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. 2001 Jan;125(1):406–422. doi: 10.1104/pp.125.1.406

Figure 2.

Figure 2

Figure 2

Figure 2

Figure 2

Figure 2

Figure 2

Marker regression histograms for traits associated with salt tolerance. The x axis represents the length of the chromosome together with the location of molecular markers in centimorgans. Each vertical bar at a marker position represents the level of additive effect (Add.Eff.) of the marker position on the trait scores. Because the significance of the effect is highest at the location of the QTL and reduces with centimorgan distance either side of it, a graph can be superimposed on the histogram indicating the estimated QTL position along the chromosome. A, Na+ uptake, chromosome 1; B, Na+:K+ ratio, chromosome 1; C, K+ concentration, chromosome 1; D, Na+ concentration, chromosome 4; E, Na+:K+ ratio, chromosome 4; F, K+ uptake, chromosome 4; G, K+ concentration, chromosome 4; H, dry mass, chromosome 6; I, K+ concentration, chromosome 6; J, Na+ concentration, chromosome 6; K, K+ uptake, chromosome 9.