نتایج جستجو برای: including i genomic best linear unbiased prediction gblup

تعداد نتایج: 2908604  

2015
Christina Lehermeier Chris-Carolin Schön

Plant breeding populations exhibit varying levels of structure and admixture; these features are likely to induce heterogeneity of marker effects across subpopulations. Traditionally, structure has been dealt with as a potential confounder, and various methods exist to “correct” for population stratification. However, these methods induce a mean correction that does not account for heterogeneit...

2016
Xinyue Zhang Daniela Lourenco Ignacio Aguilar Andres Legarra Ignacy Misztal

Genomic Best Linear Unbiased Predictor (GBLUP) assumes equal variance for all single nucleotide polymorphisms (SNP). When traits are influenced by major SNP, Bayesian methods have the advantage of SNP selection. To overcome the limitation of GBLUP, unequal variance or weights for all SNP are applied in a method called weighted GBLUP (WGBLUP). If only a fraction of animals is genotyped, single-s...

2012
Jian Zeng Marcin Pszczola Anna Wolc Tomasz Strabel Rohan L Fernando Dorian J Garrick Jack CM Dekkers

BACKGROUND The goal of this study was to apply Bayesian and GBLUP methods to predict genomic breeding values (GEBV), map QTL positions and explore the genetic architecture of the trait simulated for the 15th QTL-MAS workshop. METHODS Three methods with models considering dominance and epistasis inheritances were used to fit the data: (i) BayesB with a proportion π = 0.995 of SNPs assumed to h...

Journal: :Journal of animal science 2013
S Bolormaa J E Pryce K Kemper K Savin B J Hayes W Barendse Y Zhang C M Reich B A Mason R J Bunch B E Harrison A Reverter R M Herd B Tier H-U Graser M E Goddard

The aim of this study was to assess the accuracy of genomic predictions for 19 traits including feed efficiency, growth, and carcass and meat quality traits in beef cattle. The 10,181 cattle in our study had real or imputed genotypes for 729,068 SNP although not all cattle were measured for all traits. Animals included Bos taurus, Brahman, composite, and crossbred animals. Genomic EBV (GEBV) we...

2017
Massaine Bandeira E Sousa Jaime Cuevas Evellyn Giselly de Oliveira Couto Paulino Pérez-Rodríguez Diego Jarquín Roberto Fritsche-Neto Juan Burgueño Jose Crossa

Multi-environment trials are routinely conducted in plant breeding to select candidates for the next selection cycle. In this study, we compare the prediction accuracy of four developed genomic-enabled prediction models: (1) single-environment, main genotypic effect model (SM); (2) multi-environment, main genotypic effects model (MM); (3) multi-environment, single variance G×E deviation model (...

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