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Updated: Jul 24, 2025
09:23
Lateral Root Inducible System in Arabidopsis and Maize
Published on: January 14, 2016
13.9K
The long intergenic noncoding RNA ARES modulates root architecture in Arabidopsis
Thomas Roulé1,2, María Florencia Legascue3, Andana Barrios1,2,3
1Institute of Plant Sciences Paris Saclay IPS2, CNRS, INRA, Université Evry, Université Paris-Saclay, Gif-sur-Yvette, France.
IUBMB Life
|July 6, 2023
Summary
Long noncoding RNAs (lncRNAs) regulate plant gene expression. The lncRNA ARES controls auxin response and lateral root development by modulating gene expression, impacting plant growth.
Area of Science:
- Plant molecular biology
- Genetics
- Developmental biology
Background:
- Long noncoding RNAs (lncRNAs) are key gene expression regulators in plants.
- They influence diverse processes like epigenetics, miRNA activity, and protein stability.
- lncRNAs play roles in plant development and environmental responses.
Purpose of the Study:
- Identify lncRNAs near genes controlling root development.
- Investigate the function of the lncRNA ARES in auxin response and lateral root formation.
Main Methods:
- Bioinformatic search for lncRNA loci near root development genes.
- Gene knockdown and knockout experiments for ARES.
- Analysis of gene expression changes via transcriptomics.
- Phenotypic analysis of root development.
Main Results:
- Identified lncRNA ARES downstream of the lateral root gene IAA14.
- ARES knockdown affected auxin-induced expression of NF-YB3.
- ARES disruption caused root developmental defects.
- Transcriptomic analysis showed deregulation of ARF7-dependent genes.
Conclusions:
- The lncRNA ARES is a novel regulator of auxin response in lateral root development.
- ARES likely modulates gene expression in trans to control root growth.
- Further research into lncRNA functions in plant development is warranted.
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