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Updated: Apr 18, 2026

A Simple Method for Isolation of Soybean Protoplasts and Application to Transient Gene Expression Analyses
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Soybean kinome: functional classification and gene expression patterns.

Jinyi Liu1, Nana Chen1, Joshua N Grant1

  • 1Department of Plant Sciences, University of Tennessee, Knoxville, TN, USA.

Journal of Experimental Botany
|January 24, 2015
PubMed
Summary
This summary is machine-generated.

Soybean protein kinases (PKs) comprise 2166 genes, crucial for plant biology. This study classifies the soybean kinome, revealing diverse expression patterns and functional divergence, essential for understanding plant signaling and development.

Keywords:
abiotic stressbiotic stressco-expression networkcollinearity analysisduplication eventsgene expressionsoybean kinases.

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Area of Science:

  • Plant genetics and molecular biology
  • Genomics and bioinformatics
  • Plant signaling pathways

Background:

  • Protein kinases (PKs) are vital, highly conserved gene families in plants, regulating numerous biological functions.
  • Despite numerous predicted PK genes in soybean, a comprehensive classification and expression analysis is lacking.

Purpose of the Study:

  • To identify and classify the complete soybean protein kinase (PK) repertoire (kinome).
  • To analyze the expression patterns and functional divergence of soybean PK subfamilies.
  • To investigate the evolutionary mechanisms behind the expansion of the soybean kinome.

Main Methods:

  • Bioinformatic identification and classification of the soybean kinome.
  • Analysis of gene structure, subcellular localization, and collinearity.
  • Global gene expression profiling across various tissues and stress conditions.
  • Co-expression network analysis to infer pathway associations.

Main Results:

  • Identified 2166 putative soybean PK genes, classified into 19 groups, 81 families, and 122 subfamilies.
  • Receptor-like kinase (RLK) group is the largest, with 1418 genes.
  • Whole-genome segmental duplication significantly contributed to kinome expansion.
  • Extensive functional divergence observed, with tissue- and stress-specific expression patterns.

Conclusions:

  • The comprehensive analysis provides a foundational resource for understanding soybean PK functions.
  • Expression patterns and network analyses suggest diverse roles in plant development and stress responses.
  • Further functional studies are warranted to elucidate specific PK roles in soybean signaling pathways.