Chinese jujube (Ziziphus jujuba Mill.), a precious germplasm resources originated from China and a kind of important and specific fruit trees in China, belongs to family Rhamnaceae. Jujube witches' broom disease (JWB), caused by phytoplasma, is one of the most serious and destructive diseases of Chinese jujube. It is important to clone the resistant gene by using molecular biology from resistant resources. In preliminary studies, our group had found that there were resistant and sensitive strains in...