Probe classifications and enrichment in specific categories.

aThe repetitive nature of each probe was determined by comparing to the B73 reference genome. All probes that satisfy criteria (see Methods for details) for cereal repeat, crosshyb or multi-copy were designated as repetitive.
bThe probes were each classified based upon the most significant similarity to the Mo17 WGS sequence from JGI. The full definition for each category can be found in the Methods section.