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Related Experiment Video

Updated: Aug 2, 2025

Lateral Root Inducible System in Arabidopsis and Maize

Lateral Root Inducible System in Arabidopsis and Maize

Published on: January 14, 2016

Temporal and spatial auxin responsive networks in maize primary roots.

Maxwell R McReynolds¹, Linkan Dash², Christian Montes¹

¹Department of Plant Pathology and Microbiology, Iowa State University, Ames, Iowa 50011, USA.

Quantitative Plant Biology

|April 20, 2023

Summary

This study maps auxin-regulated gene networks in maize roots, revealing region-specific and time-dependent responses. Understanding these auxin pathways is crucial for improving maize root development.

Keywords:

auxin co-expression gene regulation maize networks roots

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Last Updated: Aug 2, 2025

Lateral Root Inducible System in Arabidopsis and Maize

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Published on: January 14, 2016

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Experimental Design for Laser Microdissection RNA-Seq: Lessons from an Analysis of Maize Leaf Development

Experimental Design for Laser Microdissection RNA-Seq: Lessons from an Analysis of Maize Leaf Development

Published on: March 5, 2017

Area of Science:

Plant Biology
Genomics
Developmental Biology

Background:

Auxin is a vital plant hormone controlling root growth and development in flowering plants.
Understanding auxin's role in maize root development is critical for this major crop.

Purpose of the Study:

To characterize auxin-responsive gene expression across different maize root zones and time points.
To reconstruct auxin gene regulatory networks and identify key transcription factors involved in maize root development.

Main Methods:

Quantified auxin-regulated gene expression in four primary root regions (meristem, elongation, cortex, stele) at two time points (30 and 120 minutes).
Reconstructed gene regulatory networks and Auxin-Response Factor subnetworks to identify specific transcription factors and target genes.

Main Results:

Identified hundreds of auxin-regulated genes with diverse biological functions.
Observed that most auxin-regulated genes were region-specific, with higher prevalence in differentiated tissues compared to the root meristem.
Discovered novel molecular connections underlying maize root development.

Conclusions:

The study provides a comprehensive map of auxin-regulated transcription in maize roots.
Identified key transcription factors and tissue/temporal-specific auxin responses.
Establishes a foundation for future functional genomic studies to enhance maize root development.