Transfer of Lysine-rich Protein Gene into Rice and Production of Fertile Transgenic Plants Dominant Allelic Variations of Three SSR Sites within Opaque-2 Gene and Their Effect on Lysine Content in Maize LRP Transgenic Indica Rice Restorer Line without Resistance Selection Marker Comparison research of growth development of high quality maize in Huang-Huai-Hai Plain Genetic Analysis for Lysine Content of Rapeseed Cake (Brassic napus L.) at Different Periods after Anthesis