The probe specific membership probabilities of N 1(μ 1 i ,s 1 i 2) represents the null-hypothesis of “”not absent”", which is the hypothesis under test. False discovery rate correction as described by [64] was applied to both the test for quantifying aberrations as well as to the test for quantifying genomic losses. The data was visualized using the Integrated Genome Browser [65]. The final data set including dead probes and conserved, aberrant and absent genes is shown in additional file 3. Acknowledgements We acknowledge Arie Jan van Winkelhoff for help with the study design and useful discussions. We furthermore gratefully acknowledge Selleck FRAX597 the National Institute of Dental and Craniofacial

Research and the Pathogen Functional Genomics Research Centre of the J. Craig Venter Institute (formerly The Institute for Genomic Research) for providing the Selleck Anlotinib microarrays. Electronic supplementary material find more Additional file 1: Conserved core gene set of P. gingivalis. The conserved core genes of P. gingivalis consisting

of 1476 genes and two ambiguous genes, which are called non-aberrant but absent. (DOC 1 MB) Additional file 2: W83-specific genes 65 genes. aberrant in each test strain of which 39 W83-specific genes (marked in red) (DOC 92 KB) Additional file 3: P. gingivalis CGH data set. Table listing each P. gingivalis probe included in the results of this study in the order of geneID, including annotation. Low adjP-values (<0.05) depicted in yellow indicate aberrance in a test strain. High adj Pvals. absent (>0.99) depicted in red indicate absence in the test strain. Black

rows indicate the dead probes as found on the W83 array in this study. Zooming out gives an overview of the whole genomic diversity along the test strains. (XLS 546 KB) References 1. Hugoson A, Sjodin B, Norderyd O: Trends over 30 years, 1973–2003, in the prevalence and severity of periodontal disease. J Clin Periodontol 2008,35(5):405–414.PubMedCrossRef 2. Phipps KR, Chan BK, Jennings-Holt M, Geurs NC, Reddy MS, Lewis CE, Orwoll ES: Periodontal health of older men: the MrOS dental next study. Gerodontology 2009,26(2):122–129.PubMedCrossRef 3. Skudutyte-Rysstad R, Eriksen HM, Hansen BF: Trends in periodontal health among 35-year-olds in Oslo, 1973–2003. J Clin Periodontol 2007,34(10):867–872.PubMedCrossRef 4. Genco R, Offenbacher S, Beck J: Periodontal disease and cardiovascular disease: epidemiology and possible mechanisms. J Am Dent Assoc 2002,133(Suppl):14S-22S.PubMed 5. Grossi SG, Genco RJ: Periodontal disease and diabetes mellitus: a two-way relationship. Ann Periodontol 1998,3(1):51–61.PubMedCrossRef 6. Loos BG, Craandijk J, Hoek FJ, Wertheim-van Dillen PM, van der Velden U: Elevation of systemic markers related to cardiovascular diseases in the peripheral blood of periodontitis patients. J Periodontol 2000,71(10):1528–1534.