Figure 4.—
Summary of single-marker regression and MAXR/BIC analysis of inbred line data. Each quadrant contains a pair of plots of data for one chromosome (“Chr”). The top plot shows the MAXR/BIC analysis and the bottom plot shows the single-marker regressions. The MAXR/BIC plots give the estimated effect size for each marker selected (i.e., the magnitude of the partial regression coefficient). Some of the coefficients are positive (“pos effect”) and others are negative (“neg effect”). The single-marker regression plots give −log(P-value) for all markers (where the P-value is for the t-test that the coefficient equals 0). The dotted lines labeled “chr ends” represent the first and last markers on the Monsanto composite genetic map. The short vertical lines at the bottom of the MAXR-effect size plots are the positions of all markers analyzed. The short vertical lines at the top of the −log(P-value) plots are the positions of markers with a P-value that is less than the FDR 0.05 threshhold.