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在染色体水平的基因组和多omics分析Hedyotis扩散提供了新的洞察力,形虫生物合成途径

Pengyu Chen^1,2, Zhuang Huang^1,2, Mingzhu Yin³

¹Hubei Shizhen Laboratory, Wuhan, China.

Frontiers in plant science

|July 4, 2025

概括

这项研究为Hedyotis diffusa提供了第一个端粒对端粒基因组组合,揭示了最近的全基因组复制. 它确定了参与虹膜体生物合成的关键基因,为代谢工程应用铺平了道路.

科学领域:

基因组学就是基因组学.
植物生物学植物生物学
药用化学医学化学

背景情况:

花是一种药用草本,以其生物活性花化合物而闻名.
在Hedyotis diffusa中,虹膜体生物合成的分子基础尚不清楚.
有限的知识阻碍了Hedyotis diffusa的生物技术和制药应用.

研究的目的:

为了生成一个高质量的基因组组装Hedyotis diffusa.
为了研究Hedyotis diffusa.的进化历史和基因组特征.
为了识别参与虹膜体生物合成和后修饰的基因.

主要方法:

端粒到端粒 (T2T) 染色体尺度的基因组组合.
遗传学和比较基因组分析.
对MEP/MVA和虹膜细胞生物合成途径基因的基因表达概况.
基因树聚类和表达分析用于候选基因识别.

主要成果:

产生了一个~482.30 Mb的T2T基因组组合,固定在16个染色体上.
最近发现了一种特定物种的全基因组复制 (WGD) 事件.
欧洲议会/MVA通路基因表现出高根性表达;虹膜蛋白生物合成基因显示出组织特异性模式.
候选基因LAMT (Hd_18862) 和CYP71D55同类基因 (Hd_18118,Hd_18119) 参与了虹膜体的后修饰.

结论:

这项研究为Hedyotis diffusa提供了第一个T2T基因组资源,详细介绍了其WGD和进化路径.
组织特异性基因表达模式表明虹膜体生产的空间调节.
鉴定LAMT和CYP71D55同类物有助于更好地理解虹膜体的结构多样性.
基因组洞察力为探索虹膜体生物合成和代谢工程奠定了基础.

关键词:

黑底 (Hedyotis diffusa) 是一个扩散的植物.基因组基因组是基因组的组成部分.虹膜体的生物合成途径.代谢组代谢组的代谢转录组 (transcriptome) 是一个转录组.

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