Nevertheless, the substantial additive genetic variances identified suggest that selection has maintained variance within the traits that make up part of the migratory syndrome in this population, rather than favoring an optimal life history or phenotype.
Since we have to generate all possible mixtures of two independent sources maintaining the variance constant, we use the following parameterization: X = α1S1 + α2S2 with α1 = cos and α2 = sin which means that the separation is obtained at θ = kΠ / 2 (k = 0, ± 1, ± 2,…) (ignoring scaling ambiguity).
Moreover, even when epistatic effects exist, this does not reduce the importance of maintaining genetic variance and rare favourable alleles by weighting methods.
The hotdeck with stratification procedure was reasonably good at maintaining the variance at all time points (PV ranged from 0.87 to 1.27).
Irrespective of the number of QTL simulated, BL is superior to RR in maintaining genetic variance and therefore results in higher long-term genetic gain.
A principal component analysis (PCA) was applied to compress the multidimensional miRNA expression data to three dimensions while maintaining the variance (Jolliffe, 2002).
Although a QTL with a small effect and/or with a low frequency of the favourable allele may not be important for short-term gain, it potentially contributes more to long-term genetic gain by maintaining genetic variance over time.
We found that we could calculate an analogous confidence interval metric if the data were adapted by reversing the region around the peak position and adding the RH frequencies of the reversed region to those of the original to create an approximately normal distribution while maintaining the variance of the unedited data.
This study shows that without weighting methods, BL is superior to RR in maintaining genetic variance and controlling inbreeding, and therefore can result in higher long-term genetic gain, regardless of the number of QTL affecting the trait and length of the planning horizon.
This can prevent the depletion of additive genetic variance in males [54], which would maintain the variance of a trait even under the influence of directional selection, thus ultimately allowing individual assessment of male quality.
