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Revisiting Dominance in Population Genetics [PDF]

open access: goldGenome Biology and Evolution
Abstract Dominance refers to the effect of a heterozygous genotype relative to that of the two homozygous genotypes. The degree of dominance of mutations for fitness can have a profound impact on how deleterious and beneficial mutations change in frequency over time as well as on the patterns of linked neutral genetic variation ...
Chenlu Di   +2 more
exaly   +4 more sources

Evaluation of a new additive-dominance genomic model and implications for quantitative genetics and genomic selection [PDF]

open access: goldScientia Agricola, 2021
: The Fisher’s infinitesimal model is traditionally used in quantitative genetics and genomic selection, and it attributes most genetic variance to additive variance.
Taiana Lopes Rangel Miranda   +7 more
doaj   +2 more sources

The dominance model for heterosis explains culm length genetics in a hybrid sorghum variety [PDF]

open access: goldScientific Reports, 2021
Heterosis helps increase the biomass of many crops; however, while models for its mechanisms have been proposed, it is not yet fully understood. Here, we use a QTL analysis of the progeny of a high-biomass sorghum F1 hybrid to examine heterosis.
Shumpei Hashimoto   +11 more
doaj   +2 more sources

Dominance, Epistasis and the Genetics of Postzygotic Isolation [PDF]

open access: bronzeGenetics, 2000
AbstractThe sterility and inviability of species hybrids can be explained by between-locus “Dobzhansky-Muller” incompatibilities: alleles that are fit on their “normal” genetic backgrounds sometimes lower fitness when brought together in hybrids.
Michael Turelli, H. Allen Orr
openalex   +3 more sources

Dual genetic mechanisms of heterosis: population structure and gene action [PDF]

open access: yesFrontiers in Plant Science
IntroductionHeterosis refers to the superiority of a hybrid over its parents. Existing heterosis theory has not sufficiently addressed the contribution of inbreeding at both population level and the level of individual lines within populations.
Fernando S. Aguilar   +2 more
doaj   +2 more sources

Genetics characteristics donor dominance short stem and large grain winter rye (Secale cereale L.)

open access: diamondPlant Varieties Studying and Protection, 2010
By means of directed selection during 39 generations of Rye plants bearing the highest expression of short stem in combination with largest size of grain, a donor of dominant short stem and recessive complimentary or epistatic large size grain has been ...
В. В. Скорик   +3 more
doaj   +3 more sources

Mixed model methods for genomic prediction and variance component estimation of additive and dominance effects using SNP markers. [PDF]

open access: yesPLoS ONE, 2014
We established a genomic model of quantitative trait with genomic additive and dominance relationships that parallels the traditional quantitative genetics model, which partitions a genotypic value as breeding value plus dominance deviation and ...
Yang Da   +3 more
doaj   +3 more sources

Benefits of Dominance over Additive Models for the Estimation of Average Effects in the Presence of Dominance

open access: yesG3: Genes, Genomes, Genetics, 2017
In quantitative genetics, the average effect at a single locus can be estimated by an additive (A) model, or an additive plus dominance (AD) model. In the presence of dominance, the AD-model is expected to be more accurate, because the A-model falsely ...
Pascal Duenk   +3 more
doaj   +3 more sources

Host specialisation or generalism? Population genetics of the aphid Myzus persicae reveals dominance of superclones across diverse host plants [PDF]

open access: goldFrontiers in Ecology and Evolution
Most phytophagous insect species are specialized to feed on a narrow range of host plants, typically within the same genus or family, and sometimes even on a single plant species.
Yannis Nio   +13 more
doaj   +2 more sources

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