Genetically modified (GM) crops are developed and cultivated worldwide, providing protection against insects and diseases, or tolerance to herbicides. However, despite the advantages that GM crops, they pose many concerns not only to human and animal health but also to the environment. In the present study, we perform inter-retrotransposon amplified polymorphism (IRAP)-PCR to reveal SIRE1, Bagy2 and Nikita transposition events in soybean [Glycine max (L.) Merr.] and GM soybean under increasing salt stress conditions (0 mM as control, 80 mm, 120 mM, 160 mM and 200 mM NaCl). Salinity dramatically affected soybean and GM soybean in a similar way that stem lengths, root lengths and leaf areas were reduced compared to control. According to IRAP-PCR results, polymorphism ratios of SIRE1, Bagy2 and Nikita retrotransposons among all samples were found to be 22–100%, 0–73% and 37–100%, respectively. These results are the first direct report to demonstrate the relationship between TEs polymorphisms and salinity stress in soybean and GM soybean. TEs, which may explain part of the new phenotypes, play essential roles in genome and gene evolution. Such information can be useful to understanding of genome organization differences derived from TEs between soybean and GM soybean.

转基因（GM）作物在世界范围内得到开发和种植，可提供对昆虫和疾病的防护或对除草剂的耐受性。然而，尽管转基因作物具有很多优点，但它们不仅对人类和动物健康，还对环境造成了许多关注。在本研究中，我们进行了逆转录转座子间扩增多态性（IRAP）-PCR，以揭示大豆中的SIRE1，Bagy2和Nikita转座事件[ Glycine max[L.）Merr。]和转基因大豆在增加的盐胁迫条件下（对照为0 mM，80 mm，120 mM，160 mM和200 mM NaCl）。盐度显着影响大豆和转基因大豆，与对照相比，其茎长，根长和叶面积均减少。根据IRAP-PCR结果，SIRE1，Bagy2和Nikita的多态性比率发现所有样本中的逆转座子分别为22–100％，0–73％和37–100％。这些结果是第一个直接证明大豆和转基因大豆中TEs多态性与盐度胁迫之间关系的直接报道。TE可能解释了部分新表型，在基因组和基因进化中起着至关重要的作用。这样的信息对于理解源自大豆和转基因大豆之间的TEs的基因组组织差异可能是有用的。