Fig. 5From: Features of Ppd-B1 expression regulation and their impact on the flowering time of wheat near-isogenic linesGroups of transcription factor binding sites that are common in the Ppd-1 genes. Vertical dotted lines indicate the borders of a 900-bp region that is commonly deleted in the Ppd-A1 and Ppd-D1 photoperiod insensitive alleles [4, 7]. TSS indicates Transcription Start Site; the distances are presented in base pairsBack to article page