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Epistasis Analysis

Epistasis Analysis

Although Mendel chose seven unrelated traits in peas to study gene segregation, most traits involve multiple gene interactions that create a spectrum of phenotypes. When the interaction of various genes or alleles at different locations influences a phenotype, this is called epistasis. Epistasis often involves one gene masking or interfering with the expression of another (antagonistic epistasis). Epistasis often occurs when different genes are part of the same biochemical pathway. The...

Epistasis

Epistasis

In addition to multiple alleles at the same locus influencing traits, numerous genes or alleles at different locations may interact and influence phenotypes in a phenomenon called epistasis. For example, rabbit fur can be black or brown depending on whether the animal is homozygous dominant or heterozygous at a TYRP1 locus. However, if the rabbit is also homozygous recessive at a locus on the tyrosinase gene (TYR), it will have an unshaded coat that appears white, regardless of its TYRP1...

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Related Experiment Video

Updated: Mar 9, 2026

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Published on: November 12, 2012

Systematic epistatic mapping of cellular processes.

Maximilian Billmann¹, Michael Boutros²

¹German Cancer Research Center (DKFZ), Division Signaling and Functional Genomics and Heidelberg University, Department of Cell and Molecular Biology, Faculty of Medicine Mannheim, Im Neuenheimer Feld 580, 69120 Heidelberg, Germany ; Department of Computer Science and Engineering, University of Minnesota-Twin Cities, 200 Union St SE, Minneapolis, MN 55455 USA.

|January 13, 2017

Summary

This summary is machine-generated.

This study presents a two-step strategy using genetic screens and interaction mapping to systematically identify cell cycle regulators. This approach reveals functional gene relationships during cell division for hypothesis generation.

Area of Science:

Cell Biology
Genetics
Molecular Biology

Background:

Keywords:

Cell cycle Genetic interactions Image analysis RNAi

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Genetic screens are crucial for discovering novel biological process components, including those involved in cell cycle and division.
Traditional forward genetic screens often yield unorganized 'hit' lists, limiting systematic functional relationship identification.
Genetic interaction mapping offers a systematic method to uncover functional relationships between genes.