Pollinator scarcity drives the shift to delayed selfing in Himalayan mayapple…

Abstract. Recent molecular phylogenetics have indicated that American mayapple (mainly self-incompatible, SI) and Himalayan mayapple, which was considered to be self-compatible (SC), are sister species with disjunct distribution between eastern Asia and eastern North America.We test a hypothesis that the persistence of this early spring flowering herb in the Himalayan region is attributable …