Genetically engineered plants (GEPs) have been cropped on large scale so far in many countries,which plays a great role in creating economic benefits. While the same time, an increasing attention had also been paid for the ecological risks brought about by the release of GEPs.\;It was difficult to predicate the occurrence and extent of long\|term environmental effects when GEPs are introduced into ecosystems. Through genetic engineering, GEPs may potentially create changes that enhance an organism's abilit...