title: 16S rRNA gene-based phylogenetic microarray for  simultaneous identification of members of the genus  Burkholderia.
abstract: For cultivation-independent and highly parallel analysis of members of the genus Burkholderia, an oligonucleotide microarray (phylochip) consisting of 131 hierarchically nested 16S rRNA gene-targeted oligonucleotide probes was developed. A novel primer pair was designed for selective amplification of a 1.3 kb 16S rRNA gene fragment of Burkholderia species prior to microarray analysis. The diagnostic performance of the microarray for identification and differentiation of Burkholderia species was tested with 44 reference strains of the genera Burkholderia, Pandoraea, Ralstonia and Limnobacter. Hybridization patterns based on presence/absence of probe signals were interpreted semi-automatically using the novel likelihood-based strategy of the web-tool Phylo- Detect. Eighty-eight per cent of the reference strains were correctly identified at the species level. The evaluated microarray was applied to investigate shifts in the Burkholderia community structure in acidic forest soil upon addition of cadmium, a condition that selected for Burkholderia species. The microarray results were in agreement with those obtained from phylogenetic analysis of Burkholderia 16S rRNA gene sequences recovered from the same cadmiumcontaminated soil, demonstrating the value of the Burkholderia phylochip for determinative and environmental studies.
authors.affiliation: Institute of Plant Biology, Department of Microbiology, University of Zurich, Zollikerstrasse 107, 8008 Zurich, Switzerland.
authors.forename: Susan
authors.initials: S
authors.lastname: Schönmann
authors.forename: Alexander
authors.initials: A
authors.lastname: Loy
authors.forename: Céline
authors.initials: C
authors.lastname: Wimmersberger
authors.forename: Jens
authors.initials: J
authors.lastname: Sobek
authors.forename: Catharine
authors.initials: C
authors.lastname: Aquino
authors.forename: Peter
authors.initials: P
authors.lastname: Vandamme
authors.forename: Beat
authors.initials: B
authors.lastname: Frey
authors.forename: Hubert
authors.initials: H
authors.lastname: Rehrauer
authors.forename: Leo
authors.initials: L
authors.lastname: Eberl
mesh_terms: D019117:Burkholderia / Q000145:classification* / Q000235:genetics*; D017931:DNA Primers / Q000235:genetics; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D008969:Molecular Sequence Data; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods*; D012329:RNA, Bacterial / Q000235:genetics*; D012336:RNA, Ribosomal, 16S / Q000235:genetics*; D012680:Sensitivity and Specificity; D017422:Sequence Analysis, DNA; D012988:Soil Microbiology; D014197:Trees
chemical_list: D017931:DNA Primers; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S