achieved transgenosis efficiencies by them are unobtainable by chemical methods.
其转换率是用化学方法所得不到的。
it is important to cultivate poplar that can resist insect. transgenosis technology has become main means to improve the quality of insect-resistant of present plant by creating new varieties.
利用转基因技术培育抗虫杨树新品种已成为当前植物遗传改良的重要手段。
background: the methods of inducing the differentiation of bone marrow stromal cells into osteoblasts included the differentiation under chemicals effect, cytokine effect and transgenosis .