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DNA sequence‐based analysis of the Pseudomonas species
Author(s) -
Mulet Magdalena,
Lalucat Jorge,
GarcíaValdés Elena
Publication year - 2010
Publication title -
environmental microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.954
H-Index - 188
eISSN - 1462-2920
pISSN - 1462-2912
DOI - 10.1111/j.1462-2920.2010.02181.x
Subject(s) - biology , rpob , phylogenetic tree , housekeeping gene , 16s ribosomal rna , pseudomonas fluorescens , microbiology and biotechnology , pseudomonas stutzeri , sequence analysis , pseudomonadales , phylogenetics , genetics , gene , pseudomonas aeruginosa , bacteria , gene expression
Summary Partial sequences of four core ‘housekeeping’ genes (16S rRNA, gyrB , rpoB and rpoD ) of the type strains of 107 Pseudomonas species were analysed in order to obtain a comprehensive view regarding the phylogenetic relationships within the Pseudomonas genus. Gene trees allowed the discrimination of two lineages or intrageneric groups (IG), called IG P. aeruginosa and IG P. fluorescens . The first IG P. aeruginosa , was divided into three main groups, represented by the species P. aeruginosa , P. stutzeri and P. oleovorans. The second IG was divided into six groups, represented by the species P. fluorescens , P. syringae , P. lutea , P. putida , P. anguilliseptica and P. straminea . The P. fluorescens group was the most complex and included nine subgroups, represented by the species P. fluorescens , P. gessardi , P. fragi , P. mandelii , P. jesseni , P. koreensis , P. corrugata , P. chlororaphis and P. asplenii . Pseudomonas rhizospherae was affiliated with the P. fluorescens IG in the phylogenetic analysis but was independent of any group. Some species were located on phylogenetic branches that were distant from defined clusters, such as those represented by the P. oryzihabitans group and the type strains P. pachastrellae , P. pertucinogena and P. luteola . Additionally, 17 strains of P. aeruginosa , ‘ P. entomophila ’, P. fluorescens , P. putida , P. syringae and P. stutzeri , for which genome sequences have been determined, have been included to compare the results obtained in the analysis of four housekeeping genes with those obtained from whole genome analyses.