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Improving genomic prediction of growth and wood traits in Eucalyptus using phenotypes from non-genotyped trees by single-step GBLUP
(Elsevier, 2019-03-28)
Genomic Best Linear Unbiased Prediction (GBLUP) in tree breeding typically only uses information from genotyped trees. However, information from phenotyped but non-genotyped trees can also be highly valuable. The single-step ...
Comparison of GWA statistical methods for traits under different genetic structures: A simulation study
(2020-11-01)
Several methods have been used to perform genome wide association (GWA) studies, aiming to map quantitative trait loci (QTL) and candidate variants. The single-step genomic best linear unbiased prediction (ssGBLUP) method ...
Assessing the value of phenotypic information from non-genotyped animals for QTL mapping of complex traits in real and simulated populations
(2016-06-21)
Background: QTL mapping through genome-wide association studies (GWAS) is challenging, especially in the case of low heritability complex traits and when few animals possess genotypic and phenotypic information. When most ...
Genome-wide prediction for complex traits under the presence of dominance effects in simulated populations using GBLUP and machine learning methods
(2020-06-01)
The aim of this study was to compare the predictive performance of the Genomic Best Linear Unbiased Predictor (GBLUP) and machine learning methods (Random Forest, RF; Support Vector Machine, SVM; Artificial Neural Network, ...
Comparação entre modelos de análise genômica utilizando dados simulados e dados reais em ovinos
(Universidade Estadual Paulista (Unesp), 2015-07-29)
In Chapter 2 the objective of the work was to evaluate the quality of the genetic merit of predictions between BLUP and GBLUP methods in the presence of uncertainty in the data. In chapter 3 the objective was to compare ...
Power of QTL mapping of different genome-wide association methods for traits under different genetic structures: a simulation study
(Universidade Estadual Paulista (Unesp), 2018-02-27)
The complexity of the traits that can present different genetic structures, such as polygenic or affected by genes of major effect, in addition to different heritabilities, among other factors, make the detection of QTLs ...
Seleção genômica para precocidade sexual de machos da raça Nelore
(Universidade Estadual Paulista (Unesp), 2021-08-10)
O objetivo deste trabalho foi avaliar a aplicação de diferentes modelos e testar diferentes cenários de treinamento e validação para a predição de valores genômicos para Idade à Puberdade de Machos (IPM), em bovinos da ...
Metafounders May Reduce Bias in Composite Cattle Genomic Predictions
(2021-08-20)
Metafounders are pseudo-individuals that act as proxies for animals in base populations. When metafounders are used, individuals from different breeds can be related through pedigree, improving the compatibility between ...