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A stage-wise approach for the analysis of multi-environment trials.
(University of Nairobi, 2012)
Plant breeders and variety testing agencies routinely test candidate genotypes (crop varieties, lines, test hybrids) in multiple environments. Such multi-environment trials can be efficiently analysed by mixed models. A ...
Comparisons of single-stage and two-stage approaches to genomic selection.
(University of Nairobi, 2013)
Genomic selection (GS) is a method for predicting breeding values of plants or animals using many molecular markers that is commonly implemented in two stages. In plant breeding the first stage usually involves computation ...
The distribution of large herbivore hotspots in relation to environmental and anthropogenic correlates in the Mara region of Kenya.
(University of Nairobi, 2012)
1. The distributions of large herbivores in protected areas and their surroundings are becoming increasingly restricted by changing land use, with adverse consequences for wildlife populations. 2. We analyse changes in ...
Genomic selection using regularized linear regression models: ridge regression, lasso, elastic net and their extensions.
(University of Nairobi, 2012)
BACKGROUND:
Genomic selection (GS) is emerging as an efficient and cost-effective method for estimating breeding values using molecular markers distributed over the entire genome. In essence, it involves estimating the ...
A comparison of random forests, boosting and support vector machines for genomic selection.
(University of Nairobi, 2011)
BACKGROUND:
Genomic selection (GS) involves estimating breeding values using molecular markers spanning the entire genome. Accurate prediction of genomic breeding values (GEBVs) presents a central challenge to contemporary ...
Pre-selection of markers for genomic selection.
(University of Nairobi, 2011)
BACKGROUND:
Accurate prediction of genomic breeding values (GEBVs) requires numerous markers. However, predictive accuracy can be enhanced by excluding markers with no effects or with inconsistent effects among crosses ...