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One of the concerns about working with genetically2 modified crops has been that vegetation growing in agricultural fields might escape out into the world. Now, for the first time in the U.S., researchers report a large population of GM crops beyond the farm.
Transgenic canola plants in North Dakota had received genes3 making them resistant4 to herbicides, such as the weed killer5 Roundup. Researchers collected and tested 406 canola plants along thousands of miles of state roads. They found 347 carrying at least one resistance gene1. There were also indications that the inserted genes were being passed on to new generations, producing some plants in the wild with multiple transgenes. The findings were presented on August 6th at the annual meeting of the Ecological6 Society of America in Pittsburgh.
The transgenic canola plants are not about to take over the world. But researchers are obviously curious about how these particular plants managed to make it in places like the edges of parking lots rather than pampered7 fields. Any answers they find will likely affect future biotechnology regulation.
Thanks for the minute. For Scientific American's 60-Second Science, I'm Molly Webster.
1 gene | |
n.遗传因子,基因 | |
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2 genetically | |
adv.遗传上 | |
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3 genes | |
n.基因( gene的名词复数 ) | |
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4 resistant | |
adj.(to)抵抗的,有抵抗力的 | |
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5 killer | |
n.杀人者,杀人犯,杀手,屠杀者 | |
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6 ecological | |
adj.生态的,生态学的 | |
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7 pampered | |
adj.饮食过量的,饮食奢侈的v.纵容,宠,娇养( pamper的过去式和过去分词 ) | |
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