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Estimation of Breeding Values of Inbred Lines using Best Linear Unbiased Prediction (BLUP) and Genetic Similarities

Institute of Crop Science and Resource Conservation, Univ. of Bonn, Katzenburgweg 5, D-53115 Bonn, Germany

View larger version (32K): [in a new window]   Fig. 1. Mean genotypic value of the simulated fraction selected by adjusted line mean, best linear unbiased prediction considering environmental effects (BLUP[E]), best line unbiased prediction considering environmental effects and pedigree information (BLUP[E+A]), and best linear unbiased prediction considering environmental effects and genetic similarities (BLUP[E+GS]) for different heritabilities h2 ([a] h2 = 0.9; [b] h2 = 0.5; [c] h2 = 0.1). The considered designs are balanced (0% missing values) or unbalanced (30, 60, and 90% missing values randomly distributed in the dataset). See Table 2, 3, and 4 for significant differences between selection strategies.

View larger version (10K): [in a new window]   Fig. 2. Difference (%) between the mean phenotypic values of the lines selected by best linear unbiased prediction considering environmental effects (BLUP[E]) and the lines selected by best linear unbiased prediction considering environmental effects and genetic similarities (BLUP[E+GS]) for different heritabilities assuming a balanced design. The results of both spring barley accessions and simulated inbred lines are compared among each other.