White campion (Silene latifolia, Caryophyllaceae) is a classical model species for studies of sex determination and chromosome evolution in dioecious plants. Deletion mapping this revealed the presence two Y-linked determining genes—the stamen promoting factor (SPF) gene gynoecium suppressing (GSF), which inspired development classic ‘two genes’ dioecy evolution. We recently identified GSFY tha...

The outcome of plant-animal interactions in dioecious plant species frequently depends on the gender of the plant individuals. It has even been proposed that these interactions could mediate the evolution of plant reproductive systems from hermaphroditism to dioecy. Gynodioecy is the most frequent intermediate stage in this evolutionary process, however, little is known about the relevance of g...

Our research focused on the reproductive phenology of Mauritiella armata, a key veredas species in southeastern Brazil, and aspects its floral fruit morphology sexual system. We observed phenological patterns M. armata for 36 months, examined relationships between phenophases environmental variables to describe relation filters, as well morphologies, system (to evaluate dioecy), biometry parts....

How and why diverse sexual systems evolve are fascinating evolutionary questions, but few empirical studies have dealt with these questions in animals. Pedunculate (gooseneck) barnacles show such diversity, including simultaneous hermaphroditism, coexistence of dwarf males and hermaphrodites (androdioecy), and coexistence of dwarf males and females (dioecy). Here, we report the first phylogenet...