途径中得到丰富.
- 对14种性别偏差DEG的验证证实了它们的差异表达和与关键发育途径的关联.
结论:
- 这项研究为斑马鱼性腺发育提供了有价值的转录组数据集.
- 已识别的性别偏差基因和途径为斑马鱼的性二态的分子机制提供了洞察力.
- 这些发现为进一步研究这种模型生物体中性别决定和分化的遗传控制提供了基础.
相关概念视频
The Ratio of X Chromosome to Autosomes
8.5K
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...
8.5K
Genetic Screens
4.9K
Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
4.9K

