Estudos sistemáticos, filogenéticos e biogeográficos na família Gleicheniaceae C. Presl. (Polypodiopsida)

Abstract

The fern family Gleicheniaceae family has about 157 species with a pantropical distribution. Currently, seven genera are recognized to the family, but their monophyly is questionable, due to insufficient sampling of the molecular phylogeny works that support them. Additionally, these works focus on species from australasia. Similarly, works dealing with biogeography and the evolution of characters in the light of phylogeny are absent. Furthermore, the family has an intricate taxonomy and more work is needed to address this gap. Thus, the present work aimed to test the monophyly of the genera of Gleicheniaceae; to produce a molecular phylogeny for the family based on DNA sequences; carry out taxonomic and nomenclatural studies to delimit the circumscription of the species, to carrying out nomenclatural updates and typifications; to determine the main historical and biogeographic patterns related more precisely to its current family distribution. As a result, a new phylogenetic overview for the family is presented based on molecular data on a genomic scale, as well as novelties on the taxonomy, nomenclature, anatomy and biogeography of Gleicheniaceae.