阿克拉西斯·科纳的基因组和发育转录组揭示了真核生物多细胞通路的深层起源
Sanea Sheikh1,2, Cheng-Jie Fu1,3, Matthew W Brown4,5
1Program in Systematic Biology, Department of Organismal Biology, Uppsala University, Uppsala, Sweden.
Nature communications
|November 25, 2024
概括
虫,早期的真核生物,在没有饥饿的情况下发展多细胞性. 阿克拉西斯科纳基因组揭示了新型基因,并表明基本的多细胞发育工具在真核生物历史的早期发展.
科学领域:
- 简介:真核生物的进化过程.
- 细胞生物学 细胞生物学
- 发育生物学是发展生物学.
背景情况:
- 类动物表现出聚合多细胞性 (AGM),这是早期真核生物中罕见的特征.
- 虫代表了一种独特的模型,用于研究多细胞的进化.
研究的目的:
- 测序Acrasis kona基因组并分析其跨发育阶段的转录组.
- 为了研究在Acrasis kona.中AGM背后的分子机制.
- 为了比较Acrasis kona中的AGM发展与Dictyostelium discoideum和动物发展.
主要方法:
- 在Acrasis kona.的基因组测序.
- 在发育前,中期和后阶段进行转录组分析.
- 基因组和转录基因组分析的比较.
主要成果:
- 阿克拉西斯科纳基因组含有新型基因,并表现出显著的水平基因转移.
- 多基因家族很普遍,它们编码了近一半的蛋白质组.
- A. kona 的发育在代谢上是活跃的,没有明显的饥饿,自或蛋白质酶上调.
- 信号传递,运动和细胞外基质路径与Dictyostelium和动物发育有相似之处.
结论:
- 饥饿不是AGM发展的先决条件.
- 多细胞发育的基本工具包很可能起源于真核生物进化的早期.
- 阿克拉西斯科纳为理解多细胞的演变提供了一个独特的模型.
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