1. Department of Agronomy, Purdue University, West Lafayette, Indiana 47907
2. State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
3. United States Department of Agriculture–Agricultural Research Service, Corn Insects and Crop Genetics Research Unit, Ames, Iowa 10011
4. Beijing Genome Institute-Shenzhen and the Key Laboratory of Genomics of the Minister of Agriculture, Shenzhen 518083, China
5. State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Hong Kong 1 SAR, China