我们每到一个地方,总希望先有一张地图。在果树身上也有一张“地图”,但这张“地图”不是用来指明地理位置的,而是用来告诉科学家,果树身上某一性状的基因处在细胞的哪个位置,从而可以人为地调用这一基因来改变果树的品种、抗害能力,甚至改变果实的颜色、大小、口味等。 Everywhere we go, we always hope to have a map first. There is also a “map” in the fruit tree, but this “map” is not used to indicate the geographical location. It is used to tell the scientists where the gene of a certain trait in the fruit tree is located in the cell and can be called artificially. This gene changes the variety of fruit trees, their resistance to damage, and even changes the color, size, and taste of fruits.