Figure 3

Structure of SPSII genes in wheat and other grasses. Exons are represented by closed boxes separated by horizontal lines representing introns. Exons filled with horizontal blue lines represent regions containing a glycosyltransferase domain, those with horizontal pink lines contains sucrose phosphate synthase/possible sucrose phosphate phosphatase domains. Vertical red bars show the placement of the homoeologue-specific primers, and vertical blue ones the placement of common primers used in combination with the homoeologue-specific ones. Each homoeologue-specific primer pair is shown above a horizontal two headed arrow depicting the amplicon. The two headed arrow horizontal red line for the A genome copy indicates flow-sorted chromosome arm 3A sequences. The two headed arrow horizontal blue lines represent genetically mapped regions. The location of SNPs is depicted by vertical dashed arrows. Asterisks show the location of non-synonymous SNPs. Box on the right hand side of figure depicts the vertical alignment of eleventh exon, amplified in all 10 genomes, to the reference gene at the top.