Coordinated Evolution of Gene Clusters in Drosophila
Author Information
Author(s): Jason G Mezey, Sergey V Nuzhdin, Fangfei Ye, Corbin D Jones
Primary Institution: Cornell University
Hypothesis
The expression of physically clustered genes evolves in a coordinated manner across species.
Conclusion
Co-evolution of expression in gene clusters is common among species in the D. melanogaster subgroup.
Supporting Evidence
- Expression of clustered genes evolves in a coordinated manner.
- Clusters near heterochromatin regions are less common.
- Adaptive evolution is linked to co-evolution of expression.
Takeaway
This study shows that genes that are close together on a chromosome often change their expression together over time.
Methodology
Gene expression was measured using microarray analysis in seven closely related Drosophila species.
Potential Biases
Potential bias from using a single reference genome for gene ordering.
Limitations
The study may not account for all confounding factors affecting gene expression.
Participant Demographics
Seven species in the Drosophila melanogaster subgroup.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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