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Updated: Jun 26, 2026
13:14
Global Gene Expression Analysis Using a Zebrafish Oligonucleotide Microarray Platform
Published on: August 10, 2009
Positive correlation between gene coexpression and positional clustering in the zebrafish genome
Yen Kaow Ng1, Wei Wu, Louxin Zhang
1Department of Mathematics, National University of Singapore, 2 Science Drive 2, Singapore 117543, Singapore. matnyk@nus.edu.sg
BMC Genomics
|January 23, 2009
Summary
Coexpressed genes cluster together in eukaryotic genomes. This study confirms this in zebrafish (Danio rerio), showing gene proximity correlates with expression patterns.
Area of Science:
- Genomics
- Gene Expression Analysis
Background:
- Co-expression of genes is a known phenomenon in eukaryotic genomes.
- Gene clustering is often observed, suggesting a link between genomic organization and gene regulation.
Purpose of the Study:
- To investigate the correlation between gene proximity and transcriptional expression patterns.
- To analyze this relationship specifically within the zebrafish (Danio rerio) genome.
Main Methods:
- Utilized available microarray data for gene expression profiling.
- Employed gene annotation data for genomic context analysis.
- Examined gene coexpression in relation to intergenic distance and transcription orientation.
Main Results:
- Demonstrated significant coexpression between neighboring genes in the zebrafish genome.
- Identified intergenic distance and transcription orientation as factors influencing coexpression levels.
- Confirmed a positive correlation between gene coexpression and positional clustering.
Conclusions:
- Provides evidence supporting the hypothesis of coexpressed gene clustering in eukaryotic genomes.
- Highlights the significance of genomic proximity in transcriptional regulation within zebrafish.
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