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Updated: Jul 23, 2025
15:53
Isolation and Biophysical Study of Fruit Cuticles
Published on: March 30, 2012
16.8K
The COPII subunit CsSEC23 mediates fruit glossiness in cucumber
Luyao Gao1,2,3, Jiajian Cao1,2,3,4, Siyu Gong5
1College of Horticulture, Hunan Agricultural University, Changsha, 410128, China.
The Plant Journal : for Cell and Molecular Biology
|July 17, 2023
Summary
A novel cucumber mutant revealed that CsSEC23, a COPII vesicle component, regulates fruit peel glossiness. This mutation affects wax and cutin transport, impacting cuticle structure and gloss.
Area of Science:
- Plant Biology
- Molecular Genetics
- Biochemistry
Background:
- Cucumber glossiness is a key fruit quality trait.
- The molecular mechanisms regulating cucumber peel glossiness are not fully understood.
Purpose of the Study:
- To identify the genetic basis of cucumber glossiness.
- To elucidate the role of COPII vesicle transport in cucumber fruit peel development.
Main Methods:
- MutMap, genotyping, and gene editing were used to identify the causative gene.
- Analysis of protein interactions, gene expression, and cuticle structure.
Main Results:
- A novel cucumber glossy peel (Csgp) mutant was identified, caused by a mutation in CsSEC23.
- CsSEC23, a core COPII vesicle component, is essential for cucumber glossiness.
- The mutation disrupted CsSEC23-CsSEC31 interaction, impairing COPII vesicle transport.
- Genes involved in wax and cutin transport were upregulated, and cuticle structure was altered in the mutant.
Conclusions:
- CsSEC23 plays a crucial role in mediating cucumber fruit peel glossiness.
- The function of CsSEC23 in glossiness regulation is linked to COPII vesicle-mediated transport of waxes and cutins.
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