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Updated: Mar 27, 2026

Long-term, High-resolution Confocal Time Lapse Imaging of Arabidopsis Cotyledon Epidermis during Germination
Published on: December 31, 2012
Single-cell network analysis reveals gene expression programs for Arabidopsis epidermis development and metabolism
Yifan Wang1, Min Yu1, Shisong Ma1,2
1MOE Key Laboratory for Cellular Dynamics, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Innovation Academy for Seed Design, Chinese Academy of Sciences, Hefei, China.
Researchers mapped plant epidermal gene programs using single-cell RNA sequencing. They identified key gene expression programs (GEPs) controlling stomatal development and function, revealing new regulators of stomatal density and movement.
Area of Science:
- Plant Biology
- Genomics
- Developmental Biology
Background:
- The epidermis is crucial for plant physiology, but its gene regulatory networks are not well understood.
- Defining these networks is essential for understanding plant development and function.
Purpose of the Study:
- To construct a comprehensive gene co-expression network for Arabidopsis epidermis.
- To identify gene expression programs (GEPs) governing epidermal cell development and metabolism.
- To uncover novel genes regulating stomatal development and function.
Main Methods:
- Integrated 11 single-cell RNA-seq datasets from Arabidopsis shoots and leaves.
- Extracted and analyzed 30,247 epidermal cells.
- Constructed a single-cell gene co-expression network (AtEpidermisGGM) using the SingleCellGGM algorithm.
Main Results:
- Identified 120 GEPs associated with epidermal lineage development and metabolism.
- Revealed spatial-temporal dynamics of GEPs during stomatal development, from cell division to maturation.
- Discovered and validated roles for DMS1/2 in regulating stomatal density and DGC1/2/3 in controlling stomatal movement.
Conclusions:
- AtEpidermisGGM provides a detailed map of epidermal gene programs in plants.
- Uncovered molecular modules coordinating epidermal development and metabolism.
- Offers a valuable resource for future research in plant epidermal biology.
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