Multifaceted plant G protein: interaction network, agronomic potential, and beyond

Area of Science:

• Plant Biology
• Molecular Genetics
• Agronomy

Background:

• Heterotrimeric guanine nucleotide-binding protein (G protein) plays a vital role in diverse biological processes within plants.
• Many of these G protein-mediated events have significant implications for agriculture and crop improvement.

Purpose of the Study:

• To review recent advancements in plant G protein research.
• To identify and analyze G protein core subunits in maize.
• To explore G protein interactions and their application in intelligent plant breeding.

Main Methods:

• Utilized integrated BLAST and domain confirmation to identify maize G protein subunits (Gα, Gβ, Gγ) based on Arabidopsis and rice data.
• Reviewed existing literature on G protein distribution, function, and interactions.
• Discussed the potential of G protein knowledge for enhancing agronomically important traits.

Main Results:

• Identified maize G protein core subunits Gα, Gβ, and Gγ.
• Described G protein interactions with key signaling components like CLAVATA receptors, brassinosteroid signaling kinase complex, and MADS-domain transcription factors.
• Highlighted the relevance of G protein and effector manipulation for plant development.

Conclusions:

• Heterotrimeric G protein and its effectors are critical for agronomic traits.
• Targeted manipulation of G protein pathways can facilitate the development of improved plant ideotypes via intelligent design breeding.