一个AP2/ERF转录因子GhERF109对棉花的植物生长和发育产生负面调节
Huiyun Shi1, Ghulam Qanmber2, Zuoren Yang3
1State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan 455000, China; National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
Plant science : an international journal of experimental plant biology
|December 22, 2024
概括
棉花 棉花 棉花 棉花
科学领域:
- 植物生物学 植物生物学
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- AP2/乙烯反应因子 (ERF) 家族包括植物特异性转录因子 (TF),对生长和发育至关重要.
- 在棉花发展方面,ERF TFs的具体作用尚未得到充分理解.
- 了解这些作用是改善棉花种植和纤维生产的关键.
研究的目的:
- 确定和描述GhERF109的功能,这是棉花 (Gossypium hirsutum) 中的ERF转录因子.
- 调查 GhERF109 对棉花植物结构和生长的影响.
- 阐明GhERF109调节植物发育的分子机制.
主要方法:
- 在不同的棉花品种中识别和表达GhERF109的分析.
- 在Arabidopsis thaliana中GhERF109的异质表达,以评估其对植物形态学的影响.
- 在棉花和随后的RNA测序 (RNA-seq) 分析中对GhERF109的基因沉默.
- 在GhERF109-沉默棉花植物中对差异表达基因 (DEGs) 的分析.
主要成果:
- GhERF109,一个核局部化的ERF,在ZM24和pag1.1棉花品种之间显示了差异表达.
- 在Arabidopsis中过度表达导致了植物高度,根长度和长度的减少.
- 在棉花中抑制GhERF109通过促进干细胞延长,显著增加了植物的高度.
- 在沉默植物中,RNA-seq识别了4123个DEG,这些基因与辅酶反应,细胞扩张,黄类生物合成和VLCFA通路相关.
- GhERF109在棉花中的过度表达导致了高度降低的紧型植物类型.
结论:
- GhERF109作为棉花植物生长的负调节剂,抑制高度和促进紧的表型.
- GhERF109集成auxin和其他信号通路来控制细胞扩张和植物发育.
- GhERF109为旨在开发适合机械收获的棉花品种的育种计划提供了宝贵的遗传资源.
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