x
uploads/teosinte.jpg

teosinte n.【植物;植物學】墨西哥類蜀黍 (Euchlaena ...

tepee

In corn ' s wild relative , teosinte , these alleles occur in only 7 to 36 percent of plants , indicating that the selection pressure applied by early farmers to favor those alleles was rapid and thorough 而在玉米的野生親戚大芻草里,這些對偶基因的出現率只有7 ~ 36 % ,顯示出早期農民對偏好的對偶基因,施予的選擇壓力很徹底而且快速。

Wild cotton for instance creeps past the florida keys across the gulf of mexico and into mexico . in south america a weedy corn relative teosinte dresses the edges of domesticated cornfields 舉例來說,野生棉花已經蔓延過弗羅里達群島,橫越墨西哥灣進入墨西哥在南美洲的玉米田周圍,長著它們的野生親戚,蜀黍。

Corn became so dissimilar to its ancestor , teosinte , that its origin was commonly disputed until very recently [ see illustration above ] 玉米和其祖先大芻草的外觀大相逕庭,直到最近,有關它們的起源的爭議才平息(見上圖) 。