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Updated: Apr 22, 2026
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Single Cell Fate Mapping in Zebrafish
Published on: October 5, 2011
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Single-cell co-mapping reveals relationship between chromatin state and gene expression in early zebrafish
Vivek Bhardwaj1,2, Alberto Griffa1,2, Helena Viñas Gaza1,2
1Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences), Oncode Institute, Utrecht, Netherlands.
Elife
|April 21, 2026
Summary
This study reveals how chromatin and gene expression link to establish cell identity during zebrafish development. Researchers mapped gene activity and chromatin states in single cells, uncovering key mechanisms for cell differentiation.
Area of Science:
- Developmental Biology
- Epigenetics
- Genomics
Background:
- Cell identity relies on a specific chromatin landscape, crucial for embryonic development.
- Understanding chromatin establishment during vertebrate embryogenesis is limited by the lack of methods to jointly analyze chromatin modifications and gene expression in single cells.
Purpose of the Study:
- To develop and apply a multimodal measurement technique for simultaneous analysis of full-length transcriptome and histone modifications in individual zebrafish embryonic cells.
- To investigate the dynamic relationship between chromatin states and gene expression during early vertebrate development.
Main Methods:
- Developed a novel multimodal measurement assay for single-cell analysis of transcriptome and histone modifications.
- Applied the assay to zebrafish embryos during early developmental stages (gastrulation and somitogenesis).
- Utilized interpretable machine learning to integrate transcription factor expression and chromatin state data.
Main Results:
- Demonstrated that chromatin and transcription states are initially uncoupled in early zebrafish development, becoming progressively connected during gastrulation and somitogenesis.
- Identified that silencing of developmental genes involves local spreading of repressive chromatin and cell type-specific demethylation.
- Classified transcription factors as lineage-specific activators or repressors and identified epigenetically regulated transcription factors.
Conclusions:
- The study resolves the dynamic interplay between chromatin and transcription in early vertebrate development.
- Provides insights into how these molecular layers interact to establish and maintain cell identity.
- Highlights the role of epigenetic regulation in controlling transcription factor activity during development.
