transposable element in the Drosophila virilis species group. Two divergent types of
Penelope have been detected, one previously described, clade I, and a new one which we
have termed clade III. The phylogeny of some copies of the Penelope clade I element was
partially consistent with the species phylogeny of the D. montana subphylad, suggesting
cospeciation and allowing the estimation of the evolutionary rate of Penelope. Divergence …