Microarray-based species identification of Streptomyces spp. isolated from potato scab lesions in Norway. Microarray-based species identification of Streptomyces spp. isolated from potato scab lesions in Norway

28 Streptomyces strains isolated from common scab lesions of potato tubers from a wide geographic range in Norway, were selected for microarray analysis. The selected strains were subjected to species identification by microarray, 16S phylogenetic analysis and PCR; and microarray-based comparative genome analysis. To our knowledge, this is the first report of S. turgidiscabies and S. europaeiscabiei in Norway. Overall design: 28 Norwegian Streptomyces strains were hybridized in duplicates, one S.turgidiscabies strain (St32) and one S.scabies strain (ATCC49173) were hybridized in 4 replicates. Two out of 64 hybridizations failed (replicate hybridizations of Norwegian strains 33 and 44), for a total of 62 samples. Normalization was based on log-ratios against reference strain.