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Related Experiment Video

Updated: May 25, 2026

Soybean Hairy Root Transformation for the Analysis of Gene Function
07:34

Soybean Hairy Root Transformation for the Analysis of Gene Function

Published on: May 5, 2023

Global gene expression profiles in developing soybean seeds.

Tomiko Asakura1, Tomoko Tamura, Kaede Terauchi

  • 1Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan. asakura@mail.ecc.u-tokyo.ac.jp

Plant Physiology and Biochemistry : PPB
|January 17, 2012
PubMed
Summary

Soybean seed development involves distinct gene expression patterns, with transcription factors active early and storage proteins accumulating later. Differentially expressed genes reveal coordinated regulation during seed maturation.

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Area of Science:

  • Plant Molecular Biology
  • Genomics
  • Biotechnology

Background:

  • Soybean (Glycine max L.) seed development is a complex process involving precise genetic regulation.
  • Understanding gene expression dynamics is crucial for improving soybean yield and quality.

Purpose of the Study:

  • To analyze gene expression profiles in soybean seeds across four developmental stages.
  • To identify differentially expressed genes (DEGs) and their expression patterns during seed maturation.

Main Methods:

  • DNA microarray analysis was employed to examine gene expression in soybean seeds at pod, 2-mm bean, 5-mm bean, and full-size bean stages.
  • Genes were clustered based on developmental stage and expression patterns using Rank products and hierarchical clustering (hclust).

Main Results:

  • Gene expression was tightly correlated with seed size and developmental stage.
  • Transcription factors dominated early stages (pod, 2-mm, 5-mm bean), while storage proteins were prominent in full-size beans.
  • Differentially expressed genes (DEGs) were categorized into increasing and decreasing expression groups, including storage proteins, seed-maturation proteins, and lipoxygenase (LOX) family members.

Conclusions:

  • Soybean seed development exhibits stage-specific gene expression, with distinct roles for transcription factors and storage proteins.
  • The identified DEGs provide insights into the molecular mechanisms governing soybean seed maturation.
  • Lipoxygenase (LOX) family members display multi-functional roles with varied expression patterns during seed development.