Revisiting Dominance in Population Genetics [PDF]
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
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Evaluation of a new additive-dominance genomic model and implications for quantitative genetics and genomic selection [PDF]
: 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
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The dominance model for heterosis explains culm length genetics in a hybrid sorghum variety [PDF]
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
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Dominance, Epistasis and the Genetics of Postzygotic Isolation [PDF]
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
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Dual genetic mechanisms of heterosis: population structure and gene action [PDF]
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
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Genetics characteristics donor dominance short stem and large grain winter rye (Secale cereale L.)
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
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Mixed model methods for genomic prediction and variance component estimation of additive and dominance effects using SNP markers. [PDF]
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
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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
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Host specialisation or generalism? Population genetics of the aphid Myzus persicae reveals dominance of superclones across diverse host plants [PDF]
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
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Dominance in human genetics. [PDF]
E. B. Ford
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