Development of microsatellite markers for genetic diversity analysis of Dendrobium loddigesii Rolfe, an endangered orchid in China

► A total of 12 new polymorphic microsatellite markers were developed. ► They were useful for estimation of genetic diversity of Dendrobium loddigesii. ► A high level of genetic diversity of D. loddigesii was detected. ► Results have important implications in conservation of this endangered orchid.