Results 111 to 120 of about 50,815 (199)

Poor statistical power in population-based association study of gene interaction

open access: yesBMC Medical Genomics
Background Statistical epistasis, or “gene–gene interaction” in genetic association studies, means the nonadditive effects between the polymorphic sites on two different genes affecting the same phenotype.
Jiarui Ma   +4 more
doaj   +1 more source

'On the Application of Hierarchical Coevolutionary Genetic Algorithms: Recombination and Evaluation Partners' [PDF]

open access: yes, 2003
This paper examines the use of a hierarchical coevolutionary genetic algorithm under different partnering strategies. Cascading clusters of sub-populations are built from the bottom up, with higher-level sub-populations optimising larger parts of the ...
Aickelin, Uwe, Bull, Larry
core   +5 more sources

DCA for genome-wide epistasis analysis: the statistical genetics perspective

open access: yesPhysical Biology, 2019
Direct Coupling Analysis (DCA) is a now widely used method to leverage statistical information from many similar biological systems to draw meaningful conclusions on each system separately. DCA has been applied with great success to sequences of homologous proteins, and also more recently to whole-genome population-wide sequencing data.
Gao, Chen-Yi   +4 more
openaire   +5 more sources

Confounding of linkage disequilibrium patterns in large scale DNA based gene-gene interaction studies

open access: yesBioData Mining, 2019
Background In Genome-Wide Association Studies (GWAS), the concept of linkage disequilibrium is important as it allows identifying genetic markers that tag the actual causal variants.
Marc Joiret   +3 more
doaj   +1 more source

Novel methods for epistasis detection in genome-wide association studies.

open access: yesPLoS ONE, 2020
More and more genome-wide association studies are being designed to uncover the full genetic basis of common diseases. Nonetheless, the resulting loci are often insufficient to fully recover the observed heritability. Epistasis, or gene-gene interaction,
Lotfi Slim   +3 more
doaj   +1 more source

Distinct network patterns emerge from Cartesian and XOR epistasis models: a comparative network science analysis

open access: yesBioData Mining
Background Epistasis, the phenomenon where the effect of one gene (or variant) is masked or modified by one or more other genes, significantly contributes to the phenotypic variance of complex traits.
Zhendong Sha   +6 more
doaj   +1 more source

Privacy-preserving decision tree for epistasis detection

open access: yesCybersecurity, 2019
The interaction between gene loci, namely epistasis, is a widespread biological genetic phenomenon. In genome-wide association studies(GWAS), epistasis detection of complex diseases is a major challenge. Although many approaches using statistics, machine
Qingfeng Chen, Xu Zhang, Ruchang Zhang
doaj   +1 more source

Detection and Mapping of Quantitative Trait Loci that Determine Responsiveness [PDF]

open access: yes, 2004
Exposure to 70% N2O evokes a robust antinociceptive effect in C57BL/6 (B6) but not in DBA/2 (D2) inbred mice. This study was conducted to identify quantitative trait loci (QTL) in the mouse genome that might determine responsiveness to N2O.
Belknap, John K.   +4 more
core   +1 more source

Misspecification in mixed-model based association analysis

open access: yes, 2015
Additive genetic variance in natural populations is commonly estimated using mixed models, in which the covariance of the genetic effects is modeled by a genetic similarity matrix derived from a dense set of markers.
Kruijer, Willem
core   +2 more sources

Does replication groups scoring reduce false positive rate in SNP interaction discovery? [PDF]

open access: yes, 2010
BACKGROUNG. Computational methods that infer single nucleotide polymorphism (SNP) interactions from phenotype data may uncover new biological mechanisms in non-Mendelian diseases. However, practical aspects of such analysis face many problems.
Curk, Tomaz   +3 more
core  

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