A physical genome map of Pseudomonas aeruginosa PAO.
AUTOR(ES)
Römling, U
RESUMO
A complete macrorestriction map of the 5.9 Mb genome of Pseudomonas aeruginosa PAO (DSM 1707) was constructed by the combination of various one- and two-dimensional pulsed field gel electrophoresis techniques. A total of 51 restriction sites (36 SpeI sites, 15 DpnI sites) were placed on the physical map yielding an average resolution of 110 kb. Several genes encoding virulence factors and enzymes of metabolic pathways were located on the anonymous map by Southern hybridization. Distances between the gene loci were similar on the genetic and physical maps, suggesting an even distribution of genome mobility throughout the bacterial chromosome. The four rRNA operons were organized in pairs of inverted repeats. The two-dimensional macro-restriction techniques described herein are generally applicable for the genome mapping of any prokaryote and lower eukaryote which yields resolvable fragment patterns on two-dimensional pulsed field gels.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=401585Documentos Relacionados
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