Schematic diagram of 5’ upstream and 3’ downstream regions of HvOS1 and HvOS2. Regions 5’ upstream from the ATG translation initiation site, coding regions, and 3’downstream regions are depicted with thick bold black lines. Translation initiation codons, ATG, and stop codons TAG and TGA, respectively, are indicated. Cis acting elements are depicted in colour-coded boxes. Predicted CpG islands and regions used in DNA methylation assays are also depicted with thin black lines.