转基因小麦是利用植物授粉后花粉萌发形成的花粉管,将外源DNA送入胚囊中尚不具备正常细胞壁的合子,最终直接获得转基因的种子。该方法具有突出的发展优势:比如操作简单,耗费低廉,且不需要经过繁琐的组织培养和植株再生过程,特别是可以在未分离目的基因的情况下将植物的总DNA直接用于遗传转化。
但是近年来反对的声音开始减弱。许多美国农民已经表示,如果转基因小麦有助于提高产量和利润,他们将欢迎。
But some of that opposition has waned in recent years and many U.S. farmers have said they would welcome a genetically altered wheat if it helped them increase yields and profits.
本文着重探索转基因小麦中外源品质基因在杂交后代中的纯系筛选,同时分析外源基因在后代中的遗传规律。
This paper explores emphatically the selection of pure wheat lines. At the same time, the hereditary law of the foreign quality genes in the generations was also discussed.
两家公司表示,他们希望为北美和澳大利亚市场开发一个高产转基因小麦,但最初的商业化可能在2020年后的某个时间实现。
The companies said they hope to develop a yield enhanced biotech wheat for North American and Australian markets, but initial commercialization will occur sometime after 2020.
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