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Genome-wide epistasis analysis for Alzheimer’s disease and implications for genetic risk prediction
Background Single-nucleotide polymorphisms (SNPs) identified by genome-wide association studies only explain part of the heritability of Alzheimer’s disease (AD).
Hui Wang +4 more
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PERSPECTIVE: SIGN EPISTASIS AND GENETIC COSTRAINT ON EVOLUTIONARY TRAJECTORIES [PDF]
Epistasis for fitness means that the selective effect of a mutation is conditional on the genetic background in which it appears. Although epistasis is widely observed in nature, our understanding of its consequences for evolution by natural selection remains incomplete.
Weinreich, Daniel M. +2 more
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Weak Epistasis Generally Stabilizes Phenotypes in a Mouse Intercross. [PDF]
The extent and strength of epistasis is commonly unresolved in genetic studies, and observed epistasis is often difficult to interpret in terms of biological consequences or overall genetic architecture. We investigated the prevalence and consequences of
Anna L Tyler +3 more
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Estimating directional epistasis
Epistasis, i.e. the fact that gene effects depend on the genetic background, is a direct consequence of the complexity of genetic architectures. Despite this, most of the models used in evolutionary and quantitative genetics pay scant attention to ...
Arnaud eLE ROUZIC
doaj +1 more source
Epistasis: obstacle or advantage for mapping complex traits? [PDF]
Identification of genetic loci in complex traits has focused largely on one-dimensional genome scans to search for associations between single markers and the phenotype.
Koen J F Verhoeven +2 more
doaj +1 more source
Stability-mediated epistasis constrains the evolution of an influenza protein. [PDF]
John Maynard Smith compared protein evolution to the game where one word is converted into another a single letter at a time, with the constraint that all intermediates are words: WORD→WORE→GORE→GONE→GENE. In this analogy, epistasis constrains evolution,
Bloom, Jesse D +2 more
core +1 more source
Genetic Dissection of Cytonuclear Epistasis in Line Crosses [PDF]
Abstract Dissection of cytonuclear interactions is fundamentally important for understanding the genetic architecture of complex traits. Here we propose a mating design based on reciprocal crosses and extend the existing QTL mapping method to evaluate the contribution of cytoplasm and QTL × cytoplasm interactions to the phenotypic ...
Zaixiang, Tang +4 more
openaire +2 more sources
Pervasive epistasis exposes intramolecular networks in adaptive enzyme evolution
Enzyme evolution is characterized by constant alterations of the intramolecular residue networks supporting their functions. The rewiring of these network interactions can give rise to epistasis.
Karol Buda +2 more
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Genetic epistasis regulates amyloid deposition in resilient aging [PDF]
AbstractIntroductionThe brain‐derived neurotrophic factor (BDNF) interacts with important genetic Alzheimer's disease (AD) risk factors. Specifically, variants within the SORL1 gene determine BDNF's ability to reduce amyloid β (Aβ) in vitro. We sought to test whether functional BDNF variation interacts with SORL1 genotypes to influence expression and ...
Felsky, Daniel +8 more
openaire +3 more sources
Statistical Modeling of Epistasis and Linkage Decay using Logic Regression [PDF]
Logic regression has been recognized as a tool that can identify and model non-additive genetic interactions using Boolean logic groups. Logic regression, TASSEL-GLM and SAS-GLM were compared for analytical precision using a previously characterized ...
Jean-Luc Jannink +4 more
core +2 more sources

