This study was carried out to obtain the estimates of genetic variance and covariance components related to intra- and interpopulation in the original populations (C0) and in the third cycle (C3) of reciprocal recurrent selection (RRS) which allows breeders to define the best breeding strategy. For that purpose, the half-sib progenies of intrapopulation (P11 and P22) and interpopulation (P12 an...

Two parental lines of Upland cotton (Gossypium hirsutum L.) plus their reciprocal F(1), F(2), and backcross populations were field-tested for environmental and genetic components of leaf diffusive resistance. Leaf resistance was measured with a diffusion porometer three times each day during 6 days in August. A large, consistent environmental component was present during the morning, afternoon,...

We measured the additive genetic variance within populations and the composite additive, dominance, and epistatic effects contributing to differentiation of photoperiodic response between two southern (ancestral) and each of four progressively more northern (derived) populations of the pitcher-plant mosquito, Wyeomyia smithii. Critical photoperiod and its additive genetic variance but not its h...

Genomic evaluation models can fit additive and dominant SNP effects. Under quantitative genetics theory, additive or “breeding” values of individuals are generated by substitution effects, which involve both “biological” additive and dominant effects of the markers. Dominance deviations include only a portion of the biological dominant effects of the markers. Additive variance includes variatio...

Abstract Genetic variances are important parameters and have a great impact on the determination of optimal breeding strategies tree species. A large clonal testing program was conducted to estimate additive, dominant epistatic for development deployment in Norway spruce (Picea abies (L.) Karst.). The analysis results genetic variation growth wood properties two trials central Sweden indicated ...

Simulation and calculations based on the likelihood function are used to examine the sampling properties of maximum likelihood estimates of variance components due to sex-linked, maternal and dominance effects. Data are assumed to have been collected in an experiment designed specifically to provide a sufficient set of covariances between relatives for this task. Results show that variances due...