Consulta: subjectFacets:"Mixed model equations"
Registros recuperados: 1
Data/hora: 03/06/2024 09:24:59

Use of direct and iterative solvers for estimation of SNP effects in genome-wide selection
Provedor de dados: Genetics and Molecular Biology
Autores: Pimentel,Eduardo da Cruz Gouveia; Sargolzaei,Mehdi; Simianer,Henner; Schenkel,Flávio Schramm; Liu,Zengting; Fries,Luiz Alberto; Queiroz,Sandra Aidar de.
The aim of this study was to compare iterative and direct solvers for estimation of marker effects in genomic selection. One iterative and two direct methods were used: Gauss-Seidel with Residual Update, Cholesky Decomposition and Gentleman-Givens rotations. For resembling different scenarios with respect to number of markers and of genotyped animals, a simulated data set divided into 25 subsets was used. Number of markers ranged from 1,200 to 5,925 and number of animals ranged from 1,200 to 5,865. Methods were also applied to real data comprising 3081 individuals genotyped for 45181 SNPs. Results from simulated data showed that the iterative solver was substantially faster than direct methods for larger numbers of markers. Use of a direct solver may allow...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeding value; Genomic selection; Mixed model equations; Numerical method.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000100033