全长度转录基因组测序为Glechoma longituba中黄类生物合成的复杂性提供了新的见解
Tingyu Shan1,2, Jingyao Xu1,2, Xinxin Zhong1,2
1Anhui University of Chinese Medicine and Anhui Academy of Chinese Medicine, Hefei, China.
Physiologia plantarum
|December 26, 2023
概括
这项研究解码了Glechoma longituba的完整转录组,揭示了黄类生物合成中的关键基因. 这项研究为这种植物的药用特性提供了关键的分子洞察力.
科学领域:
- 植物基因组学 植物基因组学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 长管 (Glechoma longituba) 传统上用于尿病和胆病.
- 黄类是G. longituba中主要的生物活性化合物,但它们的生物合成知之甚少.
- 有限的研究存在于G. longituba.中黄酸生产的分子机制.
研究的目的:
- 为了构建G. longituba. 的完整的转录组.
- 为了识别参与黄类生物合成途径的基因.
- 为了解G. longituba的药用特性提供分子资源.
主要方法:
- 单分子实时测序 (SMRT) 和下一代测序 (NGS).
- 转录组组合和功能注释.
- 差异基因表达分析和皮尔森相关性分析.
- 生物信息学分析关键酶异型 (黄3-氧化酶和黄醇合成酶).
- 定量实时PCR (qRT-PCR) 验证.量化实时PCR验证.
主要成果:
- 产生了404,648个非冗余转录,包括编码序列,SSR,lncRNA和编码RNA.
- 确定了55种与黄类生物合成途径相关的全长异型.
- 在关键基因表达和黄类代谢产物之间发现了显著的正相关性.
- 通过qRT-PCR验证了12个与黄类相关的关键酶基因的表达.
结论:
- 这项研究介绍了G. longituba. 的第一个完整的转录组.
- 在黄类生物合成中确定了关键的分子参与者.
- 提供了有价值的基因组资源,用于未来研究G. longituba的治疗潜力.
相关概念视频
02:32Exon Recombination
The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon has three reading...
Exon shuffling follows “splice frame rules.” Each exon has three reading...
02:11Reporter Genes
Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
Commonly used reporter...
Commonly used reporter...