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| Author(s): |
Maria Cláudia Melo Pacheco de Medeiros
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Instituto de Biociências (IBIOC/SB) |
| Defense date: | 2014-09-23 |
| Examining board members: |
Lucia Garcez Lohmann;
Maria do Carmo Estanislau do Amaral;
Pedro Fiaschi;
Jose Rubens Pirani;
Jefferson Prado
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| Advisor: | Lucia Garcez Lohmann |
| Abstract | |
Tynanthus Miers includes 14 species distributed from southern Mexico to southern Brazil, that occur predominantly in rainforests. All species of Tynanthus are lianas with small flowers and a strongly bilabiate corolla, fruits with raised margins and a smell of cloves in vegetative portions. This thesis comprises a detailed study of the genus, including taxonomic, evolutionary, biogeographical and ecological aspects. The first chapter presents the phylogeny of Tynanthus, reconstructed based on three molecular markers (ndhF, rpl32-trnL and pepC). The phylogeny of Tynanthus corroborated the monophyly of the genus and contributed important information for the circumscription of species with confusing delimitation. In addition, this phylogeny also led to an improved understanding of morphological evolution in the group, as well as provided the basis for a study on the biogeographical history of the genus. The second chapter presents the description of two new species of Tynanthus recognized based on morphological features and corroborated by the molecular phylogenetic analyses. The third chapter presents a monograph of the genus, including detailed morphological descriptions for all species recognized, as well as information on phenology, geographical distribution, taxonomy, illustrations and a key for the identification of all species. The fourth chapter presents a study on the evolution of the ecological niche of Tynanthus, contributing important information for a better understanding of the observed biogeographic patterns (AU) | |
| FAPESP's process: | 10/51579-0 - Taxonomic revision, phylogeny and evolution of the ecological niche of Tynanthus Miers (Bignonieae, Bignoniaceae) |
| Grantee: | Maria Cláudia Melo Pacheco de Medeiros |
| Support Opportunities: | Scholarships in Brazil - Doctorate |