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Figure 1 | Genetics Selection Evolution

Figure 1

From: Accuracy of genomic predictions in Bos indicus (Nellore) cattle

Figure 1

Comparison of empirical and estimated theoretical accuracies (rPEV) with their expectations for 15 traits * in Bos indicus (Nellore) cattle. Colored bars indicate: empirical accuracies calculated as the Pearson’s correlation between deregressed proofs in 2011 for the bulls in the testing set and their DGV, divided by the average accuracy of dEBV in the testing set (empirical accuracies were obtained using four methods of prediction: GBLUP20, GBLUP0, Bayes C and Bayesian LASSO); estimated accuracies (rPEV) were calculated by averaging the individual accuracies (obtained based on diagonal elements of the inverse of the coefficient matrix in GBLUP20) across all animals in the testing set; expected accuracies were calculated with the analytical formula proposed by Daetwyler et al. [32]; *WG = weight gain from birth to weaning (about 205 days of age); Cw, Pw, Mw, Nw = visual scores taken at weaning for carcass conformation, finishing precocity, muscling and navel, respectively; PWG = weight gain from weaning to yearling (about 550 days of age); Cy, Py, My, Ny = visual scores taken at yearling for carcass conformation, finishing precocity, muscling and navel, respectively; SCaw = scrotal circumference adjusted for age and weight; BW = birth weight; GL = gestation length; WI = weaning index, composed of traits evaluated at weaning; FI = final index, composed of traits evaluated at weaning and yearling (FI) [See Additional file 1 for more details].

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