BIOLOGICAL ASPECTS OF Freziera atlantica Zorzanelli & Amorim (PENTAPHYLACACEAE)
Name: JOÃO PAULO FERNANDES ZORZANELLI
Publication date: 28/02/2019
Advisor:
Name |
Role |
|---|---|
| SUSTANIS HORN KUNZ | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| DAYVID RODRIGUES COUTO | External Examiner * |
| SUSTANIS HORN KUNZ | Advisor * |
| TATIANA TAVARES CARRIJO | Co advisor * |
Summary: Freziera is a predominantly Andean genus belonging to the family Pentaphylacaceae. Freziera atlantica, described in 2015, is the only known species of the genus for the Atlantic Forest, poorly known to few populations distributed exclusively in the states of Espírito Santo and Bahia. Because the species has been recently described, the aspects related to its biology and ecology is unknown, making it difficult to establish adequate conservation strategies for its populations. Thus, the goals of this work are: a) to expand the biological knowledge of the species and to complement its description; and b) to measure the population genetic diversity based on molecular markers (ISSR). To achieve these goals we obtained biological materials from the known populations of the species, intended for: 1) the study of morphology, taxonomy and geometric morphometry by means of images; and 2) the extraction, quantification and amplification of DNA fragments used in the photodocumentation and counting of bands, providing the estimation of diversity, similarity and genetic structuration. As main results, we classified the species as gynodioecious and we complement the description using information from bisexual morphotypes. Finally, we consider high genetic diversity based on results found for species well related to F. atlantica, while similarity and structure show low genetic heterogeneity. Our results have made it possible to fill important gaps in the biological knowledge of F. atlantica and provide opportunities for conservation and advances in ecological-functional and biological studies of the species.
Key-words: biological conservation, genetic diversity, sexual systems, taxonomy.
