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A Simple Dry Sectioning Method for Obtaining Whole-Seed-Sized Resin Section and Its Applications

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Maize endosperm development.

Dawei Dai^1,2, Zeyang Ma¹, Rentao Song¹

¹State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Beijing Key Laboratory of Crop Genetic Improvement, Joint International Research Laboratory of Crop Molecular Breeding, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China.

Journal of Integrative Plant Biology

|January 15, 2021

Summary

This summary is machine-generated.

Recent maize research reveals key genes controlling seed development. This study details molecular factors in endosperm compartments, advancing our understanding of maize seed formation.

Keywords:

endosperm development maize transcriptional regulatory network

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Published on: June 16, 2018

Area of Science:

Plant Biology
Molecular Genetics
Developmental Biology

Background:

Maize endosperm development is crucial for seed viability and yield.
Transcriptome analysis has provided insights into gene regulation during seed development.
Understanding specific endosperm compartments is essential for dissecting developmental programs.

Purpose of the Study:

To review recent advances in understanding the molecular factors and transcriptional regulatory networks governing maize endosperm development.
To highlight key genes and their roles in specific endosperm compartments.
To provide a comprehensive overview of current knowledge on maize endosperm development.

Main Methods:

High temporal-resolution transcriptome analysis.
Spatial transcriptome analysis using laser-capture microdissection.
Identification and characterization of key regulatory genes.

Main Results:

Detailed gene expression patterns in four major endosperm compartments (BETL, AL, SE, ESR) and EAS were revealed.
OPAQUE11 (O11) was identified as a central hub connecting endosperm development, nutrient metabolism, and stress responses.
Several genes (e.g., ZmSWEET4c, Thk1, Dek15) involved in BETL, AL, and cell cycle regulation were identified.

Conclusions:

Significant progress has been made in characterizing the maize endosperm developmental program at the molecular level.
Specific molecular factors and regulatory networks are crucial for the development of distinct endosperm compartments.
Further research into these networks will enhance our understanding of maize seed development and potentially improve crop yields.