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. 2007 Jun;144(2):1052–1065. doi: 10.1104/pp.106.095133

Figure 3.

Figure 3.

Densification of the major QTL region Cdtol-1. A, LG LG3, on which initially eight markers were mapped, is represented. The position in centiMorgans of the markers on LG3 is given by the ruler. The LOD score profile along the LG is represented at the right of the LG. Map positions are plotted along the vertical axis and LOD scores are plotted along the horizontal axis. Dashed lines correspond to the LOD score threshold (2.4) for QTL detection at an error level α = 0.05. The position of a QTL is shown as the interval over which the LOD score is within one or two log units of its maximum value, i.e. at the most likely position of the QTL. Bars indicate the one-LOD (10-fold) support interval and whiskers (lines extending beyond bars) indicate the two-LOD (100-fold) support intervals. The length of the one- and two-LOD support intervals correspond to approximately 5 and 9 cM, respectively. B, Three additional markers At2g10940, At2g14620, and At2g18196 were mapped on LG3 to increase the accuracy of the major QTL position. A reduction in length of the LOD support intervals associated with the QTL Cdtol-1 was obtained: one- and two-LOD support intervals correspond to approximately 4 and 6 cM, respectively.