Expression and analysis of diseases resistance-related genes in Oryza meyeriana Baill of Jinghong Yunnan Province.

Oryza meyeriana Baill fom Jinghong Yunnan Province is a high resistant wild rice ecotype to bacterial blight disease.With suppression subtractive hybridization(SSH),a library was constructed and utilized to identify the differentially expressed genes that induced by Xanthomonas oryzae pv.oryzae(Xoo).The SSH library was enriched a large number of stress and defense genes.It was important that a NBS-LRR gene and a STK gene were found in the library;ME207 coded ubiquitin conjugating enzyme acted as transduction factor in disease resistance;ME022 coded metallothionein gene prevented pathogen invasion and diffusion.In the study,it was concluded that the reaction of high resistance to bacterial blight diseases in O.meyeriana was mainly controlled by resistance genes.