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Master's Dissertation
DOI
https://doi.org/10.11606/D.42.2012.tde-09112012-111833
Document
Author
Full name
André Luiz de Oliveira
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2012
Supervisor
Committee
Gruber, Arthur (President)
Oliveira, Paulo Sérgio Lopes de
Wunderlich, Gerhard
Title in Portuguese
GenSeed-HMM: desenvolvimento de uma plataforma para reconstrução de sequências e sua aplicação em dados de sequenciamento de nova geração.
Keywords in Portuguese
Bioinformática
Biologia molecular
Desenvolvimento de software
Sequência do DNA
Sequenciamento genético
Vírus
Abstract in Portuguese
O programa GenSeed, descrito previamente pelo nosso grupo, implementa um método de montagem progressiva dirigida por semente, o qual permite reconstruir sequências de DNA para montagem alvo-específicas partindo-se de sequências semente curtas de DNA ou proteína. Esse programa pode ser aplicado para a reconstrução de fragmentos genômicos, extracromossômicos e cDNAs, mas não é adequado para a reconstrução de sequências utilizando sementes e bases de dados derivadas de amostras heterólogas. O presente trabalho teve como objetivo o desenvolvimento do GenSeed-HMM, uma versão do GenSeed, capaz de utilizar HMMs de perfis como sementes para a reconstrução de sequências específicas, e de processar dados gerados pelas novas plataformas de sequenciamento, incluindo leituras curtas. Este trabalho relata a implementação do programa GenSeed-HMM, e sua validação utilizando dados reais de diferentes plataformas de sequenciamento, originados de procariotos, eucariotos, bem como de amostras metagenômicas.
Title in English
GenSeed-HMM: development of a platform for sequence reconstruction and application on next-generation sequencing data.
Keywords in English
Bioinformatics
DNA sequence
Genetic sequencing
Molecular biology
Software development
Virus
Abstract in English
The program GenSeed, previously described by our group, implements a seed-driven progressive assembly method for target-specific assembly of DNA sequences, starting from short DNA or protein seed sequences. The program can be applied for the reconstruction of genomic fragments, extrachromosomal genomes, and cDNAs, but is not adequate for sequence reconstruction using seed sequences and databases derived from heterologous samples. The present work aimed at developing GenSeed-HMM, a new version of GenSeed program that can use profile HMMs as seeds for the reconstruction of specific sequences, and incorporates the ability to work with data generated by the new sequencing platforms, including short reads. This work reports the implementation of GenSeed-HMM program and its validation using real life data produced by different next-generation sequencing platforms, and originated from prokaryotic, eukaryotic and metagenomic samples.
 
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Publishing Date
2013-02-08
 
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