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一个PpEIL2/3-PpNAC1-PpWRKY14模块通过调节桃子中的乙烯生产来调节水果的成熟

Yudi Liu^1,2,3, Wen Xiao^1,4, Liao Liao^1,2

¹State Key Laboratory of Plant Diversity and Specialty Crops, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.

Journal of integrative plant biology

|August 26, 2024

概括

一个涉及PpEIL2/3,PpNAC1和PpWRKY14的新型基因模块调节了桃花的成熟. 这一途径控制着乙烯的生产,为水果的发育和成熟过程提供了洞察力.

科学领域:

植物生物学植物生物学
分子遗传学分子遗传学
发展水果发展水果发展

背景情况:

WRKY转录因子对植物应激反应至关重要,但它们在水果成熟中的作用尚不清楚.
桃子的成熟涉及复杂的遗传调节,其中乙烯生产是关键因素.

研究的目的:

研究 WRKY 基因 PpWRKY14 在桃子成熟中的作用.
阐明控制桃子果实成熟的监管网络,重点关注乙烯生物合成基因.

主要方法:

在桃子水果发育过程中对PpWRKY14,PpNAC1,PpACS1,PpACO1,PpEIL2和PpEIL3的基因表达分析.
研究PpWRKY14与目标基因的促进子区域的结合.
分析PpWRKY14和PpNAC1.1.之间的相互作用.
检查PpEIL2/3对PpNAC1转录的调节作用.

主要成果:

在桃花的果子发育和成熟过程中,PpWRKY14的表达会增加.
PpWRKY14直接诱导乙烯生物合成基因PpACS1和PpACO1的表达,当与PpNAC1.1二元化时,其活性会增强.
PpEIL2和PpEIL3抑制了PpNAC1的转录,而它们在成熟过程中表达的减少则抑制了PpNAC1.

结论:

一个调节模块 (PpEIL2/3-PpNAC1-PpWRKY14) 通过调节乙烯生产来控制桃子的成熟.
这项研究揭示了EIN3/EIL1和WRKY基因在复杂的水果成熟过程中的重要作用.

关键词:

这就是EILIL的意义.在 NAC1 的情况下,它是 NAC1 .普鲁努斯珀西卡 (Prunus persica) 是一种葡萄.这就是WRKYY.乙烯乙烯的使用方法熟成的成熟过程

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