FIGURE 3.

Sample gene trees (for gene families 31DXWY and 2SH9KY; A and B, respectively), showing clades corresponding to the Cercidoideae (orange and red), Caesalpinioideae (blue and violet), and Papilionoideae (green). Species abbreviations are composed of the first three letters from the genus and the first two letters of the species. Full name correspondences are indicated in the text. Non-legume outgroup sequences are in gray. Red asterisks mark common ancestors of homoeologous sequence pairs. Additional, more recent WGDs within the Papilionoideae are highlighted with colors of the sequence IDs: green for Glycine max and turquoise for Lupinus angustifolius.