Biotechnology Bulletin ›› 2020, Vol. 36 ›› Issue (1): 9-14.doi: 10.13560/j.cnki.biotech.bull.1985.2019-0684

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Cloning and Expression Analysis of SRPP2 Gene in Taraxacum kok-saghyz Rodin

ZHANG Rui-zhu, JIANG Yu-chen, HUANG Jun, YAN Jie   

  1. College of Life Science,Shihezi University,Shihezi 832003
  • Received:2019-07-29 Online:2020-01-26 Published:2020-01-08

Abstract: TkSRPP2 is a member of SRPP family in Taraxacum kok-saghyz Rodin,and plays an important role in the biosynthetics of natural rubber and stability of rubber particles. PCR was applied to clone the full length of TkSRPP2 gene from T. kok-saghyz Rodin,then the bioinformatics analysis of TkSRPP2 gene,subcellular localization and quantitative expression analysis of tobacco were conducted. The results demonstrated that the full length of TkSRPP2 gene was 633 bp,encoding 210 amino acids,the relative molecular weight of the protein was 23.15 kD,and the theoretical isoelectric point(pI)was 8.51. The phylogenetic analysis demonstrated that it was most closely related to SRPP3.The subcellular localization of tobacco revealed that TkSRPP2 protein was in cytoplasm. TkSRPP2 gene was expressed in many tissues of T. kok-saghyz Rodin,with the highest expression in 6 months roots.

Key words: Taraxacum kok-saghyz Rodin, Small rubber particle protein(SRPP), Bioinformatics analysis, Real-time quantitative PCR, Protein Subcellular Localization