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Updated: Jul 18, 2026
13:11
Optimized Analysis of DNA Methylation and Gene Expression from Small, Anatomically-defined Areas of the Brain
Published on: July 12, 2012
Genomic imprinting and the social brain
Anthony R Isles1, William Davies, Lawrence S Wilkinson
1Laboratory of Cognitive and Behavioural Neuroscience, The Babraham Institute, Babraham Research Campus, Babraham, Cambridge CB2 4AT, UK. islesar1@cardiff.ac.uk
Summary
Genomic imprinting, an epigenetic process, influences parent-specific gene expression. This study explores how imprinted genes mediate bonding and social behaviors in animals and humans, linking them to evolutionary conflicts.
Area of Science:
- Epigenetics
- Developmental Biology
- Evolutionary Biology
Background:
- Genomic imprinting involves parent-of-origin-specific epigenetic marking of genes.
- This marking can lead to monoallelic expression, where only one parental allele is active.
- Genomic imprinting is theorized to evolve from intragenomic conflict due to relatedness asymmetry.
Purpose of the Study:
- To investigate the evolutionary basis of genomic imprinting.
- To examine how imprinted genes influence social and bonding behaviors.
- To categorize imprinted gene functions related to parental investment and social structures.
Main Methods:
- Literature review of animal and human studies on imprinted genes and behavior.
- Categorization of imprinted gene functions into mother-offspring and adult social interactions.
- Analysis of evolutionary theory in relation to observed behavioral patterns.
Main Results:
- Imprinted genes are predicted to influence bonding and social behaviors.
- Two classes of imprinted gene functions were identified: mother-offspring interactions and adult social interactions.
- Evidence suggests a pattern of behavioral functions mediated by imprinted genes, linked to parental investment and social dynamics.
Conclusions:
- Genomic imprinting plays a significant role in mediating social and bonding behaviors.
- The evolutionary theory of genomic imprinting is supported by behavioral evidence.
- Further research can predict the direction of maternal or paternal gene action in behavioral contexts.
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