supported by the National Natural Science Foundation of China (Grant No.30471102);International Sci-tech Cooperation Foundation of Shanxi Province (2007081002);Scholarship Foundation of Shanxi Province (200689);the Key Sci-tech Program(20080311016-2) of Shanxi Province,China
Viruses are very widespread in nature, and they cause severe diseases and yield losses in potato production. The transfer of the dsRNA-producing gene could confer a high level virus resistance by specific targeting of...