Sliding windows of Tajima's D tests along promoters (A) and transcriptional units (B) of CBF1 , – 2 , and – 3. Regions with significant positive or negative values (p < 0.05) are labeled with an asterisk (*). The scale of the sliding window plot was adjusted for the promoter regions. The last (3' end) sites of the promoter sequences of CBF1, -2, and -3 were placed in the same position. A transcriptional unit structure was placed under the corresponding nucleotide position. The window size is 100 bp, and the step size is 20 bp. An explanation of the boxes is given in the legend of Figure 1.