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Tuning in to noise: epigenetics and intangible variation
Nadia C Whitelaw1, Suyinn Chong, Emma Whitelaw
1Epigenetics Laboratory, Queensland Institute of Medical Research, Brisbane, Queensland 4006, Australia.
Developmental Cell
|November 16, 2010
Summary
Chromatin influences phenotypic variation by affecting transcriptional noise. This research explores chromatin's role in developmental noise across species, from yeast to mammals.
Area of Science:
- Molecular Biology
- Genetics
- Developmental Biology
Background:
- Phenotypic variation arises from complex interactions.
- Chromatin structure plays a crucial role in regulating gene expression.
- Understanding developmental noise is key to explaining subtle biological differences.
Purpose of the Study:
- To explore the role of chromatin in phenotypic variation.
- To contrast chromatin's role in variation with its role in development and cancer.
- To examine chromatin's contribution to transcriptional noise and developmental noise in mammals.
Main Methods:
- Review of recent literature on chromatin dynamics.
- Analysis of studies on transcriptional noise in model organisms.
- Consideration of implications for mammalian developmental noise.
Main Results:
- Chromatin is a significant factor in phenotypic variation.
- Transcriptional noise, influenced by chromatin, contributes to variation in yeast and C. elegans.
- This noise has implications for understanding mammalian developmental variation.
Conclusions:
- Chromatin's role extends beyond development and cancer to encompass phenotypic variation.
- Transcriptional noise is a key mechanism linking chromatin to variation.
- Further research into chromatin's role in mammalian developmental noise is warranted.
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