GeneID in "Drosophila"


Autoria(s): Parra Farré, Genís; Blanco, Enrique; Guigó Serra, Roderic
Data(s)

02/07/2013

Resumo

GeneID is a program to predict genes in anonymous genomic sequences designed with a hierarchical structure. In the first step, splice sites, and start and stop codons are predicted and scored along the sequence using position weight matrices (PWMs). In the second step, exons are built from the sites. Exons are scored as the sum of the scores of the defining sites, plus the log-likelihood ratio of a Markov model for coding DNA. In the last step, from the set of predicted exons, the gene structure is assembled, maximizing the sum of the scores of the assembled exons. In this paper we describe the obtention of PWMs for sites, and the Markov model of coding DNA in Drosophila melanogaster. We also compare other models of coding DNA with the Markov model. Finally, we present and discuss the results obtained when GeneID is used to predict genes in the Adh region. These results show that the accuracy of GeneID predictions compares currently with that of other existing tools but that GeneID is likely to be more efficient in terms of speed and memory usage.

Identificador

http://hdl.handle.net/10230/16478

Idioma(s)

cat

Publicador

Cold Spring Harbor Laboratory Press-CSHL Press

Direitos

info:eu-repo/semantics/openAccess

© 2000 Genome Research by Cold Spring Harbor Laboratory Press. Published version available at <a href="http://genome.cshlp.org.">http://genome.cshlp.org.</a> Aquest document està subjecte a Llicència Creative Commons (Attribution-NonCommercial 3.0 Unported License)

<a href="http://creativecommons.org/licenses/by-nc/3.0/">http://creativecommons.org/licenses/by-nc/3.0/</a>

Palavras-Chave #Seqüències de nucleòtids #Genètica -- Informàtica
Tipo

info:eu-repo/semantics/article

info:eu-repo/semantics/publishedVersion