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Related Experiment Video

Updated: Sep 16, 2025

Direct Agroinoculation of Maize Seedlings by Injection with Recombinant Foxtail Mosaic Virus and Sugarcane Mosaic Virus Infectious Clones

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Published on: February 27, 2021

Synthetic feed-forward loop circuit boosts transgene expression in sugarcane.

Zhihai Zhang¹, Sultana Anwar^2,3, Erin J Yafuso^2,3

¹DOE Center for Advanced Bioenergy and Bioproducts Innovation (CABBI), University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.

Plant Cell Reports

|July 8, 2025

Summary

Researchers developed a novel GAL4-based feed-forward loop circuit. This circuit significantly boosts reporter gene expression in sugarcane, improving genetic research tools.

Keywords:

Biobased products Feed-forward loop circuit GAL4 system Global sustainability Sugarcane

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Area of Science:

Plant Biotechnology
Molecular Biology
Genetics

Background:

Reporter gene systems are crucial for understanding gene function in plants.
Enhancing reporter gene expression is vital for improving the sensitivity and reliability of these systems.
Sugarcane (Saccharum spp.) transformation and gene expression studies benefit from optimized molecular tools.

Purpose of the Study:

To design and implement a novel genetic circuit to enhance reporter gene expression in sugarcane.
To evaluate the efficacy of a GAL4-based feed-forward loop in boosting gene expression.
To establish a more sensitive system for monitoring gene activity in plant tissues.

Main Methods:

Construction of a GAL4-based feed-forward loop genetic circuit.
Stable transformation of sugarcane with the engineered circuit and a β-glucuronidase (GUS) reporter gene.
Quantitative analysis of GUS reporter gene expression in various sugarcane tissues (leaves and stems).

Main Results:

The novel feed-forward loop circuit significantly enhanced β-glucuronidase (GUS) reporter gene expression.
Increased expression was observed in both leaves and stems of stably transformed sugarcane plants.
The GAL4-based system demonstrated a marked improvement over standard expression systems.

Conclusions:

A new GAL4-based feed-forward loop circuit effectively enhances GUS reporter gene expression in sugarcane.
This engineered circuit provides a powerful tool for improving gene expression studies in plants.
The findings contribute to the advancement of genetic engineering and molecular biology in sugarcane research.