Maize Research Center,Beijing Academy of Agriculture and Forestry Sciences,Beijing Key Laboratory of Maize DNA Fingerprinting and Molecular Breeding,Maize Research Center,Beijing Academy of Agriculture and Forestry Sciences,Beijing Key Laboratory of Maize DNA Fingerprinting and Molecular Breeding,Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Beijing,Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Beijing,Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Beijing,China Rural Technology Development Center,Beijing,China Rural Technology Development Center,Beijing,Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Beijing