Results 21 to 30 of about 59,992 (241)
Journal of Biology, 2009 Epistasis under the classical definition describes only interactions in which one mutant phenotype is masked or suppressed in the presence of the other mutation. The population geneticist's definition includes classical epistasis, but also encompasses 'aggravating' or 'synthetic' interactions – where two mutations together yield a surprisingly ...
Roth, Fritz +2 more
openaire +4 more sources
The Changing Geometry of a Fitness Landscape Along an Adaptive Walk [PDF]
, 2013 It has recently been noted that the relative prevalence of the various kinds of epistasis varies along an adaptive walk. This has been explained as a result of mean regression in NK model fitness landscapes. Here we show that this phenomenon occurs quite
Crona, Kristina, Greene, Devin
core +10 more sources
PyToxo: a Python tool for calculating penetrance tables of high-order epistasis models
BMC 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
Consequences of Epistasis on Growth in an Erhualian × White Duroc Pig Cross. [PDF]
PLoS 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
Pervasive epistasis exposes intramolecular networks in adaptive enzyme evolution
Nature 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
The impact of epistasis in the heterosis and combining ability analyses
Frontiers 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
Recombining your way out of trouble: the genetic architecture of hybrid fitness under environmental stress [PDF]
, 2020 Hybridization between species is a fundamental evolutionary force that can both promote and delay adaptation. There is a deficit in our understanding of the genetic basis of hybrid fitness, especially in non-domesticated organisms.
Bendixsen, D. +5 more
core +1 more source
Physical Constraints on Epistasis [PDF]
Molecular Biology and Evolution, 2020 Abstract Living systems evolve one mutation at a time, but a single mutation can alter the effect of subsequent mutations. The underlying mechanistic determinants of such epistasis are unclear. Here, we demonstrate that the physical dynamics of a biological system can generically constrain epistasis.
Arvind Murugan, Kabir Husain
openaire +4 more sources
Whole-genome sequencing bulked segregant analysis uncovered FW7, a Fusarium wilt resistance gene masked by epistasis in octoploid strawberry. [PDF]
Plant GenomeAbstract Fusarium wilt, a vascular disease of strawberry (Fragaria ×$\times$ ananassa) caused by the soilborne fungal pathogen Fusarium oxysporum f. sp. fragariae, has emerged over the past 20 years as a leading cause of severe plant wilt and death in California and many other parts of the world. We previously described several sources of resistance to
Vachev MV +12 more
europepmc +2 more sources
Frontiers in Genetics, 2022 The rapid growth in genomic selection data provides unprecedented opportunities to discover and utilize complex genetic effects for improving phenotypes, but the methodology is lacking. Epistasis effects are interaction effects, and haplotype effects may
Yang Da +2 more
doaj +1 more source