Full text
| |
| Author(s): |
Patricia Pilisson Cogo
Total Authors: 1
|
| Document type: | Master's Dissertation |
| Press: | Campinas, SP. |
| Institution: | Universidade Estadual de Campinas (UNICAMP). Instituto de Computação |
| Defense date: | 2007-02-23 |
| Examining board members: |
João Meidanis;
Maria Emilia Machado Telles Walter;
Jacques Wainer
|
| Advisor: | João Meidanis |
| Abstract | |
The evolution in genomic sequencing techniques has resulted in a large amount of genomic data. The challenge that arises from this scenario is to analyze these data and to extract from them relevant biologic information. In this context, taxonomic analysis of complete genome sequences is still an open problem. Futhermore, it is critical for procaryotes, which still lack a clear definition of species, and whose taxonomic classification is in continuous evolution, where complete genomes comparison may well play a significant role. In this work, we propose a methodology to compare complete genomes based on genome rearrangement theory. We have applied our method to organisms of Vibrionaceae family ¿ a heterogeneous family that comprehends organisms from five different genera, including the agent responsible for cholera, a severe disease in developing countries. The genomic distances obtained when we analysed each chromosome individually are in agreement with phylogenic trees built using other genomic methods. This result validates our method and the genomic rearrangement theory as an alternative to analyze complete genomes. It also can indicate the importance played by rearrangement events in the vibrio genomic evolution. The understanding of these events, combined with other genomic methods, can play an important role in the construction of a robust vibrio phylogeny (AU) | |