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在 (Diospyros kaki L.) 树上的果实成熟过程中的生理变化和转录基因分析

Tania Dorta¹, Francisco Gil-Muñoz¹, Fany Carrasco¹

¹Valencian Institute for Agricultural Research (IVIA), Road CV-315 Km 10.7, 46113 Valencia, Spain.

Plants (Basel, Switzerland)

|August 26, 2023

概括

这项研究揭示了树上的果果成熟期间的关键基因表达模式. 它确定了与成熟,软化和颜色变化相关的特定乙烯通路基因,提供了对子发育的见解.

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:

果成熟的研究主要集中在收获后的条件上.
了解树上的成熟机制对于改善水果质量和管理至关重要.

研究的目的:

为了研究特定基因在树上的果成熟中的作用.
分析水果发育过程中的乙烯生物合成和反应途径.
为了将基因表达与农业学特征 (如皮肤颜色,体重和度) 相关联.

主要方法:

采集了来自七个子生殖质的样本,这些样本是在不同发育阶段的.
在乙烯通路中对13个基因的基因表达分析.
农学特征评估 (皮肤颜色,重量,坚固度).
主要组件分析 (PCA) 以关联基因表达和特征.

主要成果:

观察到不同的基因表达模式,在水果发育过程中具有上下调节.
乙烯生物合成基因 (DkACO1,DkACO2,DkACS2) 和反应基因 (DkERS1,DkERF18) 的表达减少与成熟水果中的乙烯产量减少有关.
通过分别通过DkXTH9和DkPSY激活,确定了DkERF8和DkERF16作为水果软化和皮肤颜色变化的潜在诱导剂.

结论:

提供了分子洞察力,了解在树上的黄瓜成熟过程中对乙烯信号的调节.
阐明了特定转录因子 (DkERF8,DkERF16) 在关键成熟过程中的作用.
提供了有价值的信息,以了解和潜在地操纵桃果的成熟.

关键词:

乙烯乙烯的使用方法果实成熟成熟的时间软化软化软化转录规则转录规则转录规则

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