Taxonomy and biogeography of Cyathus Haller species (Nidulariaceae, Basidiomycota), with an emphasis on neotropical species
Biodiversity, biogeography, bird's nest fungi, systematics, taxonmy
The genus Cyathus, popularly known as “bird's nest fungi”, are vase or cone-shaped organisms with internal structures similar to small eggs inside a bird's nest. The genus has a cosmopolitan distribution and plays an essential role in the degradation of plant matter and nutrient cycling. With the use of molecular data only to understand phylogenetic relationships, the data generated can be used to support ecological and biogeographical studies. Previous studies have shown that biogeographical changes in the environment may have influenced the dispersal of Cyathus in the Neotropics, especially in highland wetlands. In addition, morphological characters suggest possible adaptations of these taxa in these regions. Based on this, this project aims to evaluate and discuss the relationships between the environment and the characters used for studies on Cyathus, using morphological, molecular, biogeographical and ecological data. To this, morphological and molecular analyses (ITS, LSU, RPB2) will be carried out, along with the reconstruction of ancestral states using molecular clocks and modeling of the potential distribution of the species. With this, we expect to understand the evolutionary history of Cyathus in the Neotropics, through the integration of different methods, knowing the diversification and distribution patterns of the genus, allowing the development of emerging conservation initiatives for these organisms.