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| Author(s): |
Aline Meira Bonfim Mantellatto
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | Jaboticabal. 2016-11-01. |
| Institution: | Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal |
| Defense date: | 2016-10-03 |
| Advisor: | José Maurício Barbanti Duarte; Susana González |
| Abstract | |
Mazama bororo was recently described in 1996 and is considered the most threatened species of Brazilian deer. Due to this, basic aspects of its biology are still unknown. Thus, this research project aims to use DNA extracted from recent specimens and from natural history collections to review the taxonomy, to describe historical distribution and to investigate the existence of phylogeographic patterns on M. bororo. For this purpose, we extracted DNA from 200 samples of turbinate bones obtained from natural history collections and 78 of these were identified from cytochrome b initiator (224bp). We obtained a total of 22 specimens identified as M. bororo. This result allowed identify unpublished areas on historical and perhaps current distribution of M. bororo in states such as Rio Grande do Sul, Minas Gerais, Goiás, Espírito Santo and Bahia. Moreover, the comparison among the DNA from holotype of M. bororo and Mazama americana jucunda indicates that M. bororo corresponds to the subspecies M. americana jucunda, described in 1913, highlighting the need to raise this subspecies to full species status. Our results also demonstrates that M. bororo did not show a genetic structuration of their populations and that their genetic diversity is lower than other species, highlighting the need to increase conservation and environment policy efforts to maintenance of this species. Finally, when we compare the morphological identification available on natural history collections with the identification obtained from molecular markers we found that the error rate resulting from the classification based on morphological characters was 26%. Nevertheless, we expect with the help of DNA from natural history collections will be possible to select non-convergent morphological characters for this group, allowing thus correct morphological identifications. (AU) | |
| FAPESP's process: | 13/05944-7 - Historical patterns of distribution, phylogenetic and phylogeographic relations of small red brocket, Mazama bororo (Duarte, 1996 Mammalia: Cervidae) |
| Grantee: | Aline Meira Bonfim Mantellatto |
| Support Opportunities: | Scholarships in Brazil - Doctorate |