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Rapid and Efficient Spatiotemporal Monitoring of Normal and Aberrant Cytosine Methylation within Intact Zebrafish Embryos
Published on: August 18, 2022
The developmental epigenomics toolbox: ChIP-seq and MethylCap-seq profiling of early zebrafish embryos
Ozren Bogdanović1, Ana Fernández-Miñán, Juan J Tena
1Centro Andaluz de Biología del Desarrollo-CABD, CSIC-UPO-JA, 41013 Sevilla, Spain.
Methods (San Diego, Calif.)
|April 30, 2013
Summary
This study details ChIP-seq and MethylCap-seq protocols for zebrafish embryos, revealing dynamic epigenetic marks like histone modifications and DNA methylation during early development. These methods are crucial for understanding gene regulation in vertebrate embryogenesis.
Area of Science:
- Developmental Biology
- Epigenetics
- Genomics
Background:
- Genome-wide epigenetic profiling has advanced gene regulation understanding.
- The role of epigenetic marks in early vertebrate embryogenesis remains largely unexplored.
Purpose of the Study:
- To establish detailed ChIP-seq and MethylCap-seq protocols for zebrafish embryos.
- To investigate dynamic changes in histone modifications and DNA methylation during early development.
Main Methods:
- Chromatin immunoprecipitation sequencing (ChIP-seq) for histone modifications (H3K4me1, H3K4me3, H3K27ac).
- MethylCap-seq for genome-wide DNA methylation profiling.
- Application to zebrafish (Danio rerio) embryonic material across four developmental stages.
Main Results:
- ChIP-seq successfully profiled dynamic histone modifications during zebrafish development.
- Developmental transitions in histone marks were detectable via ChIP-seq.
- MethylCap-seq identified developmentally regulated DNA methylation remodeling.
- MethylCap-seq data align with existing zebrafish DNA methylation studies.
Conclusions:
- ChIP-seq and MethylCap-seq are effective for global epigenetic analysis in early vertebrate embryos.
- These epigenetic marks are dynamic and crucial during early embryonic development.
- The established protocols facilitate further research into epigenetic regulation in embryogenesis.
