Synteny of the mapped SNPs from the Wheat660K SNP array (in blue) with that from the Wheat820K array (in green) based on their common CSS-assembled contigs. Notes: The genetic maps of chromosomes 3A, 4B, 5D, 6D and 7B derived from the Wheat820K SNP array are shown in inverted form, with long arms at the top and short arms at the bottom18. In this figure, these inversions were corrected.