Nucleic acid markers for rice blast resistance genes and rice blast resistance genes isolated by the use of these markers

摘要

The present invention provides nucleic acid markers for rice blast resistance genes Pi-ta and Pi-ta2, which hybridize with any RFLP probes isolated from rice genomic DNA and are located within a distance of 2.0 cM from rice blast resistance genes Pi-ta or Pi-ta2. According to the present invention, it becomes possible to easily identify rice blast resistance genes and related genes from rice cultivars containing Pi-ta or Pi-ta2, thus promoting development and breeding of superior cultivars. It becomes also possible to easily carry out a resistance test of rice. This will open up way to create new resistance genes.