Results 21 to 30 of about 55,446 (204)

Global epistasis emerges from a generic model of a complex trait

open access: yeseLife, 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   +1 more source

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

High-order epistasis shapes evolutionary trajectories. [PDF]

open access: yesPLoS Computational Biology, 2017
High-order epistasis-where the effect of a mutation is determined by interactions with two or more other mutations-makes small, but detectable, contributions to genotype-fitness maps. While epistasis between pairs of mutations is known to be an important
Zachary R Sailer, Michael J Harms
doaj   +1 more source

A network model for the correlation between epistasis and genomic complexity. [PDF]

open access: yesPLoS ONE, 2008
The study of genetic interactions (epistasis) is central to the understanding of genome organization and evolution. A general correlation between epistasis and genomic complexity has been recently shown, such that in simpler genomes epistasis is ...
Rafael Sanjuán, Miguel R Nebot
doaj   +1 more source

Comparison of the Accuracy of Epistasis and Haplotype Models for Genomic Prediction of Seven Human Phenotypes

open access: yesBiomolecules, 2023
The accuracy of predicting seven human phenotypes of 3657–7564 individuals using global epistasis effects was evaluated and compared to the accuracy of haplotype genomic prediction using 380,705 SNPs and 10-fold cross-validation studies.
Zuoxiang Liang   +2 more
doaj   +1 more source

Consequences of Epistasis on Growth in an Erhualian × White Duroc Pig Cross. [PDF]

open access: yesPLoS ONE, 2017
Epistasis describes an interaction between the effects of loci. We included epistasis in quantitative trait locus (QTL) mapping of growth at a series of ages in a cross of a Chinese pig breed, Erhualian, with a commercial line, White Duroc.
Lucy Crooks, Yuanmei Guo
doaj   +1 more source

PyToxo: a Python tool for calculating penetrance tables of high-order epistasis models

open access: yesBMC Bioinformatics, 2022
Background Epistasis is the interaction between different genes when expressing a certain phenotype. If epistasis involves more than two loci it is called high-order epistasis. High-order epistasis is an area under active research because it could be the
Borja González-Seoane   +3 more
doaj   +1 more source

The impact of epistasis in the heterosis and combining ability analyses

open access: yesFrontiers in Plant Science, 2023
The current theoretical knowledge concerning the influence of epistasis on heterosis is based on a simplified multiplicative model. The objective of this study was to assess how epistasis affects the heterosis and combining ability analyses, assuming ...
José Marcelo Soriano Viana
doaj   +1 more source

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

open access: yesNat Commun
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
Chitra U, Arnold B, Raphael BJ.
europepmc   +2 more sources

Pervasive epistasis exposes intramolecular networks in adaptive enzyme evolution

open access: yesNature Communications, 2023
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
doaj   +1 more source

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