title: PseudoMLSA: a database for multigenic sequence analysis of Pseudomonas species.
abstract: BACKGROUND
  The genus Pseudomonas comprises more than 100 species of environmental, clinical, agricultural, and biotechnological interest. Although, the recommended method for discriminating bacterial species is DNA-DNA hybridisation, alternative techniques based on multigenic sequence analysis are becoming a common practice in bacterial species discrimination studies. Since there is not a general criterion for determining which genes are more useful for species resolution; the number of strains and genes analysed is increasing continuously. As a result, sequences of different genes are dispersed throughout several databases. This sequence information needs to be collected in a common database, in order to be useful for future identification-based projects.
  
  
  METHODS
  The PseudoMLSA Database is a comprehensive database of multiple gene sequences from strains of Pseudomonas species. The core of the database is composed of selected gene sequences from all Pseudomonas type strains validly assigned to the genus through 2008. The database is aimed to be useful for MultiLocus Sequence Analysis (MLSA) procedures, for the identification and characterisation of any Pseudomonas bacterial isolate. The sequences are available for download via a direct connection to the National Center for Biotechnology Information (NCBI). Additionally, the database includes an online BLAST interface for flexible nucleotide queries and similarity searches with the user's datasets, and provides a user-friendly output for easily parsing, navigating, and analysing BLAST results.
  
  
  CONCLUSIONS
  The PseudoMLSA database amasses strains and sequence information of validly described Pseudomonas species, and allows free querying of the database via a user-friendly, web-based interface available at http://www.uib.es/microbiologiaBD/Welcome.html. The web-based platform enables easy retrieval at strain or gene sequence information level; including references to published peer-reviewed articles, and direct external links to more specialized strain information databases (StrainInfo) and GeneBank (NCBI). The PseudoMLSA is intended to provide helpful strain-sequence information for a better and more comprehensive discriminative multigenic sequence based analysis of this special group of bacteria, contributing to enhance our understanding of the evolution of Pseudomonas species.
authors.affiliation: Departament de Biologia, Microbiologia, Universitat de les Illes Balears, Campus UIB, 07122 Palma de Mallorca, Spain. toni.bennasar@uib.es
authors.forename: Antoni
authors.initials: A
authors.lastname: Bennasar
authors.forename: Magdalena
authors.initials: M
authors.lastname: Mulet
authors.forename: Jorge
authors.initials: J
authors.lastname: Lalucat
authors.forename: Elena
authors.initials: E
authors.lastname: García-Valdés
mesh_terms: D015373:Bacterial Typing Techniques; D001431:Bacteriological Techniques / Q000379:methods*; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics*; D030561:Databases, Nucleic Acid; D020407:Internet; D011549:Pseudomonas / Q000145:classification* / Q000235:genetics*; D017421:Sequence Analysis / Q000379:methods*
chemical_list: D004269:DNA, Bacterial
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