对320种园艺和其他植物的核因子-Y转录因子进行大规模比较分析
Kai Luo1, Mingchao Li1, Man Liu1
1School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China.
Horticulture research
|March 2, 2026
概括
核因子Y (NF-Y) 基因对植物发育至关重要,起源于花植物. 它们的扩张在植物谱系中各不相同,而血管精子表现出多样化的重复模式. NF-Y基因表现出功能多功能性,并与其他转录因子相互作用.
科学领域:
- 植物分子生物学 植物分子生物学
- 进化基因组学 进化基因组学
- 转录因子研究 转录因子研究
背景情况:
- 核因子Y (NF-Y) 是一种进化保存的异构三体转录因子家族,对植物生长和发育至关重要.
- 以前对NF-Y基因的研究主要集中在单个物种上,在主要植物系中留下大规模的进化模式未被充分探索.
研究的目的:
- 进行全面的,大规模的研究,研究NF-Y基因的进化动态和扩展模式,跨越多种植物种类.
- 探索植物NF-Y基因的功能多功能性和调节相互作用,特别是在Arabidopsis thaliana.
主要方法:
- 从320种植物中系统识别了15392个非冗余NF-Y基因.
- 在植物谱系中分析基因复制模式 (分散,全基因组/细分,合).
- 保存的动图分析,在Arabidopsis thaliana中转录基因分析,以及NF-Y相互作用网络的构建.
主要成果:
- NF-Y基因家族起源于植物,其扩张机制在植物群体之间有所不同 (基底系中分散的重复,芽种中多样化的重复).
- 在子家族内确定了保存的动图,尽管在更高的植物中观察到动图损失,这表明进化序列的变化.
- 阿拉比多普西斯莉亚的NF-Y基因在各种条件下表现出功能多功能性,并被发现与其他转录因子相互作用,特别是Myb和AP2家族.
结论:
- 这项研究提供了从基底藻到园艺植物的NF-Y基因演变的首次广泛分析,揭示了谱系特定的扩张动态.
- 这些发现为NF-Y基因的功能作用和调节网络提供了新的见解,有助于我们了解植物发育和应激反应.
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