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Article
Open AccessGenome-wide association studies for methane emission and ruminal volatile fatty acids using Holstein cattle sequence data
Methane emission by ruminants has contributed considerably to the global warming and understanding the genomic architecture of methane production may help livestock producers to reduce the methane emission fro...
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Article
Open AccessGenome-wide association study for feed efficiency and growth traits in U.S. beef cattle
Single nucleotide polymorphism (SNP) arrays for domestic cattle have catalyzed the identification of genetic markers associated with complex traits for inclusion in modern breeding and selection programs. Usin...
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Article
Open AccessAccuracy of prediction of simulated polygenic phenotypes and their underlying quantitative trait loci genotypes using real or imputed whole-genome markers in cattle
More accurate genomic predictions are expected when the effects of QTL (quantitative trait loci) are predicted from markers in close physical proximity to the QTL. The objective of this study was to quantify t...
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Article
Open AccessQTLs associated with dry matter intake, metabolic mid-test weight, growth and feed efficiency have little overlap across 4 beef cattle studies
The identification of genetic markers associated with complex traits that are expensive to record such as feed intake or feed efficiency would allow these traits to be included in selection programs. To identi...
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Article
Open AccessLarge-effect pleiotropic or closely linked QTL segregate within and across ten US cattle breeds
The availability of high-density SNP assays including the BovineSNP50 (50 K) enables the identification of novel quantitative trait loci (QTL) and improvement of the resolution of the locations of previously m...
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Article
Open AccessRecombination locations and rates in beef cattle assessed from parent-offspring pairs
Recombination events tend to occur in hotspots and vary in number among individuals. The presence of recombination influences the accuracy of haplotype phasing and the imputation of missing genotypes. Genes th...
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Article
Open AccessGenome-wide association and prediction of direct genomic breeding values for composition of fatty acids in Angus beef cattlea
As consumers continue to request food products that have health advantages, it will be important for the livestock industry to supply a product that meet these demands. One such nutrient is fatty acids, which ...
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Article
Open AccessComparison of molecular breeding values based on within- and across-breed training in beef cattle
Although the efficacy of genomic predictors based on within-breed training looks promising, it is necessary to develop and evaluate across-breed predictors for the technology to be fully applied in the beef in...
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Article
Open AccessAccuracy of direct genomic breeding values for nationally evaluated traits in US Limousin and Simmental beef cattle
In national evaluations, direct genomic breeding values can be considered as correlated traits to those for which phenotypes are available for traditional estimation of breeding values. For this purpose, estim...
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Article
Open AccessAccuracies of genomic breeding values in American Angus beef cattle using K-means clustering for cross-validation
Genomic selection is a recently developed technology that is beginning to revolutionize animal breeding. The objective of this study was to estimate marker effects to derive prediction equations for direct gen...
