Genomic structure of the open reading frames of the VvAOMT genes cluster on chromosome 1. The continuous lines represent sections drawn at the right scale; dashed lines represent change in scale. Lines between dots represent the sequenced fragments. The filled boxes indicate the exons. Data correspond to the 12X genome annotation available from the Genoscope Grape Genome Browser database http://www.genoscope.cns.fr/externe/GenomeBrowser/Vitis/.