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Related to genotypic value: Quantitative genetics, phenotypic value


 (jĕn′ə-tīp′, jē′nə-)
1. The genetic makeup, as distinguished from the physical appearance, of an organism or a group of organisms.
2. The combination of alleles located on homologous chromosomes that determines a specific characteristic or trait.
3. A specific combination of alleles at one or more loci on a chromosome.

[Greek genos, race; see genə- in Indo-European roots + Latin typus, type; see type.]

gen′o·typ′ic (-tĭp′ĭk), gen′o·typ′i·cal adj.
gen′o·typ′i·cal·ly adv.
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Adj.1.genotypic - of or relating to or constituting a genotype; "genotypical pattern"
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The sign of the dominance genotypic value varied, however, suggesting that heterozygotes of different QTLs produced either increased or decreased DA levels (compared to that of the mean of the homozygotes) in these mandible characters.
i3]x Expected frequencies 1/4 Genotypic value [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII.
We refer to these as pure forms of epistasis because there is no overall additive or dominance genotypic value at either locus.
Lynch and Deng (1994) have shown that, when nonadditive gene action contributes to the expression of a trait under selection, sexual reproduction can also result in slippage of the mean genotypic value in the direction contrary to selection.
jj])/2 > 0], the genotypic value for the hybrid between the two parents in later generations will be potentially greater than the mid-parent genotypic values.
For example, with optimizing selection, an allele with a positive genotypic value can have positive or negative fitness effects, depending on the sum of genotypic values for all loci affecting the trait.
GDW(1)], is a measure of the portion of genetic variance of inbred genotypic value that is not heritable.
For the purposes of simulation, the genotypic value of a genotype can be calculated from the definition of gene actions in the GE system.
2:3] line until homozygosity will not change its genotypic value at the locus.
Two modes of gene action are considered here to translate genotype into genotypic value (Table 1): standard additive action or the pure additive x additive epistatic action given by Cheverud and Routman (1996, Table 1).
114) and the dominance deviation, D, as "the difference between the genotypic value G and breeding value A of a particular genotype" (p.
2] indicates that subdivision of a large target region is likely to improve within-subregion selection response only if genotypic value in the subregion and in the undivided region are not highly correlated.