Fig. 7.

PSIPRED secondary structure predictions for the three species with unrooted molars represented in the Dspp sequences. Letters correspond to the most recent ancestor of each tip species where the amino acid at the site under positive selection differed: A, the predicted ancestor of O. cuniculus; B, the predicted ancestor of D. ordii; and C, the predicted ancestor of M. ochrogaster. Structure predictions, the relative confidence of the prediction, and the amino acid sequence for each pair of extant species and ancestor are on the right