^aSyntenic block using Bowers et al. (2003) notation.

^bTotal number of genes on either the a or b homeolog.

^cNumber of retained-as-a-pair genes in each homeolog of a segment and whether or not the pattern of the retained genes over the region is significant. ***P < 0.001; **P < 0.01; *P < 0.05. Italicized and underlined entries are used to indicate a non-statistically significant value.

^dNumber of retained genes in a homeolog/total genes for the homeolog.

^eGenes appearing in clusters above the 95% cutoff (retained and not retained) determined by 1000 random simulations for each syntenic homeolog.

^fSmaller α-regions as defined by Bowers et al. (2003); a/b homelog information is lumped together.