Regeneration Function Analysis of GmESR1 in Transgenic Soybean

ENHANCER OF SHOOT REGENERATION （ESR1） is an important regulator of plant regeneration in vitro,which promotes regeneration of plant.In this study,transgenic positive plants with normal expression of proteins were screened by molecular assay.Through the study of the transgenic plants and the control Dongnong 50,the difference between immature embryo-induced callus and induced shoot bud was observed.The increase in callus weight indicated that GmESR1 gene accelerated the formations of shoot buds.By measuring the changes of hormone in the process of induction callus of transgenic plants,it was found that the contents of indole-3-acetic acid （IAA） and zeatin （ZT） in transgenic lines were significantly increased.It could be concluded that GmESR1 gene promoted the accumulation of hormone and affected regeneration process.In addition,this study also verified the interaction between GmBIM1 gene and GmESR1 gene by bimolecular fluorescence complementation （BiFC）.