Gene dispersal processes shape demographic and microevolutionary dynamics of tree
species. Gene dispersal patterns can be studied by spatially explicit methods. Spatial …

We revise the taxonomy of species of the ant genus Cephalotes occurring in Brazil. Sixty-
four species are recognized, distributed in 14 species groups. Five species are described as …

Mass flowering is a widespread blooming strategy among Neotropical trees that has been
frequently suggested to increase geitonogamous pollination. We investigated the pollination …

Polyembryony has been commonly associated with apomixis in the angiosperms and seems
to be more common than expected, even in biomes where sexual reproduction processes …

Polyembryony seems to be advantageous to mother plants in detriment of their siblings
which face competition since the beginning of seed development. This competition may limit …

Breeding systems have been associated with polyploidization and genomic change, which
have a central role in the diversification of Angiosperms. Polyploidy commonly leads to …

Bignoniaceous woody species are very important ecological components of neotropical
forests, but the reproductive biology of many species, such as Cybistax antisyphilitica …

Polyploidy is a key process in plant evolution, with the asexual formation of embryos
representing a way through which polyploids can escape sterility. The association between …

Apomixis is a difficult-to-analyse trait with a complex molecular basis and a substantive
effect on the biology of a species. Thus, apomixis is an interesting characteristic for …

Apomixis, the asexual formation of embryos and seeds, occurs in approximately 18% of
angiosperm families. Melastomataceae exhibits a remarkable number of apomictic species …