FIG. 1.

Reproducibility of the background-corrected intensities (Fg − Bg, where Fg is the foreground intensity and Bg is the background intensity) for two hybridizations using DNA of each of the four LAB species with the highest number of oligonucleotides on the microarray: Lactobacillus plantarum LMG 9211, Lactobacillus acidophilus IBB 801, Enterococcus faecalis LMG 8222, and Lactococcus lactis subsp. lactis LDV 22186. The black symbols represent spots for species-specific and cross-hybridizing oligonucleotides. The gray symbols represent spots for unrelated oligonucleotides.