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O11 is multi-functional regulator in maize endosperm.

Fan Feng1, Rentao Song1,2

  • 1a Shanghai Key Laboratory of Bio-Energy Crops , Plant Science Center, School of Life Sciences, Shanghai University , Shanghai , China.

Plant Signaling & Behavior
|March 14, 2018
PubMed
Summary
This summary is machine-generated.

Maize endosperm development involves Opaque11 (O11), a key regulator. This study explores O11

Keywords:
MaizeZHOUPIcold stress responseendosperm developmentnutrient metabolismregulatory network

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Area of Science:

  • Plant molecular biology
  • Developmental biology
  • Genetics

Background:

  • Maize endosperm is a vital nutrient-accumulating tissue supporting embryo development.
  • Understanding the regulatory mechanisms governing endosperm development is crucial for crop improvement.

Purpose of the Study:

  • To construct and analyze a regulatory network centered around Opaque11 (O11) in maize endosperm.
  • To investigate the potential role of O11 in cold stress response during seed development.
  • To explore the functional divergence between maize O11 and its Arabidopsis orthologue ZHOUPI.

Main Methods:

  • Construction of a regulatory network focusing on Opaque11 (O11).
  • Analysis of O11's role in cellular development, nutrient metabolism, and stress responses.
  • Comparative analysis with Arabidopsis orthologue ZHOUPI.

Main Results:

  • A regulatory network centered around O11 was successfully constructed, integrating multiple developmental processes.
  • Evidence suggests O11 plays a regulatory role in cold stress response during maize seed development.
  • Functional divergence between maize O11 and Arabidopsis ZHOUPI was identified, potentially explaining differences in seed development.

Conclusions:

  • Opaque11 (O11) is a central regulator in maize endosperm, unifying development, metabolism, and stress responses.
  • O11 likely mediates cold stress adaptation in developing maize seeds.
  • Functional divergence between monocot and dicot orthologues highlights evolutionary adaptations in seed development.