Sequence analysis of the 5′-upstream region of DFR1.
(A) Diagrams of 5′-upstream sequences up to -1.5-kb of DFR1 (upper: W3, lower: w3). Note that no polymorphism was detected between three cultivars with the w3 allele. (B) A correlation between the indel and expression of DFR1. The shorter (~200-bp) and longer fragments (~500-bp) result from DFR1 of W3 and w3 alleles, respectively.