Results 1 to 10 of about 60,462 (173)

Global epistasis emerges from a generic model of a complex trait

open access: goldeLife, 2021
Epistasis between mutations can make adaptation contingent on evolutionary history. Yet despite widespread ‘microscopic’ epistasis between the mutations involved, microbial evolution experiments show consistent patterns of fitness increase between ...
Gautam Reddy, Michael M Desai
doaj   +2 more sources

GenEpi: gene-based epistasis discovery using machine learning [PDF]

open access: yesBMC Bioinformatics, 2020
Background Genome-wide association studies (GWAS) provide a powerful means to identify associations between genetic variants and phenotypes. However, GWAS techniques for detecting epistasis, the interactions between genetic variants associated with ...
Yu-Chuan Chang   +9 more
doaj   +3 more sources

Epistasis and Entropy. [PDF]

open access: yesPLoS Genetics, 2016
Epistasis is a key concept in the theory of adaptation. Indicators of epistasis are of interest for large systems where systematic fitness measurements may not be possible. Some recent approaches depend on information theory.
Kristina Crona
doaj   +5 more sources

Evidence of epistasis between Interleukin-1 and Selenoprotein-S with susceptibility to rheumatoid arthritis [PDF]

open access: bronze, 2009
Objective: Selenoprotein-S (SELS) is involved in the stress response within the endoplasmic reticulum (ER) and inflammation. Recently, promoter variants in the SELS gene were shown to be associated with plasma levels of interleukin (IL)6, IL1β and tumour
Binks, M.H.   +5 more
core   +4 more sources

Fitness ranking of individual mutants drives patterns of epistatic interactions in HIV-1. [PDF]

open access: yesPLoS ONE, 2011
Fitness interactions between mutations, referred to as epistasis, can strongly impact evolution. For RNA viruses and retroviruses with their high mutation rates, epistasis may be particularly important to overcome fitness losses due to the accumulation ...
Javier P Martínez   +6 more
doaj   +9 more sources

Strong Selection Significantly Increases Epistatic Interactions in the Long-Term Evolution of a Protein. [PDF]

open access: yesPLoS Genetics, 2016
Epistatic interactions between residues determine a protein's adaptability and shape its evolutionary trajectory. When a protein experiences a changed environment, it is under strong selection to find a peak in the new fitness landscape.
Aditi Gupta, Christoph Adami
doaj   +6 more sources

Resolving discrepancies between chimeric and multiplicative measures of higher-order epistasis [PDF]

open access: yesNature Communications
Epistasis - the interaction between alleles at different genetic loci - plays a fundamental role in biology. However, several recent approaches quantify epistasis using a chimeric formula that measures deviations from a multiplicative fitness model on an
Uthsav Chitra   +2 more
doaj   +2 more sources

Dynamic Epistasis under Varying Environmental Perturbations [PDF]

open access: yes, 2014
Epistasis describes the phenomenon that mutations at different loci do not have independent effects with regard to certain phenotypes. Understanding the global epistatic landscape is vital for many genetic and evolutionary theories. Current knowledge for
Barker, Brandon, Gu, Zhenglong, Xu, Lin
core   +16 more sources

Emergence and propagation of epistasis in metabolic networks

open access: yeseLife, 2021
Epistasis is often used to probe functional relationships between genes, and it plays an important role in evolution. However, we lack theory to understand how functional relationships at the molecular level translate into epistasis at the level of whole-
Sergey Kryazhimskiy
doaj   +1 more source

Cryptic variation fuels plant phenotypic change through hierarchical epistasis. [PDF]

open access: hybridNature
Zebell SG   +12 more
europepmc   +3 more sources

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