通过转录组分析解读Cibotium barometz活性成分的生物合成途径和调节网络
Yuli Zhang1, Zhen Wang1, Minghui Li1
1School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
International journal of molecular sciences
|February 27, 2026
概括
这项研究分析了Cibotium barometz的转录组,揭示了参与生物活性化合物生物合成的关键基因和调节网络,特别是多糖和素. 发现为了解其药用特性提供了基础.
科学领域:
- 基因组学和生物信息学
- 植物分子生物学 植物分子生物学
- 传统中国医药 传统中国医药
背景情况:
- 锡波巴罗梅茨 (L.) 詹姆斯·斯梅尔 是一种在传统中医药中具有重要的药用价值的.
- 它的基因组和转录组资料,特别是关于生物活性化合物的基因组和转录组资料,仍未得到充分探索.
- 了解它的分子基础可以解锁新的治疗应用.
研究的目的:
- 在不同组织 (根,拉奇斯,皮纳) 中全面描述C. barometz的转录组.
- 确定关键基因和参与生物活性化合物的生物合成的调节网络.
- 为未来的机理学研究提供基础的转录组数据集.
主要方法:
- 集成的Illumina和PacBio测序技术用于转录基因组分析.
- 鉴定和表征单基因,转录因子 (TF),简单序列重复 (SSR) 和长非编码RNA (lncRNA).
- 对二次代谢途径的差异基因表达分析和丰富分析.
- 分析与多糖和素生物合成相关的基因表达模式.
主要成果:
- 成功地描述了转录组,并确定了成千上万根基因在根,拉奇斯和皮纳组织中.
- 描述了TFs,SSRs,lncRNAs和差异表达基因 (DEGs),突出了其在二次新陈代谢中的作用.
- 鉴定了多糖生物合成中的关键酶的特定组织表达,并特征了两个素通路 (H-素和G-素),并指出没有S-素.
- 揭示了特定基因表达 (例如,UXE,PGM,CHS,PAL,C4H) 和生物活性化合物积累之间的相关性,并阐明了涉及NAC和WRKY等TF的监管网络.
结论:
- 这项研究为C. barometz.生物活性化合物生物合成提供了第一个全面的转录基因洞察力.
- 确定了控制多糖和素生产的关键基因和调控机制.
- 这些发现为未来研究C. barometz.的药用特性和潜在应用奠定了基础.
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