In genome-enabled prediction, parametric, semi-parametric, and non-parametric regression models have been used. This study assessed the predictive ability of linear and non-linear models using dense molecular markers. The linear models were linear on marker effects and included the Bayesian LASSO, Bayesian ridge regression, Bayes A, and Bayes B. The non-linear models (this refers to non-linearity on markers) were reproducing kernel Hilbert space (RKHS) regression, Bayesian regularized neural networks (BRNN), and radial basis function neural networks (RBFNN). These statistical models were compared using 306 elite wheat lines from CIMMYT genotyped with 1717 diversity array technology (DArT) markers and two traits, days to heading (DTH) and grain yield (GY), measured in each of 12 environments. It was found that the three non-linear models had better overall prediction accuracy than the linear regression specification. Results showed a consistent superiority of RKHS and RBFNN over the Bayesian LASSO, Bayesian ridge regression, Bayes A, and Bayes B models.
Comparison Between Linear and Non-parametric Regression Models for Genome-Enabled Prediction in Wheat
P. Pérez-Rodríguez,D. Gianola,J. M. González-Camacho,J. Crossa,Y. Manes,S. Dreisigacker
Published 2012 in G3: Genes, Genomes, Genetics
ABSTRACT
PUBLICATION RECORD
- Publication year
2012
- Venue
G3: Genes, Genomes, Genetics
- Publication date
2012-12-01
- Fields of study
Agricultural and Food Sciences, Medicine, Biology
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
CITATION MAP
EXTRACTION MAP
CLAIMS
- No claims are published for this paper.
CONCEPTS
- No concepts are published for this paper.
REFERENCES
Showing 1-46 of 46 references · Page 1 of 1