Results 81 to 90 of about 50,815 (199)

Complexity of evolutionary equilibria in static fitness landscapes [PDF]

open access: yes, 2013
A fitness landscape is a genetic space -- with two genotypes adjacent if they differ in a single locus -- and a fitness function. Evolutionary dynamics produce a flow on this landscape from lower fitness to higher; reaching equilibrium only if a local ...
Kaznatcheev, Artem
core  

Small RNAs regulation and genomic harmony: insights into allopolyploid evolution in marsh orchids (Dactylorhiza)

open access: yesNew Phytologist, EarlyView.
Summary Hybridization and polyploidy are major drivers of plant diversification, often accompanied by shifts in gene expression and genome composition. Small RNAs (smRNAs) are thought to influence such genomic changes, particularly through their interactions with transposable elements (TEs).
Mimmi C. Eriksson   +6 more
wiley   +1 more source

QTL Mapping and Heterosis Analysis for Fiber Quality Traits Across Multiple Genetic Populations and Environments in Upland Cotton

open access: yesFrontiers in Plant Science, 2018
An “immortalized F2” (IF2) population and two reciprocal backcross (HSBCF1 and MARBCF1) populations were constructed to investigate the genetic bases of fiber quality traits in upland cotton across four different environments.
Cong Li   +12 more
doaj   +1 more source

Genetic and Molecular Determinants of Familial Transmission of Skeletal Malocclusions

open access: yesOrthodontics &Craniofacial Research, EarlyView.
ABSTRACT Families studies conducted in different ethnic populations worldwide have helped elucidate the molecular and genetic factors involved in the development of skeletal class III malocclusion. Therefore, the aim of this study is to provide an updated summary.
Alexandra Dehesa‐Santos   +3 more
wiley   +1 more source

wtest: an integrated R package for genetic epistasis testing [PDF]

open access: yesBMC Medical Genomics, 2019
AbstractBackgroundWith the increasing amount of high-throughput genomic sequencing data, there is a growing demand for a robust and flexible tool to perform interaction analysis. The identification of SNP-SNP, SNP-CpG, and higher order interactions helps explain the genetic etiology of human diseases, yet genome-wide analysis for interactions has been ...
Rui Sun   +5 more
openaire   +3 more sources

Structural Variations Contribute to Subspeciation and Yield Heterosis in Rice

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Yield heterosis has been extensively exploited in hybrid breeding, with intersubspecific hybrids often exhibiting the most pronounced effects. However, developing elite hybrids remains a laborious and time‐consuming process. The genetic basis of heterosis has been debated for over a century, hindered largely by the lack of high‐quality genomes.
Zhiwu Dan, Yunping Chen, Wenchao Huang
wiley   +1 more source

Epistasis and its contribution to genetic variance components. [PDF]

open access: yesGenetics, 1995
Abstract We present a new parameterization of physiological epistasis that allows the measurement of epistasis separate from its effects on the interaction (epistatic) genetic variance component. Epistasis is the deviation of two-locus genotypic values from the sum of the contributing single-locus genotypic values.
J M, Cheverud, E J, Routman
openaire   +2 more sources

Epistasis in a model of molecular signal transduction. [PDF]

open access: yesPLoS Computational Biology, 2011
Biological functions typically involve complex interacting molecular networks, with numerous feedback and regulation loops. How the properties of the system are affected when one, or several of its parts are modified is a question of fundamental interest,
Alain Pumir, Boris Shraiman
doaj   +1 more source

The MdICE1/MdFAMA‐MdTYDC Transcriptional Module Confers Cold Tolerance by Regulating Dopamine Metabolism in Apple

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Low temperature is a critical abiotic stress that imposes major constraints on the sustainable development of the fruit tree industry. Although exogenous dopamine has been shown to enhance cold tolerance in plants, its molecular mechanisms in apple (Malus domestica) remain poorly understood.
Kexin Tan   +9 more
wiley   +1 more source

Clinical Implications of Digenic Inheritance and Epistasis in Primary Immunodeficiency Disorders

open access: yesFrontiers in Immunology, 2018
The existence of epistasis in humans was first predicted by Bateson in 1909. Epistasis describes the non-linear, synergistic interaction of two or more genetic loci, which can substantially modify disease severity or result in entirely new phenotypes ...
Rohan Ameratunga   +9 more
doaj   +1 more source

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