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Updated: Jul 26, 2026

RNA Blot Analysis for the Detection and Quantification of Plant MicroRNAs

RNA Blot Analysis for the Detection and Quantification of Plant MicroRNAs

Published on: July 11, 2020

在 Liriodendron chinense 中对 miRNA 和花粉相关的 miRNA-目标关系的全基因组识别

Zhiruo Shen¹, Zhenxiu Xu^1,2, Wenbin Su¹

¹State Key Laboratory of Tree Genetics and Breeding, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China.

Plants (Basel, Switzerland)

|February 27, 2026

概括

这项研究揭示了microRNAs (miRNAs) 在Liriodendron chinense.中对植物繁殖至关重要. 花粉中的特定miRNA模块调节关键的发育过程,为低种子集提供了洞察力.

科学领域:

植物分子生物学植物分子生物学
基因组学和转录基因组学
生殖生物学生殖生物学

背景情况:

微RNAs (miRNAs) 是植物发育和繁殖中的重要转录后调节者.
利里奥登德龙,一个Magnoliaceae的物种,有高的花粉产量,但低种子集,底层的分子机制不清楚.
了解miRNA角色可以阐明木质植物的生殖局限性.

研究的目的:

在Liriodendron chinense的各种组织中全面描述微RNA (miRNA) 表达.
为了识别特定于组织的miRNA模块,特别是与花粉相关的模块.
研究调节花粉发育和功能的miRNA-目标相互作用.

主要方法:

小RNA测序 (sRNA-seq) 和全转录组RNA测序 (RNA-seq) 在五种L. chinense组织上进行:叶子,葡萄杯,花,花和花粉.
进行了miRNAs的全基因组识别和基于表达的聚类.
整合sRNA-seq和RNA-seq数据确定了具有抗相关表达模式的miRNA-目标对.

主要成果:

确定了688个miRNA,包括保存的和特定物种的miRNA.
观察到明显的与组织相关的miRNA模块,其中一个显着的花粉丰富的模块.
在花粉中抗相关的miRNA-目标表达模式表明了两种调节模式,其中目标丰富于花粉发育过程.

结论:

这项研究提供了一个详细的,组织解析的miRNA表达在L. chinense.的图谱.
识别了与花粉相关的miRNA模块及其目标,为花粉发育的分子基础提供了洞察力.
这些发现为未来对L. chinense繁殖和低种子集的功能研究提供了候选监管网络.

关键词:

里里奥登德龙青 (Liriodendron chinense) 是一种植物.这是一个微型RNA.对于花粉来说,这是一个很好的选择.小RNA测序的小RNA测序组织特异性的组织特异性的组织.

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相关概念视频

MicroRNAs

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...

MicroRNAs

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...