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美国农业部的科学家经过两年的生物工艺学研究,首次获得在叶片上建成驱虫剂的马铃薯杂交种。这种马铃薯带有一种稀有的基因,该基因控制能产生抗虫作用的化学物质莱
After two years of biotechnology research, USDA scientists first obtained potato hybrids that had insect repellents built on their leaves. This potato carries a rare gene that controls chemicals that can produce insect resistance