Genetic and demographic signatures accompanying the evolution of the selfing syndrome in Daphne kiusiana, an evergreen shrub.

Our results suggest that the selfing-associated morphological changes in D. kiusiana are of relatively old origin (at least 100 Kya) and were driven by directional selection for efficient self-pollination. We provide evidence that the evolution of selfing syndrome in D. kiusiana is not strongly associated with a severe population bottleneck.