转录因子模块MaNAP1-MaMADS1通过乙烯调节调节香皮的软化和成熟
Hua Li1,2, Zhuo Chen1, Wenjun Zhu1
1College of Horticulture, Center for Plant Metabolomics, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
The Plant cell
|October 18, 2024
概括
香皮的软化,是指落的原因,由包括MaNAP1和MaMADS1.1在内的转录因子网络来调节. 这一发现为改善香的保质期和质感提供了目标.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 农业科学 农业科学
背景情况:
- 香皮在成熟过程中变软,导致手指掉落,保质期缩短.
- 控制香皮软化的分子机制尚未完全理解.
研究的目的:
- 阐明管理香皮软化和手指滴落的转录监管网络.
- 确定涉及乙烯诱导成熟的关键调节者.
主要方法:
- 转录组分析和全基因组对染色质可访问性和转录因子结合性的分析.
- 研究了Musa acuminata NAC-like,Apetala3/Pistillata1 (MaNAP1) 和MaMADS1.1激活的作用.
- 研究了MaNAP1,MaMADS1和ETHYLENE INSENSITIVE3 (MaEIN3) 之间的相互作用.
主要成果:
- 在乙烯诱导的成熟过程中,与细胞壁相关的基因被上调.
- 鉴定出MaNAP1和MaMADS1是针对细胞壁相关基因的关键调节体.
- MaNAP1和MaMADS1由MaEIN3直接调节,并经历表观遗传修饰.
- 监管TFs的过度表达促进了皮肤的软化.
结论:
- 一个以MaNAP1和MaMADS1为中心的等级调节级联控制着香皮软化和手指下降.
- 这个网络集成了乙烯信号和表观遗传调节.
- 确定的监管目标有可能改善香的质地和保质期.
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