1. National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (X.Z., F.Q., W.L., Y.X., L.X., W.Y., J.Y.), College of Engineering (C.H., D.W., L.D., K.W., W.Y.), and Ministry of Agriculture Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River (G.C.), Huazhong Agricultural University, Wuhan 430070, People’s Republic of China; and