Figure 3.—

Efficiency, expressed as the cost-corrected noncentrality parameter (CNCP), of the direct (Equation 17), full-sib (FS, Equation 20), and classic half-sib designs (HS, Equation 18), when the cost of phenotyping varies relative to the cost of genotyping. For each indirect design, we first estimated the optimal values of m and n for the relative cost of phenotyping vs. genotyping (C_P), using Equations 21 and 19, respectively. For this example, the narrow-sense heritability was set at 0.2 and the QTN explained 5% of the phenotypic variance.