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Gene-gene and gene-environment interactions in complex traits in yeast
Anupama Yadav1,2, Himanshu Sinha3,4,5
1Center for Cancer Systems Biology, and Cancer Biology, Dana Farber Cancer Institute, Boston, MA, 02215, USA.
Yeast (Chichester, England)
|January 12, 2018
Summary
Understanding how genes (genotype) influence traits (phenotype) is key. Studies in yeast reveal that gene-gene interactions (GGI) and gene-environment interactions (GEI) significantly impact complex traits, explaining previously missing heritability.
Area of Science:
- Genetics
- Systems Biology
- Yeast Genomics
Background:
- The genotype-phenotype map is complex, with genetic effects often context-dependent.
- Traditional studies focus on additive genetic loci, overlooking gene-gene interactions (GGI) and gene-environment interactions (GEI).
- Technical limitations hinder the mapping of GGI and GEI in complex traits.
Purpose of the Study:
- To review studies in yeast that identify GGI and GEI.
- To discuss the role of GGI and GEI in explaining missing heritability.
- To explore how GGI and GEI contribute to genetic robustness and adaptability.
Main Methods:
- Review of existing yeast genetic studies.
- Analysis of GGI and GEI in phenotypic variation.
- Discussion of yeast as a model organism for genetic interaction studies.
Main Results:
- Yeast studies have identified significant contributions of GGI and GEI to phenotypic variation.
- These interactions help explain the 'missing heritability' in complex traits.
- GGI and GEI provide insights into genetic robustness and adaptability.
Conclusions:
- Yeast is a powerful model for dissecting GGI and GEI.
- Understanding genetic interactions is crucial for a complete genotype-phenotype map.
- GGI and GEI are fundamental to biological robustness and adaptation.
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