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| Author(s): |
Gerson Oliveira Romão
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | Campinas, SP. |
| Institution: | Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia |
| Defense date: | 2011-10-21 |
| Examining board members: |
Vinicius Castro Souza;
Luiza Sumiko Kinoshita;
Ana Maria Goulart de Azevedo Tozzi;
Gerleni Lopes Esteves;
Julio Antonio Lombardi
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| Advisor: | Vinicius Castro Souza |
| Abstract | |
The present proposal is to support the taxonomic and philogenetic study of Gaylussaaa Kunth. The mainly objective was to accomplish a taxonomic study of the species and of the Gaylussacia section, moreover, to accomplish a phylogenetic study of Vaccinieae tribe, and to verify the relationships among Gaylussacia and other near genera. Ericaceae is a cosmopolitan family, including around 160 genera and nearly 4500 species, it includes herbs until small trees and is distributed mainly in temperate and subtropical regions worldwide. Gaylussacia is typically a American genera, are 63 recognized species and 6 taxa probably unpublished to the science, which 52 are brazilian, eight are Noth Americans and three are from Andes, one between Ecuador/Peru, one between Bolilva/Argentina and one is from Colombia to Venezuela. The elaboration of the taxonomic revision is based on the survey of the Gaylussacia species, first, through bibliographical consults, second, through analysis of the specimens deposited in the Brazilian and European herbaria, third, through field expeditions around Brazil in order to collect fresh material for the phylogenetic studies and to observe the natural habitat. The study will present a monograph of Gaylussacia species, that will consist of descriptions, illustrations, maps and geographical distribution, identification keys for the species and varieties besides taxonomical comments, photografies and phylogenetic study using ITS and trnL~F sequences. The phylogenetic analysis indicates the monophyly of the genus, but it is not the sections. During the research, three new species were published, Gaylussacia luizae G.O. Romão & V.C. Souza, G. paranaensis G.O. Romão & Kinoshita e G. rupestris G.O. Romão & V.C. Souza, besides proprosing three new status: G. bocainae (Sleum.) G.O. Romão & V.C. Souza, G. hilaireana (Sleum.) G.O. Romão & V.C. Souza e G. salviifolia (Sleum.) G.O. Romão & V.C. Souza. It were designed here 37 lectotypes and three neotypes, and identified 12 patterns of geographical distribution for the species of Gaylussacia (AU) | |