Optimization of SCoT-PCR reaction system of Dendrobium officinale Genetic Diversity Analysis on Tobacco Germplasm Resistance to PVY Genetic diversity markers detected by inter-simple sequence repeats (ISSRs) in Crotalaria latifolia in Yunnan Curative effect of Juanbi Tongdu Decoction with neurolysis by small-needle knife and fumigation by Chinese materia medica on ankylosing spondylitis Genetic diversity of different populations of lilyturf revealed by RSAP analysis