为了揭开转录组动力学和调节模块在母/子接口开发玉米核的转录组动力学和调节模块.
Juan He1, Jincang Wang1, Zhiyong Zhang1
1School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230027, China.
The Plant journal : for cell and molecular biology
|March 29, 2024
概括
这项研究揭示了控制玉米核中的营养转移的关键基因网络. 我们确定了调节糖,氨基酸和离子运输的关键转录因子,用于种子发育.
科学领域:
- 植物生物学 植物生物学
- 分子遗传学 分子遗传学
- 文字转录学 (Transcriptomics) 是一个学科.
背景情况:
- 玉米核的基底区域对于从母植物到发育中的种子的营养物质运输至关重要.
- 在这种母/子界面上的转录组动态尚不清楚.
- 了解这些动态对于改善种子发育和产量至关重要.
研究的目的:
- 为了研究玉米核的基底母/子接口的转录组动态.
- 为了确定关键的基因和监管网络参与营养转移在内核发展期间.
- 探索特定转录因子在调节基底特异性转运体中的功能.
主要方法:
- 基底和上核区域的高时间分辨率RNA测序 (授粉后4-32天).
- 基因本体学 (GO) 术语分析和重量基因同表达网络分析 (WGCNA) 在基底区域高度表达的基因上.
- 全基因组DNA亲和力净化测序和促进子转换活化试验用于研究转录因子 (TF) 功能.
主要成果:
- 确定了五个MADS-box转录因子作为早期基底区域的关键调节器 (枢纽).
- 发现了与填充阶段基底区域的转录调节和载体相关的GO术语的显著丰富.
- 证明了三个枢纽TFs调节10个基底特异的输送基因参与营养转移 (糖,氨基酸,离子).
结论:
- 提供了对玉米核母/子界面的转录基因动力学和调控模块的新见解.
- 突出了已识别的MADS-boxTFs在玉米核发育中的潜在作用,并与大米和阿拉比多普西斯的研究进行了平行.
- 表明这些TF是营养载体的关键调节者,对种子的发育和功能至关重要.
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