In this study a DNA fingerprinting protocol was developed for the identification of rose varieties based on the variability of microsatellites. Microsatellites were isolated from Rosa hybrida L. using enriched small insert libraries. In total 24 polymorphic sequenced tagged microsatellite site (STMS) markers with easily scorable allele profiles, from six different linkage groups, were used to characterize 46 Hybrid Tea varieties and 30 rootstock varieties belonging to different species (Rosa canina L., Rosa indica Thory., Rosa chinensis Jacq., Rosa rubiginosa L., and Rosa rubrifolia glauca Pour.). Clones and known flower color mutants were identified as being identical, all other varieties were differentiated by a unique pattern with as few as three STMS markers. The high discriminating power of the loci suggests that a selection of the most-robust STMS markers may be able to differentiate any two varieties within rootstocks or Hybrid Teas except for mutants. The selected STMS markers will be useful as a tool for reference collection management, for assessing essential derivation of varieties and illegal propagatio
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