2011 Annual Report
1)Wheat: DNA libraries and clones have been sent to Chinese collaborators for sequencing, and genomic resources have been constructed in China, that were used to identify genes required for pathogenicity of strip rust strains. Collaborative research has led to the identification of new genes for grain hardness, grain color, and milling quality and contrinuted to increasing wheat quality in both countries..
2)Maize: USDA has provided 25 inbred maize lines and their 5,000 progeny to the Chinese Academy of Agricultural Science (CAAS). CAAS has prepared 12 inbred maize lines and their 2,000 progeny for USDA. The Chinese are preparing the seed and getting the final permission to ship the seed to the U.S.A. ARS has made plans to receive the CAAS inbred lines at the National Plant Genetics Resource Center, Ft. Collins, CO, and is applying for authorization from APHIS for quarantine grow-out by ARS, Mayaguez, PR. The CAAS will conduct managed stress drought trials in 2012 with the hybrid lines. Dr. Edward Buckler, ARS Ithaca is providing expertise on experimental design and visited the Chinese project and learned that the field trials have been expended from 3 to 11 very large field trials in China. The USDA will genotype the combined U.S. and the Chinese germplasm (37 lines/7,000 lines progeny) with uniforming high density genotyping. This research will greatly advance our knowledge of how maize diversity can enhance drought tolerance. Moreover, it will accelerate the development of maize varieties that can grown under conditions where ocassional drought is likely. This will make a more stable agricultural production system for both the U.S. and China..
3)Rice: Extensive research on genetic and genomic strategies to protect rice from disease and analysis of diverse rice genetic resources. Ongoing informal cooperations on examining molecular mechanisms of rice blast resistance, and to clone rice Ptr(t) gene, a critical component of rice blast..
4)Soybean: Dr. Don Ort, ARS Urbana, IL spent 2 months in China for collaborative project on optimizing crop canopy chlorophyll content for maximizing photosynthetic efficiency and yield..
5)Crop Pests: collaborative research is underway on Oriental Armyworm. A comprehensive review of Oriental Armworm migratory ecology conducted by CAAS scientists published in Chinese is being translated into English and prepared for publication.