Genotypes or genotypic values are not passed on from parents to progeny; rather, it is the alleles at the loci that influence the traits that are passed on. Therefore, to predict the average genotypic value of progeny and their predicted average phenotype, investigators need to know the effect of alleles in the population rather than the effect of a genotype. The effect of a particular allele on a trait depends on the allele's frequency in the population and the effect of each genotype that includes the allele. This is sometimes termed the average effect of an allele. The additive genetic value of an individual, called the breeding value, is the sum of the average effects of all the alleles the individual carries (Falconer & Mackay, 1996). According to the principles of Mendelian segregation, one allele from each locus is present in each gamete, and in this way, additive genetic values are passed on from parents to progeny. Indeed, because each offspring receives a different set of alleles from its parents, half of the additive genetic variance in the population occurs within families.
Genotypes or genotypic values are not passed on from parents to progeny; rather, it is the alleles at the loci that influence the traits that are passed on. Therefore, to predict the average genotypic value of progeny and their predicted average phenotype, investigators need to know the effect of alleles in the population rather than the effect of a genotype. The effect of a particular allele on a trait depends on the allele's frequency in the population and the effect of each genotype that includes the allele. This is sometimes termed the average effect of an allele. The additive genetic value of an individual, called the breeding value, is the sum of the average effects of all the alleles the individual carries (Falconer & Mackay, 1996). According to the principles of Mendelian segregation, one allele from each locus is present in each gamete, and in this way, additive genetic values are passed on from parents to progeny. Indeed, because each offspring receives a different set of alleles from its parents, half of the additive genetic variance in the population occurs within families.
การแปล กรุณารอสักครู่..
