农业部引进国际先进农业科学技术计划“948”重点项目2011-G30;国家自然科学基金项目41571236;国家科技支撑计划项目2011BAD11B01共同资助 Supported by the Key Program of Recommend International Advanced Agricultural Science and Technology Plan "948" from Ministry of Agriculture of China2011-G30;the National Natural Science Foundation of China41571236;the National Key Technology R&D Program of China2011BAD11B01