Editorial: Genomic selection with numerically small reference populations
نویسندگان
چکیده
منابع مشابه
Genotyping strategies for genomic selection in small dairy cattle populations.
This study evaluated different female-selective genotyping strategies to increase the predictive accuracy of genomic breeding values (GBVs) in populations that have a limited number of sires with a large number of progeny. A simulated dairy population was utilized to address the aims of the study. The following selection strategies were used: random selection, two-tailed selection by yield devi...
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In livestock, genomic selection (GS) has primarily been investigated by simulation of purebred populations. Traits of interest are, however, often measured in crossbred or mixed populations with uncertain breed composition. If such data are used as the training data for GS without accounting for breed composition, estimates of marker effects may be biased due to population stratification and ad...
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I N his mathematical analyses of evolutionary processes WRIGHT ( 193 1, 1937) has given particular attention to the interaction of population size with the factors of selection, mutation and migration. Here he introduced the powerful concept of the "gene frequency distribution" which may be thought of as referring either to similar loci in the same population or one locus in many populations. I...
متن کاملSelection for recombination in small populations.
The reasons that sex and recombination are so widespread remain elusive. One popular hypothesis is that sex and recombination promote adaptation to a changing environment. The strongest evidence that increased recombination may evolve because recombination promotes adaptation comes from artificially selected populations. Recombination rates have been found to increase as a correlated response t...
متن کاملSmall populations corrections for selection-mutation models
We consider integro-differential models describing the evolution of a population structured by a quantitative trait. Individuals interact competitively, creating a strong selection pressure on the population. On the other hand, mutations are assumed to be small. Following the formalism of [17], this creates concentration phenomena, typically consisting in a sum of Dirac masses slowly evolving i...
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ژورنال
عنوان ژورنال: Animal
سال: 2016
ISSN: 1751-7311
DOI: 10.1017/s1751731116000379