国家自然科学基金项目31160149;贵州省科技厅农业攻关项目黔科合 NZ 字[2012]3009号;国家转基因生物新品种培育重大专项2014ZX08010-003资助。This study was supported by the National Natural Science Foundation of China31160149;the Agriculture Research Project from Guizhou Department of Science and TechnologyNZ[2012]3009;the National Major Project for Developing New GM Crops2014ZX08010-003