title: Investigation of transgenic soybean components in soybean from an area of China.
abstract: BACKGROUND
  To evaluate the large quantities of genetically modified soybeans that are imported into China, we evaluated the presence of transgenes in soybean samples from an area, which are major soybean-producing areas. We evaluated the presence of exogenous genes in a total of 254 soybean samples from farms and 35 commercially available soybean samples using polymerase chain reaction amplification and sequence analysis.
  
  
  RESULTS
  The farm soybean samples contained a total of 67 CaMV35S-positive samples, 46 NOS-positive samples, 16 CP4-EPEPS-positive samples, and 66 BT-positive samples. The commercially available soybean samples contained a total of 12 CaMV35S-positive samples, 19 NOS-positive samples, 13 CP4-EPEPS-positive samples, and 15 BT-positive samples.
  
  
  CONCLUSIONS
  Several exogenous genes were detected in the farmed and commercially available soybeans. We should use caution in the management of genetically modified soybeans. © 2015 Society of Chemical Industry.
authors.affiliation: Shandong Provincial Key Laboratory of Microbiological Engineering, College of Food Science and Engineering, Qilu University of Technology, Ji'nan 250353, China.|College of Animal Science, Shandong Agricultural University, Taian 271018, China.
authors.forename: Cunfang
authors.initials: C
authors.lastname: Wang
authors.affiliation: Shandong Provincial Key Laboratory of Microbiological Engineering, College of Food Science and Engineering, Qilu University of Technology, Ji'nan 250353, China.
authors.forename: Yuying
authors.initials: Y
authors.lastname: Zhu
mesh_terms: D000383:Agriculture; D001483:Base Sequence; D002681:China; D018744:DNA, Plant / Q000032:analysis / Q000235:genetics; D030841:Food, Genetically Modified; D018515:Plant Leaves / Q000235:genetics; D010940:Plant Proteins / Q000032:analysis / Q000235:genetics; D030821:Plants, Genetically Modified / Q000235:genetics*; D016133:Polymerase Chain Reaction / Q000379:methods; D017421:Sequence Analysis; D013025:Glycine max / Q000235:genetics*
chemical_list: D018744:DNA, Plant; D010940:Plant Proteins
keywords: PCR detection; exogenous genes; genetically modified organisms; sequence analysis; soybean