* Author for correspondence: jbn2@ cornell. edu The author responsible for distribution of
materials integral to the findings presented in this article in accordance with the policy …

Breeding systems play an essential role in plant sexual reproduction and influence
speciation and extinction processes. However, our understanding of the breeding systems …

Plant mating systems play a key role in structuring genetic variation both within and between
species. In hybrid zones, the outcomes and dynamics of hybridization are usually interpreted …

Reinforcement is the process by which selection against hybridization increases
reproductive isolation between taxa. Much research has focused on demonstrating the …

Premise Understanding how environmental stress affects the strength of mutualisms is
critically important given observed and projected environmental changes. In particular, the …

Characterizing the mechanisms of reproductive isolation between lineages is key to
determining how new species are formed and maintained. In flowering plants, interactions …

With the rise of affordable next generation sequencing technology, introgression—or the
exchange of genetic materials between taxa—is widely perceived to be a ubiquitous …

The process of speciation involves the accumulation of reproductive isolation (RI) between
diverging lineages. Selection can favor increased RI via the process of reinforcement …

The eu-bromelioid clade provides a classic example of an exceptionally rapid radiation, in
which many closely related species are found in sympatry. In this respect, species cohesion …

Premise A central goal of pollination biology is to connect plants with the identity of their
pollinator (s). While predictions based on floral syndrome traits are extremely useful, direct …