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Updated: Jul 19, 2026

A Simple Method for Isolation of Soybean Protoplasts and Application to Transient Gene Expression Analyses

A Simple Method for Isolation of Soybean Protoplasts and Application to Transient Gene Expression Analyses

Published on: January 25, 2018

Soybean (Glycine max) transformation using mature cotyledonary node explants.

Paula M Olhoft¹, Christopher M Donovan, David A Somers

¹BASF Plant Service, Research Triangle Park, NC, USA.

Methods in Molecular Biology (Clifton, N.J.)

|September 22, 2006

Summary

Agrobacterium tumefaciens-mediated soybean transformation has advanced significantly since 1988. The cotyledonary-node method now achieves over 1% transformation efficiency, aiding crop improvement and genomics research.

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Area of Science:

Plant Biotechnology
Molecular Biology
Genetics

Background:

Agrobacterium tumefaciens-mediated transformation is a key tool in plant science.
Soybean transformation methods have evolved since 1988.
Efficient genetic modification of soybeans is crucial for crop improvement.

Purpose of the Study:

To review the advancements in Agrobacterium tumefaciens-mediated soybean transformation.
To highlight the effectiveness of the cotyledonary-node method.
To discuss the implications for crop improvement and functional genomics.

Main Methods:

Review of established Agrobacterium tumefaciens transformation protocols for soybeans.
Analysis of transformation efficiency data from various studies.
Focus on the cotyledonary-node explant method.

Main Results:

Soybean transformation is feasible across diverse genotypes and maturity groups.
The cotyledonary-node method consistently yields over 1% transformation efficiency.
Multiple explants, marker genes, selective agents, and A. tumefaciens strains are effective.

Conclusions:

The cotyledonary-node method is a highly productive approach for soybean transformation.
Continued improvements will increase adoption for crop improvement and genomics.
Enhanced transformation efficiency facilitates broader research applications.