Development of Transgenic Maize Tolerant to Both Glyphosate and Glufosinate

Genetically modified (GM) crops tolerant to glyphosate have delivered significant economic benefits in farm management. However, the evolution of resistance weeds due prolonged intensive use poses a serious threat this weed management system. It is highly desirable China deploy dual herbicide-tolerant corn at very beginning GM release delay development herbicides. Here, we report creation and characterization event SCB-29 that expresses both cp4 epsps bar genes. This transgenic maize up 3600 g a.e. ha−1 glufosinate a.i. ha−1, which are quadruple recommended rates for two herbicides, respectively. an with only single copy T-DNA inserted into chromosome 10 genome. An event-specific PCR detection method was established three generations were detected by suggesting transgenes stably integrated Analysis expression levels among plants multiple enzyme-linked immunosorbent assays suggested expressions stable over different generations. Moreover, major agronomic performances appear be similar those non-transgenic maize, not likely yield drag. Therefore, excellent candidate developed commercial herbicide tolerance event.