Acta Entomologica Sinica ›› 2020, Vol. 63 ›› Issue (6): 735-743.doi: 10.16380/j.kcxb.2020.06.009

• RESEARCH PAPERS • Previous Articles     Next Articles

Screening and identification of the protein interacting with the NSs protein of Tomato zonate spot virus in Franiklinella ocicdentalis(Thysanoptera: Thripidae) by yeast two-hybrid technique

ZHAO Xing-Yue1,2, CHEN Jian-Bin3, WANG Shu-Guang1, ZHANG Xiao-Lin1,2, MU Ye1,2, WEI Hui4, ZHAO Li-Hua2, CHEN Yong-Dui2, ZHENG Xue2, CHEN Yong4, ZHENG Li-Min3,*, ZHANG Jie2,*    

  1. (1. College of Life Sciences, Southwest Forestry University, Kunming 650224, China; 2. Yunnan Key Laboratory of Agricultural Biotechnology, Key Laboratory of Southwestern Crop Gene Resources and Germplasm Innovation, Ministry of Agriculture, Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205, China; 3. Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China; 4. Fujian Key Laboratory of Crop Pest Monitoring and Treatment, Fuzhou Crop Pest Science Observation and Experimental Station, Ministry of Agriculture, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China)
  • Online:2020-06-20 Published:2020-07-02

Abstract: 【Aim】 To screen and identify the protein interacting with the tomato zonate spot virus (TZSV) NSs protein in the western flower thrips, Franiklinella ocicdentalis. 【Methods】 The protein in F. ocicdentalis interacting with TZSV NSs was screened by yeast two-hybrid technique. After sequence analysis, the captured protein and NSs genes were cotransformed into yeast cells, and their interaction was identified by nutrient deficient medium. Furthermore, GST Pull-down was used to confirm the interaction of NSs and the identified protein in F. ocicdentalis in vitro. 【Results】 pGBKT7-NSs, a yeast two-hybrid bait plasmid of TZSV NSs, was constructed, and it showed no toxicity and no autoactivition to AH109 yeast cell. Sequence analysis showed that a voltage-dependent anion-selective channel-like (VDAC) protein of F. ocicdentalis interacted with TZSV NSs. The cotransformation test results showed that there was a specific interaction between TZSV NSs and VDAC in yeast cell. The GST Pull-down results showed that there was interaction between TZSV NSs and VDAC in vitro. 【Conclusion】 The specific interaction between TZSV NSs and F. ocicdentalis VDAC was confirmed in yeast cell and in vitro by yeast two-hybrid and GST Pull-down techniques, respectively. The results are helpful to reveal the mechanism of the protein VDAC regulating the transmission of persistent-propagative plant viruses in F. ocicdentalis and provide a theoretical basis for the prevention and control of insect-borne virus diseases.

Key words: Franiklinella ocicdentalis, yeast two-hybrid, tomato zonate spot virus, NSs protein, VDAC