National Maize Improvement Center/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University,Beijing 100193,P.R.China;
National Maize Improvement Center/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University,Beijing 100193,P.R.China;
National Maize Improvement Center/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University,Beijing 100193,P.R.China;
National Maize Improvement Center/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University,Beijing 100193,P.R.China;
National Maize Improvement Center/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University,Beijing 100193,P.R.China;
National Maize Improvement Center/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University,Beijing 100193,P.R.China;