Phaseolus vulgaris v. Glycine max

Syntenic dotplot between Phaseolus and Glycine with syntenic gene pairs colored by synonymous mutation values:

Ks histogram of syntenic gene pairs:

Summary

There clearly exists several populations of syntenic gene pairs. An orthologous set (dark blue lines) that are represented in two copies in Glycine (indicative a whole genome duplication event in that lineage subsequent to the divergence of these lineages); an out-paralogous set (purple) derived from a shared whole genome duplication event in their lineage, and an older out-paralogous set (light blue) that is likely from the eudicot paleohexaploidy event.

Results may be regenerated: http://genomevolution.org/r/58rk