在亚洲大米 (Oryza sativa cv. 尼邦巴雷 (Nipponbare) 的叶子已经脱落
Sean M Robertson1, Olivia Wilkins1
1Department of Biological Sciences, University of Manitoba, 50 Sifton Road, Winnipeg, R3T 2N2, Canada.
The Plant journal : for cell and molecular biology
|June 30, 2023
概括
植物叶表现出空间基因表达模式,揭示了控制专门功能的调节模块. 这项研究将这些模块映射到大米 (Oryza sativa) 叶中,揭示了驱动功能专业化的关键转录因子.
科学领域:
- 植物分子生物学 植物分子生物学
- 文字转录学 (Transcriptomics) 是一个学科.
- 系统生物学 系统生物学
背景情况:
- 植物转录组概况在所有组织层面,包括器官内部都是异质的.
- 植物组织内基因表达的空间异质性与非统一的生物过程有关.
- 植物空间基因表达异质性背后的调节机制在很大程度上是未知的.
研究的目的:
- 确定负责不同区域的Oryza sativa (大米) 叶的功能专业化的监管模块.
- 阐明转录因子和基因网络,这些转录因子和基因网络在米叶中建立和维持空间基因表达模式.
主要方法:
- 利用转录组数据,转录因子结合动机和基因调控网络预测算法.
- 创建了一个全球基因调节网络,用于*Oryza sativa* cv. 尼邦的叶子. 裸的叶子.
- 为MYB和bZIP/bHLH转录因子家族构建了有针对性的监管网络.
主要成果:
- 识别了六个不同的调节模块,它们在叶的不同部位中起作用.
- 这些模块为参与光合作用和环境传感等空间相关过程的基因进行了丰富.
- 全球网络中超过86.9%的基因是由仅有五个转录因子家族的成员调节的.
结论:
- 空间转录组分析提供了对支持植物叶子内功能专业化的调节机制的洞察.
- 少数转录因子家族在调节大米叶的空间基因表达方面发挥着重要作用.
- 这项研究为未来的植物空间和单细胞转录组研究奠定了基础,包括应激反应研究.
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