一个NAC转录因子ZaNAC93赋予Zanthoxylum armatum中的花启动,水果发育和刺形成
Ning Tang1, Peiyin Wu2, Zhengyan Cao2
1Chongqing Key Laboratory of Economic Plant Biotechnology, Chongqing University of Arts and Sciences, Chongqing, 402160, China.
Plant physiology and biochemistry : PPB
|June 8, 2023
概括
这项研究确定了ZaNAC93,NAC转录因子,作为Zanthoxylum armatum中花发育和刺形成的关键调节者. 它的过度表达会影响开花,水果产量,并减少刺密度,为植物生长机制提供了洞察力.
科学领域:
- 植物分子生物学 植物分子生物学
- 植物开发 植物开发
- 转录因子 转录因子
背景情况:
- 桑托克西 (Zanthoxylum armatum) 呈现双胞胎繁殖与apomixis,导致由于增加的雄花和雌花的刺刺密度,导致产量和收获的挑战.
- 在Z. armatum中,控制花发育和刺形成的分子机制尚不清楚.
- NAC转录因子是各种植物生长和发育过程的关键调节者.
研究的目的:
- 为了识别和描述参与Zanthoxylum armatum中花朵发育和刺形成的NAC转录因子.
- 阐明这些NAC因子在Z. armatum生殖发育和刺针启动中的调节机制.
主要方法:
- 在Z. armatum中识别和分析NAC转录因子家族成员.
- 基因表达分析以确定男性偏见的NAC.
- 在番茄中进行过度表达ZaNAC93的研究,以评估其功能.
- 对对ZaNAC93过度表达的反应中基因表达变化的分析.
- 酵母二杂交试验,以调查蛋白质与蛋白质之间的相互作用.
主要成果:
- 确定了159种ZaNAC,其中16种表现出男性偏见的表达,包括ZaNAC93和ZaNAC34.
- 番茄中ZaNAC93的过度表达改变了花朵和果实的发展,促进了开花和衰老,同时减少了果实和种子的大小.
- 过度表达ZaNAC93显著降低了叶子和花朵中的三体密度.
- ZaNAC93调节了GA,ABA和JA信号通路中的基因,并与AP1和GAI等关键蛋白相互作用.
结论:
- 在Z. armatum中,ZaNAC93在调节花发育,果实产量和刺形成方面发挥着重要作用.
- 这些发现为ZaNAC93的功能及其在植物发育中的相互作用提供了新的分子洞察力.
- 这项研究有助于了解植物生殖特征和物理防御的遗传基础.
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