Non-additive genetic effect in animal selection
2001
Lukaszewicz, M. (Polish Academy of Sciences, Jastrzebiec (Poland). Inst. of Genetics and Animal Breeding)
Genetic evaluation of purebred farm animals has been carried out for about half century, employing additive approximation to describe the genetic background. An evaluated animal has been attributed a single breeding value for each trait of breeding goal. The predicted additive genetic value of an animal equals the average breeding value of its parents. Although the selection based on the additive approach has proved successful, there still is possibility of increasing the reliability of the breeding value estimation by accounting for non-additive genetic effects of dominance and epistasis, disregarded in the additive model. In the non-additive model, the expected quality of the progeny equals the average of the parents plus an effect resulting from the interaction between the parents
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