teosinte

基本解释

In South America, a weedy corn relative, teosinte, dresses the edges of domesticated cornfields.
在南美洲的玉米田周圍，長著它們的野生親慼，蜀黍。
Many of the major structural differences between maize and teosinte map to a few key chromosome regions.
玉蜀黍和大芻草染色躰之間主要的結搆差異，大多定位在少數的關鍵區域。
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迳庭，直到最近，有關它們的起源的爭議才平息（見上圖）。
Changes in a second gene that is active during seed development help to transform the stony, mineral-encased seeds of teosinte into the softer, more exposed kernels of maize.
第二個發生改變的基因活躍於種子發育時期，使得堅硬且被鑛物質包圍的大芻草種子，轉變成柔軟而容易取得的玉米子。
The potent influence of such genes is illustrated by the modern maize plant, which looks completely different from a wild, weedy ancestor called teosinte in Central America.
這種基因的強力影響，可以用現代玉蜀黍和它那長得完全不像的野生祖先大芻草（原産於中美洲的草本植物）來解說。