在玉米中,CUC基因控制着干细胞维护和器官启动的边界域
Wanshun Zhong1,2, Liang Dong2, Guangzhong Zhang1
1Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China.
The New phytologist
|August 5, 2025
概括
玉米 CUP-SHAPED COTYLEDON (CUC) 基因对于植物发育至关重要. 这些基因控制着叶子的分离,叶子系统的维护和器官的启动,影响作物产量.
科学领域:
- 植物发育生物学 植物发育生物学
- 分子遗传学 分子遗传学
- 农作物科学 农作物科学
背景情况:
- 侧面器官启动对于植物生长和作物产量至关重要.
- 杯状尾 (CUC) 转录因子调节尾鸟的器官生成.
- 与玉米一样,CUC基因在单种植物的发展中的作用基本上是未知的.
研究的目的:
- 为了识别和描述玉米的CUC基因 (ZmCUC1,ZmCUC2,ZmCUC3).
- 研究ZmCUC基因在玉米发育中的功能.
- 了解CUC基因在美里系统维护和器官启动中的调节作用.
主要方法:
- 在玉米中基因识别和基因表达分析.
- 使用遗传方法对ZmCUC基因的功能分析.
- 对基因相互作用和调控途径的研究.
主要成果:
- 鉴定了三个玉米CUC基因 (ZmCUC1,ZmCUC2,ZmCUC3),发现它们在边界域中表达.
- 这些基因冗余地控制了叶子分离,射击角髓系统 (SAM) 维护和骨髓系统 (AM) 启动.
- ZmCUC1和ZmCUC2主要调节叶边缘分离和AM启动,而ZmCUC3在边界组织形成中起着更广泛的作用.
- 这三个ZmCUC基因都通过调节包括MALE STERILE CONVERTED ANTHER1.1在内的途径来维持系统活动和叶子启动.
结论:
- CUC基因对于玉米中多样化的发射边界域和干系的发展至关重要.
- 这些基因在平衡器官发育和分化方面发挥着关键作用.
- ZmCUC基因对于水系维护至关重要,并有助于作物产量潜力.
更多相关视频
06:11Author Spotlight: Improved Methods for Preparing Transverse Sections and Unrolled Whole Mounts of Maize Leaf Primordia for Fluorescence and Confocal Imaging
Published on: September 22, 2023
3.4K
12:15In Situ Hybridization for the Precise Localization of Transcripts in Plants
Published on: November 23, 2011
51.6K
相关概念视频
C4 Pathway and CAM
46.2K
Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...
C4 Pathway
The C4 pathway is used by plants such as...
46.2K
Primary and Secondary Growth in Roots and Shoots
58.0K
Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
58.0K
Morphogenesis
28.8K
Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
28.8K
Introduction to Seed Plants
62.8K
Most plants are seed plants—characterized by seeds, pollen, and reduced gametophytes. Seed plants include gymnosperms and angiosperms.
62.8K
Role of Microtubules in Cell Wall Deposition
2.6K
Microtubules are small hollow tubes in eukaryotic cells. The cell wall microtubules are polymerized dimers of two globular proteins, α-tubulin and β-tubulin, two globular proteins. With a diameter of about 25 nm, microtubules are the widest components of the cytoskeleton. They help the cell resist compression and provide a track along which vesicles move through the cell or pull replicated chromosomes to opposite ends of a dividing cell. Microtubules go through quick cycles of...
2.6K
Meristems and Plant Growth
46.9K
Plants grow throughout their lives; this is called indeterminate growth, and it distinguishes plants from most animals. Although certain parts of plants stop growing (e.g., leaves and flowers), others grow continuously—like roots and stems.
46.9K
