The Impact of Transposable Elements on Gene Expression Evolution in Rodents
Author Information
Author(s): Vini Pereira, David Enard, Adam Eyre-Walker
Primary Institution: Centre for the Study of Evolution, School of Life Sciences, University of Sussex, Brighton, United Kingdom
Hypothesis
Do new transposable element insertions affect gene expression profiles in rodents?
Conclusion
Transposable element insertions significantly influence the evolution of gene expression levels in rodents.
Supporting Evidence
- Expression divergence is significantly correlated to the number of new LTR and SINE elements.
- TE insertion has accounted for approximately 20% of all expression profile divergence in rodents.
- New TE insertions are common in mouse and rat genomes.
Takeaway
Transposable elements, which are bits of DNA that can move around in the genome, help change how genes are expressed in mice and rats.
Methodology
The study analyzed gene expression data from mouse and rat across 17 tissues, correlating expression divergence with new transposable element insertions.
Potential Biases
Potential biases in gene expression data due to differences in probe binding affinities between species.
Limitations
The analysis may not account for all factors influencing gene expression divergence, particularly in brain tissues.
Participant Demographics
Mouse and rat species were used for the study.
Statistical Information
P-Value
p<0.0001
Confidence Interval
95% CI: 12% to 26%
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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