ACTA AGRICULTURAE BOREALI-SINICA ›› 2017, Vol. 32 ›› Issue (6): 8-13. doi: 10.7668/hbnxb.2017.06.002

Special Issue: Oil crops Drought and water saving Biotechnology

Previous Articles     Next Articles

The Study of the Expression Pattern of Soybean sbp Gene and Activity Analysis of It's Promoter

ZHAO Yan, ZHAI Ying, LI Shanshan, YANG Xiaojie, LIU Lili   

  1. College of Life Science and Agroforestry, Qiqihaer University, Qiqihaer 161006, China
  • Received:2017-09-10 Published:2017-12-28

Abstract: The expression pattern of soybean sbp gene and activity analysis of it's promoter was studied,which provided the theoretical foundation for further understanding the regulation of sbp gene expression and utilizing the promoter. The expression pattern of soybean sbp gene under different stresses and in soybean tissues were detected by qRT-PCR. The 5'-flanking upstream sequence of soybean sbp gene was isolated by PCR method and analyzed by some prediction softwares. The activity analysis of the promoter under drought stress and in different tissues were performed in transgenic tabacco. Soybean sbp gene was up-regulated by drought and were down-regulated by salt,cold and ABA. There was a little activity in roots,stems,leaves and flowers,but there was highest activity in seeds. The 5'-flanking upstream sequence of soybean sbp gene,named SP,was isolated,and the length was 942 bp. Sequence analysis revealed that this fragment contained a series of motifs related to seed-specific promoters,and stress-inducible promoters. The gus gene driven by SP promoter had high expression activity under drought stress or/and in seeds in transgenic tabacco through GUS histochemical analysis. SP promoter could have characteristics of drought-induced and seed-specific activity.

Key words: Soybean, sbp gene, Promoter, Cloning, Transgenic tobacco

CLC Number: 

Cite this article

ZHAO Yan, ZHAI Ying, LI Shanshan, YANG Xiaojie, LIU Lili. The Study of the Expression Pattern of Soybean sbp Gene and Activity Analysis of It's Promoter[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2017, 32(6): 8-13. doi: 10.7668/hbnxb.2017.06.002.

share this article