teosinte

基本解釋

In South America, a weedy corn relative, teosinte, dresses the edges of domesticated cornfields.
在南美洲的玉米田周圍，長著它們的野生親戚，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體之間主要的結(jié)構(gòu)差異，大多定位在少數(shù)的關(guān)鍵區(qū)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逕庭，直到最近，有關(guān)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(fā)生改變的基因活躍于種子發(fā)育時期，使得堅硬且被礦物質(zhì)包圍的大芻草種子，轉(zhuǎn)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(qiáng)力影響，可以用現(xiàn)代玉蜀黍和它那長得完全不像的野生祖先大芻草（原產(chǎn)于中美洲的草本植物）來解說。