Application of Transgenic Technology in Soybean Breeding

A prerequisite for plant genetic engineering is to produce transgenic plants.Selectable marker genes have been widely used in plant transformation because of the low efficiency of transgenic integration.However,the use of selectable marker genes would affect the safety evaluation of transgenic plants and there are perceived risks in bio-safety and environmental safety.An effective soybean transformation system is necessary to breed new soybean varieties in improving the yield,quality and resistance.In this review,the new selectable marker genes in soybean breeding and transgenic technology in crops breeding were summarized.