2007 Annual Report 1a.Objectives (from AD-416) To map, with DNA markers, the location of a novel rice blast resistance and develop markers for marker assisted breeding. 1b.Approach (from AD-416) Segregation analysis of blast resistance will be combined with standard DNA marker analysis to map the loci associated with the resistance. 3.Progress Report This report serves to document research conducted under Specific Cooperative Agreement between ARS and University of Arkansas. Additional details of research can be found in the report for the in-house project 6402-21310-001-00D, “Genomics and Bioinformatics Research in Catfish, Cotton, and Soybeans.” The project is to map a novel form of Blast resistance with DNA markers. The primary year was for the development and screening of segregating populations which was to be done with collaborators at the University of Arkansas and National Rice Research Center. The funding for this project comes from project 6402-21310-001-04T. Participants attended the annual RiceCAP and breeders meeting for discussions on the project.