国家重点研发计划试点专项SQ2016ZY03002918;国家转基因生物新品种培育重大专项2016ZX08010002-003-002;北京市自然科学基金重点项目6151002;中国农业科学院科技创新工程项目资助。This study was supported by the National Research and Development ProgramSQ2016ZY03002918;the Genetically Modified Organisms Breeding Major Projects of China2016ZX08010002-003-002;the Key Project of Beijing Natural Science Foundation6151002;the Agricultural Science and Technology Innovation Program of CAAS